Patent Application
20240413520
The present disclosure relates to a wireless communication device.
In related art, a configuration including a plurality of antennas in a wireless communication device such as a notebook personal computer or a tablet personal computer is known (see, for example, PTL 1). The wireless communication device disclosed in PTL 1 includes an antenna for a wireless local area network (LAN) and an antenna for a wireless wide area network (WAN).
The present disclosure provides a wireless communication device that includes a plurality of antennas including a Global Positioning System (GPS) antenna and is capable of securing characteristics of the GPS antenna while securing characteristics of antennas other than the GPS antenna.
A wireless communication device according to one aspect of the present disclosure includes a first housing that contains metal and has a rectangular plate shape, a display panel that is arranged in the first housing, a second housing that contains metal and has a rectangular plate shape, an input unit that is arranged in the second housing, a connection portion that connects the first housing and the second housing, a first Global Positioning System (GPS) antenna that receives a signal from an artificial satellite, and a communication circuit that is connected to the first GPS antenna, and receives a signal from the first GPS antenna. The first housing has an end edge having a rectangular shape, the end edge includes a first end edge connected to the connection portion, a second end edge facing the first end edge, a third end edge connected to the first end edge and the second end edge, and a fourth end edge facing the third end edge, and the first housing is rotatably connected to the second housing around the connection portion. The first housing includes a first recess and a second recess that are formed at the second end edge and are recessed toward an inside of the first housing, the first housing further includes a third recess that is formed between a center of the third end edge in a longitudinal direction and the second end edge, and is recessed toward the inside of the first housing, and at least a part of the first GPS antenna is arranged in the third recess.
A wireless communication device according to another aspect of the present disclosure includes a first housing that contains metal and has a rectangular plate shape, a display panel that is arranged in the first housing, a second housing that contains metal and has a rectangular plate shape, an input unit that is arranged in the second housing, a connection portion that connects the first housing and the second housing, and a first Global Positioning System (GPS) antenna that receives a signal from an artificial satellite. The first housing has an end edge having a rectangular shape, the end edge includes a first end edge connected to the connection portion, a second end edge facing the first end edge, a third end edge connected to the first end edge and the second end edge, and a fourth end edge facing the third end edge, and the first housing is rotatably connected to the second housing around the connection portion. The first housing includes a first recess and a second recess that are formed in at least one of the second end edge, the third end edge, and the fourth end edge and are recessed toward the inside of the first housing, the first GPS antenna includes a feed element having a feedpoint, and a first ground line arranged to be separated from the feed element in a longitudinal direction of the feed element, the feed element is arranged in the first recess, and the first ground line is arranged in the second recess.
According to the present disclosure, it is possible to provide the wireless communication device that includes the plurality of antennas including the GPS antenna and can ensure the characteristics of the GPS antenna while ensuring the characteristics of the antennas other than the GPS antenna.
Hereinafter, an exemplary embodiment is specifically described with reference to the drawings.
Note that, the exemplary embodiment to be described below is intended to provide comprehensive or specific examples. Numerical values, shapes, materials, components, arrangement positions and connection modes of the components, steps, order of the steps, and the like illustrated in the following exemplary embodiment are merely examples, and are not intended to limit the present disclosure.
In addition, each of the drawings is a schematic view, and is not necessarily illustrated precisely. In addition, in the drawings, same reference marks are given to the same constituent members.
A wireless communication device according to an exemplary embodiment will be described.
First, an overall configuration of the wireless communication device according to the present exemplary embodiