Patent Application
20230344146
This application relates to the field of wireless communication, and in particular, to a feed stripline, a phase shifter on which the feed stripline is disposed, an array antenna, and a base station.
A feed stripline is a common component in a communication base station, and may serve as a radio frequency functional device such as a power divider, a coupler, a filter, and an electronic tilt, to implement transmission of a wireless microwave signal. Most existing feed striplines are of a plane structure. To ensure electrical performance, power divider branch lines in the feed stripline extend along different transmission paths in a plane, and avoid signal serial connection caused by crossing or overlapping. Consequently, a plane area of the feed stripline is difficult to control, and a part of the plane area may not be utilized. As a result, an area ratio of the feed stripline is large, which is not conducive to a miniaturization trend of current communication devices such as a base station.
The present disclosure provides a three-dimensional feed stripline structure, a phase shifter including the three-dimensional feed stripline structure, an array antenna, and a base station, to reduce an area ratio of a feed stripline. This application specifically includes the following technical solutions:
According to a first aspect, this application provides a feed stripline. The feed stripline includes a signal input line, a first power branch line, and a second power branch line, where one end of the signal input line is conducted to an external signal source, the other end is electrically connected to each of the first power branch line and the second power branch line, the first power branch line includes a jump structure, the first power branch line spans from one side of the second power branch line to the other side of the second power branch line by using the jump structure, and the jump structure and the second power branch line are spaced from each other.
In the feed stripline in this application, the first power branch line and the second power branch line are separately connected to the signal input line, so that an external electrical signal input from the signal input line may be separately transferred to the first power branch line and the second power branch line, and the electrical signal is separately transmitted on an extension path of the first power branch line and transmitted on an extension path of the second power branch line. By setting extension lengths of the first power branch line and the second power branch line to be different from each other, a phase difference may be generated between an electrical signal output by the first power branch line and an electrical signal output by the second power branch line, and a preset tilt is correspondingly obtained.
In this application, in the feed stripline, the jump structure is further disposed on the first power branch line, allowing the first power branch line to extend a specific distance on one side of the second power branch line, and also span to the other side of the second power branch line using the jump structure for further extension. The jump structure and the second power branch line are spaced from each other. To be specific, when the first power branch line spans from one side of the second power branch line to the other side, the first power branch line does not overlap the second power branch line. This ensures normal transmission of the electrical signal on each of the first power branch line and the second power branch line. In addition, the jump structure extends an extension range of the first power branch line, improving utilization of a space area of the feed stripline, reducing an overall volume of the feed stripline, and ensuring an electrical function of the feed stripline.
In a possible implementation, the signal input line and the second power branch line are both located in a first plane, the first power branch line includes a first segment and a second segment that are located in the first plane, the first segment and the second segment are distributed on two opposite sides of the second power branch line, the jump structure includes a connection segment located in a second plane, and the connection segment is electrically connected to each of the first segment and the second segment.
In this implementation, the first power branch line is divided into the first segment and the second segment that are independent of each other, and the first segment and the second segment are distributed on the two opposite sides of the second power branch line, so that a main structure of the first power branch line, the signal input line, and the second power branch line are all located in the first plane. This defines a plane structure of a main body of the feed stripline in this application, and facilitates synchronous manufacturing of the first segment, the second segment, the signal input line, and the second power branch line. The connection segment located in the second plane separately collaborates with the first segment and the second segment to implement electrical signal transmission between the first segment and the second segment. This can ensure electrical signal transmission on the first power branch line under a condition that the jump structure and the second power branch line are spaced from each other.
In a possible implementation, the jump structure further includes a first pin and a second pin, the first pin and the second pin are distributed at two opposite ends of the connection segment, the connection segment is in contact with and conducted to the first segment through the first pin, and the connection segment is further in contact with and conducted to the second segment through the second pin.
In this implementation, the jump structure further includes the first pin and the second pin that are distributed at the two opposite ends of the connection segment, and the first pin and the second pin are respectively connected between the first plane and the second plane, so that the two opposite ends of the connection segment are respectively in contact with and conducted to the first segment and the second segment. The electrical signal transmitted in the first segment is finally transmitted to the second segment sequentially through the first pin, the connection segment, and the second pin, and continues to be transmitted to an endpoint of the first power branch line through the second segment.
In a possible implementation, the first pin, the second pin, and the connection segment are of an integrated structure.
In this implementation, the jump structure is integrally formed, and connections between the connection segment and the first pin and the second pin are more stable. This improves reliability of the first power branch line.
In a possible implementation, the first pin and the first segment are welded and fastened, and the second pin and the second segment are also welded and fastened.
In this implementation, through welding and fastening, reliable contact and conduction between the first pin and the first segment can be ensured, and reliable contact and conduction between the second pin and the second segment can be ensured.
In a possible implementation, the first segment includes a first end far away from the signal input line, the second segment includes a second end close to the first segment, a first opening and a second opening are respectively disposed on the first end and the second end, the first pin extends into the first opening and is in contact with and conducted to the first segment, and the second pin extends into the second opening and is in contact with and conducted to the second segment.
In this implementation, the first opening is disposed at a position of the first segment close to the second segment, so that the first pin extends into the first opening; and the second opening is disposed at a position of the second segment close to the first segment, so that the second pin also extends into the second opening. This can ensure reliable contact between the first pin and the first segment, and ensure reliable contact between the second pin and the second segment.
In a possible implementation, the jump structure is elastic; and when the jump structure separately extends into the first opening and the second opening, elastic deformation is formed between the first pin and the second pin, and there is an elastic force of drawing together or stretching apart.
In this implementation, in addition to welding and conduction, reliable overlap contact between the first pin and the first opening may be ensured through elastic deformation. In addition to welding and conduction, reliable overlap contact between the second pin and the second opening may be ensured through elastic deformation. In addition, there is the elastic force, of drawing together or stretching apart, between the first pin and the second pin, so that the elastic force of the first pin and the elastic force of the second pin interact with each other, to ensure reliable overlap contact between the first pin and the second pin and the first opening and the second opening.
In a possible implementation, the connection segment includes a first coupling end and a second coupling end that are opposite to each other, a projection of the first coupling end in the first plane at least partially overlaps the first segment, and the first coupling end is electrically connected to the first segment through coupling; and
In this implementation, the connection segment is not in contact with the first segment and the second segment, but separately forms a mutual coupling structure with the first segment and the second segment through the first coupling end and the second coupling end. The electrical signal transmitted in the first segment is transmitted to the jump structure through coupling, and then is transmitted to the second segment again through coupling, so that the jump structure transmits the electrical signal in the first segment to the second segment.
In an implementation, a first coupling capacitor is formed between the first coupling end and the first segment, and a second coupling capacitor is formed between the second coupling end and the second segment.
In this implementation, a capacitor structure is separately formed between the jump structure and the first segment and the second segment, and a coupling electrical connection is implemented in a form of the first coupling capacitor and the second coupling capacitor.
In a possible implementation, an insulated isolation pad is separately filled between the first coupling end and the first segment and between the second coupling end and the second segment.
In this implementation, the isolation pad may be formed through injection molding or the like, to form fastening between the first coupling end and the first segment, and form fastening between the second coupling end and the second segment. The isolation pad can ensure relative positions between the jump structure and the first segment and the second segment, to ensure electrical stability of the first coupling capacitor and the second coupling capacitor.
In a possible implementation, the feed stripline includes a printed circuit board, the printed circuit board includes a first metal surface and a second metal surface that are disposed opposite to each other, the first metal surface is constructed as the first plane, and the second metal surface is constructed as the second plane.
In this implementation, the feed stripline is prepared on the printed circuit board to form a form of a PCB (printed circuit board) stripline. The PCB has the first metal surface and the second metal surface that are disposed opposite to each other. The first metal surface is constructed as the first plane of the feed stripline. The signal input line, the first segment, the second segment, and the second power branch line may be disposed in the first metal surface, and the connection segment of the jump structure may be disposed in the second metal surface. In this case, the second metal surface is constructed as the second plane, and a PCB substrate may form reliable support for the feed stripline.
In a possible implementation, the printed circuit board includes a via, the via is connected between the first plane and the second plane, and the first pin and the second pin are both constructed as conductive elements that pass through the via.
In this implementation, the via may be manufactured on the printed circuit board by using existing process technologies. The via is connected between the first plane and the second plane. In addition, a position of the via is disposed, so that the via may be located between the connection segment and the first segment, and located between the connection segment and the second segment. Then, the first pin and the second pin are disposed to be respectively connected between the connection segment and the first segment and connected between the connection segment and the second segment through the via, so that the jump structure can reliably overlap each of the first segment and the second segment.
In a possible implementation, the first pin and the second pin are respectively constructed as conductive materials filled in the via; or
In this implementation, the via is filled with metal or another conductive material, to form a conductive via. This implements functions of the first pin and the second pin, and ensures that the connection segment reliably overlaps each of the first segment and the second segment. Alternatively, the first pin and the second pin may be respectively constructed as conductive elements. After passing through the via, the conductive elements overlap the connection segment and the first segment, and are connected between the connection segment and the second segment, to implement an electrical signal transmission function of the jump structure between the first segment and the second segment.
In a possible implementation, an input match line, a first power match line, and a second power match line are further disposed in the second metal surface;
In this implementation, in a second external surface that is disposed opposite to a first external surface, an input match line is further disposed for the signal input line, and the input match line and the signal input line work together and transmit an electrical signal transmitted from the signal source. In addition, the first power match line and the second power match line are also respectively disposed for the first power branch line and the second power branch line. The first power branch line and the first power match line work together to implement transmission of the electrical signal in an extension direction of the first power branch line, and the second power branch line and the second power match line work together to implement transmission of the electrical signal in an extension direction of the second power branch line. Due to a feature of isolation between the first external surface and the second external surface on the PCB, positions of lines in the two external surfaces are relatively fastened, and a basis for implementing signal conduction through cooperation is available.
It may be understood that when the first power match line is disposed in the second external surface, the connection segment may be constructed as a part of the first power match line, and is also configured to implement transmission of the electrical signal between the first segment and the second segment and transmission of the electrical signal in the first power match line.
In a possible implementation, the via on the printed circuit board may alternatively be located between the signal input line and the input match line, and/or between the first power branch line and the first power match line, and/or between the second power branch line and the second power match line, and is configured to: form an electrical path between each line and a match line corresponding to the line, and adjust an equivalent dielectric constant.
In a possible implementation, an included angle α between the projection of the connection segment in the first plane and the second power branch line meets a condition: 45°≤α≤90°.
In this implementation, because the connection segment spans the second power branch line and is disposed at an interval with the second power branch line, that is, the connection segment and the second power branch line form a spatial cross, the projection of the connection segment in the first plane partially overlaps the second power branch line. The included angle between the connection segment and the second power branch line is set, so that an overlapping area between the connection segment and the second power branch line can be controlled, thereby avoiding electrical signal interference caused by an excessively large overlapping area between the connection segment and the second power branch line.
In a possible implementation, the first plane is parallel to the second plane.
In this implementation, the first plane is a plane in which the second power branch line is located, and the second plane is a plane in which the connection segment is located. The first plane is set to be parallel to the second plane, so that in a process of spanning the second power branch line, the connection segment always maintains a stable height difference with the second power branch line. This helps control signal interference between the connection segment and the second power branch line.
In a possible implementation, the feed stripline further includes a signal input port, a first output port, and a second output port, one end of the signal input line away from the first power branch line and the second power branch line is connected to the signal input port, one end of the first power branch line away from the signal input line is connected to the first output port, and one end of the second power branch line away from the signal input line is connected to the second output port.
In this implementation, the signal input line is connected to the signal input port to receive the signal source. The first power branch line and the second power branch line separately output signals to the endpoint through signal output ports respectively connected to the first power branch line and the second power branch line, to implement a phase allocation function of the feed stripline.
In a possible implementation, the feed stripline further includes a shielding cavity, and the input line, the first power branch line, and the second power branch line are all accommodated and fastened in the shielding cavity, and are insulated from the shielding cavity.
In this implementation, the feed stripline is constructed as a suspended stripline, and the shielding cavity can shield external signal interference, to reduce a loss of an electrical signal transmitted by the feed stripline in the shielding cavity in this application.
According to a second aspect, this application provides a phase shifter. The phase shifter includes a sliding medium and the feed stripline provided in the first aspect of this application. The sliding medium separately overlaps the first power branch line and/or the second power branch line, and the sliding medium slides relative to the first power branch line and/or the second power branch line to adjust a phase of a signal output by the phase shifter.
According to the second aspect of this application, the feed stripline is used as a power divider in the phase shifter, and the sliding medium may change electrical lengths of the first power branch line and the second power branch line by sliding relative to the feed stripline, to adjust a phase difference between an electrical signal transmitted in the first power branch line and an electrical signal transmitted in the second power branch line.
According to a third aspect, this application provides an array antenna. The array antenna includes the feed stripline provided in the first aspect of this application and/or the phase shifter provided in the second aspect of this application.
According to a fourth aspect, this application further provides a base station. The base station includes the feed stripline provided in the first aspect of this application, and/or the phase shifter provided in the second aspect of this application, and/or the array antenna provided in the third aspect of this application.
In a possible implementation, the base station further includes a building baseband processing unit, a remote radio unit, and an antenna feed system. The feed stripline provided in the first aspect of this application, and/or the phase shifter provided in the second aspect of this application, and/or the array antenna provided in the third aspect of this application are/is disposed in the antenna feed system. The remote radio unit is connected between the building baseband processing unit and the antenna feed system. The antenna feed system is connected to the building baseband processing unit through the remote radio unit to implement a transceiver function of a wireless signal.
It may be learned that, in the phase shifter, the array antenna, and the base station provided in the second aspect to the fourth aspect of this application, because the feed stripline in this application is used, the same as the feed stripline in the first aspect of this application, the first power branch line may be distributed on two sides of the second power branch line, improving plane utilization of the feed stripline, making a volume ratio of the feed stripline smaller, and facilitating overall volume control of products in various aspects.
The following describes technical solutions in embodiments of this application with reference to accompanying drawings in embodiments of this application. It is clear that the described embodiments are merely some but not all of embodiments of this application. All other embodiments obtained by a person of ordinary skill in the art based on embodiments of this application without creative efforts shall fall within the protection scope of this application.
A base station in this application includes a building baseband processing unit (BBU), a remote radio unit (RRU), and an antenna feed system 500 shown in
Refer to a schematic diagram of a structure of the antenna feed system 500 shown in
The array antenna 400 is an array antenna in this application. The array antenna 400 is further electrically connected to the grounding apparatus 501, to implement a grounding function of the array antenna 400. One end of the grounding apparatus 501 that is far away from the array antenna 400 may be further connected and fastened to the pole 502, to implement a grounding function through the pole 502. It may be understood that the grounding apparatus 501 may alternatively be directly fastened on the ground, to ensure a reliable grounding function of the array antenna 400. The array antenna 400 is usually accommodated in a sealed box body (radome). In terms of mechanical performance, the box body needs to have sufficient stiffness and strength and capabilities such as anti-fouling and waterproofing, to protect internal components of the array antenna 400 from external environment. In terms of electrical performance, the box body needs to have a good electromagnetic wave penetration characteristic, to ensure signal receiving and sending functions of the array antenna 400. The connector seal element 504 may be further disposed between the grounding apparatus 501 and the box body of the array antenna 400. When the grounding apparatus 501 is led out from the array antenna 400, the connector seal element 504 can be used to implement a sealing connection between the grounding apparatus 501 and the box body of the array antenna 400, to further implement sealing protection for components inside the box body of the array antenna 400.
Refer to a diagram of an internal architecture of the array antenna 400 in this application shown in
It may be understood that the phase shifter 403 in the array antenna 400 is a phase shifter in this application. The phase shifter 403 is electrically connected to the radiation units 401, and one side of the phase shifter 403 that is away from the radiation units 401 is further connected to an antenna interface 406, and is connected to the building baseband processing unit (not shown in the figure) of the base station through the antenna interface 406. The building baseband processing unit of the base station may be configured to generate signals. After phase allocation is performed on the signals by the phase shifter 403, the signals are transferred to the radiation units 401, and transmitted to the outside. Alternatively, the building baseband processing unit is configured to receive radio signals transmitted by the radiation units 401, and the radio signals are obtained through phase processing performed by the phase shifter 403. The phase shifter 403 in this application is configured to perform phase adjustment on a radio signal, to change a tilt of a radio signal beam, and optimize a communication network. Further, functional components such as a transmission or calibration network 404 and a combiner or filter 405 may be further disposed in the array antenna 400, and are separately configured to perform operations such as calibrating a radio signal and adjusting an amplitude of the radio signal.
Refer to a schematic diagram of a structure of the phase shifter 403 in this application shown in
In this specification of this application, for ease of description of embodiments, the feed stripline 100 is used as a power divider in the phase shifter 403 to describe implementations in detail. Further, in this application, the feed stripline 100 is further disposed in a shielding cavity, to form a structure of a suspended stripline 300.
Still refer to
The cavity 200 has electromagnetic shielding performance, and may be used as a grounding structure of the feed stripline 100. In addition, the cavity 200 shields external signal interference, to ensure electrical signal transmission of the feed stripline 100. In other words, the cavity 200 is used as a shielding cavity of the feed stripline 100. In an embodiment, the cavity 200 may be an integrally sealed structure, and the stripline 100 is accommodated in the integrally sealed cavity 200, to achieve a better shielding effect. In some other embodiments, a via 204 may be disposed in the cavity 200 as shown in
The sliding medium 301 is slidely connected in the cavity 200, and is located on one side of the feed stripline 100. As shown in
Still refer to
One end of the signal input line 150 is connected to the signal input port 101. The signal input line 150 receives or sends a signal through the signal input port 101. In this embodiment of this application, the signal input port 101 and the signal output port 102 may be independent interface structures. The signal input port 101 may also be defined as one end of the signal input line 150, and the signal output port 102 may also be defined as one end of the power branch line. It may be understood that, notches (not shown in the figure) corresponding to the signal input port 101 and the signal output port 102 may be further disposed on the cavity 200, to implement signal transmission between the feed stripline and the outside.
One end of the signal input line 150 that is far away from the signal input port 101 is conducted to a plurality of power branch lines. As shown in
It should be noted that the first input segment 151 and the second input segment 152 are used as connection lines connecting the main body 153 and the power branch lines, and may also be considered as a part of the power branch lines. In other words, the first input segment 151 may also be considered as a line extending to the main body 153 after the first power branch line 110 and the second power branch line 120 are combined, and the second input segment 152 may also be considered as a line extending to the main body 153 after the third power branch line 130 and the fourth power branch line 140 are combined. The first input segment 151 and the second input segment 152 are merely used as two connection segment structures in the feed stripline 100. Specific homing division of the first input segment 151 and the second input segment 152 does not affect function implementation of the feed stripline 100 in this application.
It may be understood that, when the feed stripline 100 includes four power branch lines, if the four power branch lines are directly conducted to the signal input line 150, in other words, if the four power branch lines are directly connected to the main body 153 of the signal input line 150, when electrical signals flow from the main body 153 to the power branch lines, a phenomenon that the electrical signals flow from a large line width to a narrow line width occurs, which is not conducive to impedance matching of the feed stripline 100. The first input segment 151 and the second input segment 152 may be disposed to provide transition for a line width change on a transmission path of the electrical signals, to reduce a loss caused by the line width change in a transmission process of the electrical signals.
In another aspect, in the feed stripline 100 in this application, it is not limited to disposition of two input segments: the first input segment 151 and the second input segment 152. When the feed stripline 100 includes more than four power branch lines, more input segments may be further disposed to be connected to different power branch lines.
Alternatively, when there are two or three power branch lines of the feed stripline 100, an input segment transition structure may not be disposed, and the first power branch line 110 and the second power branch line 120 are directly connected to the signal input line 150 (as shown in
As shown in implementations in
Refer to
Refer to
When the sliding medium 301 covers the first input segment 151 and the first power branch line 110, equivalent dielectric constants of coverage parts of the first input segment 151 and the first power branch line 110 may be changed. When the equivalent dielectric constants of the first input segment 151 and the first power branch line 110 change synchronously under an action of the sliding medium 301, an actual electrical length from the signal input port 101 to the first signal output port 1021 is also adjusted accordingly. It may be understood that, sliding of the sliding medium 301 further synchronously changes a coverage length of the sliding medium 301 for the second power branch line 120, and causes adjustment of an equivalent dielectric constant of the second power branch line 120 and corresponding adjustment of an electrical length of the second power branch line 120. Further, electrical lengths of the third power branch line 130 and the fourth power branch line 140 are adjusted synchronously. In this application, the phase shifter 400 may change phase angle differences between the first output port 1021, the second output port 1022, the third output port 1023, and the fourth output port 1024 by sliding the sliding medium 301, to implement a function of adjusting a phase angle of an electrical signal.
It may be understood that, when electrical signals are separately input from the first output port 1021, the second output port 1022, the third output port 1023, and the fourth output port 1024 and transmitted to the signal input port 101, the electrical signals obtained by the signal input port 101 also undergoes phase adjustment due to electrical length differences between the first power branch line 110, the second power branch line 120, the third power branch line 130, and the fourth power branch line 140.
It should be noted that, in the structure shown in
Refer to a schematic diagram of a structure of the feed stripline 100 on one side of the first output segment 151 shown in
The first power branch line 110 further includes a jump structure 30, where the jump structure 30 is located between the first segment 10 and the second segment 20, and is spaced from the second power branch line 120. The jump structure 30 is fastened relative to the first segment 10 and the second segment 20, and is configured to implement a signal transmission function between the first segment 10 and the second segment 20. Specifically, because the first power branch line 110 is disconnected into the first segment 10 and the second segment 20 that are spaced from each other, after an electrical signal transmitted on the first power branch line 110 arrives at the first end 11, the signal at the first end 11 is transmitted to the second end 21 under an action of the jump structure 30 fastened relative to the first segment 10 and the second segment 20, and the electrical signal is further transmitted to the first signal output port 1021 through the second segment 20, to implement a function of transmitting the electrical signal on the entire first power branch line 110.
Refer to a structure of an existing feed stripline 100a shown in
However, in this application, the feed stripline 100 disconnects the first power branch line 110 into the first segment 10 and the second segment 20 that are independent of each other, and implements signal transmission between the first segment 10 and the second segment 20 through the jump structure 30, so that the first segment 10 and the second segment 20 may be separately located on two opposite sides of the second power branch line 120. In this way, an extension area of the first power branch line 110 is expanded, and an idle area is eliminated. An overall size of the feed stripline 100 in this application is controlled, and transportation and installation costs of the feed stripline 100 in this application are reduced.
Particularly, in the structure of the suspended stripline 300 provided in embodiments of this application, internal space of the cavity 200 is limited due to costs and a processing process. After the structure of the feed stripline 100 in this application is used, because a plane area ratio of the feed stripline 100 in this application is smaller, the size of the feed stripline 100 can be compressed on a premise of implementing a same tilt, so that an overall volume of the suspended stripline 300 in this application can also be controlled.
It may be understood that, because the feed stripline 100 in this application is used or included, the phase shifter 403, the array antenna 400, and the base station in this application each have a smaller volume, and transportation and installation costs are also reduced.
It may be understood that, for the plurality of power branch lines in the feed stripline 100, a specific quantity of power branch lines that are provided with the jump structure 30 and that cross another power branch line is not limited in this application. In other words, based on a specific extension length requirement of each power branch line in the feed stripline 100, a quantity of power branch lines, in the plurality of power branch lines, that are disconnected into two relative segments connected through the jump structure 30 may be randomly set. For example, the jump structure 30 may also be disposed for the third power branch line 130, so that the third power branch line 130 can extend on two opposite sides of the fourth power branch line 140, to improve area utilization on a side of the feed stripline 100 that is close to the second transmission segment 152 in this application. This application shows only an embodiment in which one of the plurality of power branch lines includes the jump structure 30.
In another aspect, for the first power branch line 110, a third segment (not shown in the figure) that is obtained through disconnection may be further disposed on the basis that the first power branch line 110 is disconnected into the first segment 10 and the second segment 20, where the third segment and the second segment 20 are disconnected from each other, and the third segment and the first segment 10 are located on one side of the second power branch line 120. In this case, a signal transmission function between the second segment 20 and the third segment may also be implemented through the jump structure 30, and a cabling form in which the first power branch line 110 crosses the second power branch line 120 twice is more conducive to arrangement of the first power branch line 110. It may be understood that, the first power branch line 110 may be further provided with disconnected structures such as a fourth segment and a fifth segment, and the first power branch line 110 may be used together with a plurality of jump structures 30 to implement crossing of the first power branch line 110 relative to the second power branch line 120. A specific disposition manner may be determined based on an extension length and a working requirement of the first power branch line 110.
In a possible implementation, both the signal input line 150 and the second power branch line 120 are located in a first plane (not shown in the figure), and the first segment 10 and the second segment 20 of the first power branch line 110 are also located in the first plane, to facilitate synchronous manufacturing of the first segment 10, the second segment 20, the signal input line 150, and the second power branch line 120. The jump structure 30 is at least partially located outside the first plane, to implement mutual isolation between the jump structure 30 and the second power branch line 120.
Refer to an implementation of the jump structure 30 shown in
In an implementation, the first pin 311, the second pin 312, and the connection segment 313 are of an integrated structure, that is, the jump structure 30 is integrally formed. In this case, connections between the connection segment 313 and the first pin 311 and the second pin 312 are more stable. This improves reliability of the first power branch line 110.
A specific shape of the jump structure 30 is not specially limited in embodiments of this application. The jump structure 30 may be an are that crosses the second power branch line 120, or may be in any curved shape. As long as a jump structure is isolated from the second power branch line 120 and implements an electrical connection between the first segment 10 and the second segment 20, the jump structure may be used as the jump structure in the feed stripline 100 in this application. In an embodiment, the connection segment 313 is further located in a second plane, and the first plane is parallel to the second plane. Therefore, in a process in which the connection segment 313 crosses the second power branch line 120, a height difference between the connection segment 313 and the second power branch line 120 is always stable. This helps control signal interference between the connection segment 313 and the second power branch line 120.
As shown in
In the embodiment of
In an implementation, the jumper 31 is elastic. When the first pin 311 and the second pin 312 of the jumper 31 respectively extend into the first opening 111 and the second opening 211, elastic deformation occurs between the first pin 311 and the second pin 312, and an elastic force F1 (refer to
It may be understood that, when elastic deformation occurs between the first pin 311 and the second pin 312, an elastic force F2 of stretching apart may be further formed between the first pin 311 and the second pin 312, and beneficial effects similar to those in the foregoing embodiment can also be implemented.
In another aspect, in addition to welding or butted conduction, the first pin 311 and the first segment 10 may alternatively be butted in manners such as buckling and bonding. Correspondingly, the second pin 312 and the second segment 20 may also be butted in manners such as buckling and bonding. This does not affect function implementation of the feed stripline 100 in this application.
In an embodiment, a line width of the connection segment 313 may be further set to be less than or equal to a line width of the first segment 10 and less than or equal to a line width of the second segment 10. This is used to control impedance matching between the jumper 31 and the first segment 10 and the second segment 20, to reduce a loss at the jumper 31 and improve overall electrical performance of the first power branch line 110.
In an implementation, a first coupling capacitor is formed between the first coupling end 321 and the first segment 10, and a second coupling capacitor is formed between the second coupling end 322 and the second segment 20. A capacitor structure is separately formed between the jump structure 30 and the first segment 10 and the second segment 10, and a coupling electrical connection is implemented in a form of the first coupling capacitor and the second coupling capacitor. In some other embodiments, coupling may alternatively be implemented between the first coupling end 321 and the first segment 10 and between the second coupling end 322 and the second segment 20 by forming inductance.
Refer to an embodiment of
Specifically, there are two isolation pads 324, and the two isolation pads 324 are separately located between the first coupling end 321 and the first segment 10 and between the second coupling end 322 and the second segment 20. The first coupling end 321 and the second end 12 of the first segment 10 are disposed at an interval, and the isolation pad 324 is configured to fasten and support the first coupling end 321. In an embodiment, the two isolation pads 324 are separately located at the first end 11 and the second end 21, the first coupling end 321 is fastened and connected to an isolation pad 324 located at the first end 11, and the second coupling end 322 is fastened and connected to an isolation pad 324 located at the second end 21.
The feed stripline 100 in the foregoing embodiment is expanded based on a structure of a sheet metal strip. In some other embodiments, the feed stripline 100 may alternatively be a PCB (printed circuit board) strip manufactured on a printed circuit board, or in another strip form.
Refer to structures shown in
For details, refer to
In some other embodiments, grooves (not shown in the figure) may be further disposed on the first external surface 41 and the second external surface 42 correspondingly. The groove is configured to accommodate lines of the feed stripline 100, so that at least a part of the lines of the feed stripline 100 are accommodated in the groove. In this case, a bottom surface of the feed stripline 100 is lower than the first external surface 41 and the second external surface 42. In some embodiments, when the feed stripline 100 is completely accommodated in the groove, a top surface of the feed stripline 100 is further flush with the first external surface 41 and the second external surface 42. These embodiments are all possible implementations of the PCB strip, and are also implementations in which the feed stripline 100 in this application is located on the printed circuit board 40.
Refer to
As shown in
In some other implementations, the via 43 may alternatively be separately constructed as a conductive via (not shown in the figure). In this case, the via 43 is filled with a conductive material, such as metal. When the connection segment 313 is attached to the second external surface 42, and the first segment 10 and the second segment 20 are attached to the first external surface 41, the connection segment 313 is electrically conducted to the first segment 10 and the second segment 20 through the conductive via. In some other embodiments, the jump structure 30 is disposed as the patch 32. The patch 32 is constructed as the second plane and is attached to the second external surface 42. The patch 32 performs signal transmission with the first segment 10 and the second segment 20 through coupling, so that a function of transmitting a signal by the first power branch line 110 is also implemented.
Refer to an embodiment shown in
In this case, on an extension path of the signal input line 150, the signal input line 150 and the input match line 152 jointly act and transmit an electrical signal sent by the signal input port 101. The second power match line 122 and the second power branch line 120 also jointly act to transmit the electrical signal to the second signal output port 1022. The first power match line 122 and the first power branch line 110 jointly cooperate with the jump structure 30, and transmit the electrical signal to the first signal output port 1021. As shown in
In an embodiment, the printed circuit board 40 may further have a plurality of vias 43. The plurality of vias 43 are all conductive vias, distributed at intervals along an extension direction of the signal input line 150, and configured to connect the signal input line 150 and the input match line 152, to form an electrical path between the signal input line 150 and the input match line 152, and implement impedance matching between the signal input line 150 and the input match line 152. The plurality of vias 43 may be further disposed between the first power branch line 110 and the first power match line 112, and/or between the second power branch line 120 and the second power match line 122, to form an electrical path between the two power branch lines and the match lines corresponding to the two power branch lines, and adjust respective equivalent dielectric constants of the two power branch lines.
For an embodiment, refer to
Because a plurality of vias 43 are disposed between the first power branch line 110 and the first power match line 112, and the vias 43 are conductive vias, the connection segment 313 that is constructed as a part of the line structure in the first power match line 112 may implement, through vias 43 distributed on two sides of the second power branch line 120, a function of transmitting an electrical signal on the first segment 10 to the second segment 20, and further implement transmission of the electrical signal on the first power branch line 110. A plurality of vias 43 are also disposed between the second power branch line 120 and the second power match line 122, and the plurality of vias 43 are distributed on two sides of the connection segment 313. In this case, after an electrical signal 123 on the third segment 123 is transferred to the second power branch line 120 through the via 43, the electrical signal crosses the connection segment 313 with the second power branch line 120, and is transferred to the fourth segment 124 through the via 43 on the other side of the connection segment 313, to implement transmission of the electrical signal on the second power match line 122.
Refer to structures shown in
The foregoing descriptions are merely specific embodiments of this application, but are not intended to limit the protection scope of this application. Any variation or replacement, for example, reducing or adding a mechanical part, and changing a shape of a mechanical part, readily figured out by a person skilled in the art within the technical scope disclosed in this application shall fall within the protection scope of this application. When no conflict occurs, embodiments of this application and features in embodiments may be mutually combined. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.
This application is a continuation of International Application No. PCT/CN2020/141100, filed on Dec. 29, 2020, the disclosure of which is hereby incorporated by reference in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/CN2020/141100 | Dec 2020 | US |
| Child | 18343114 | US |
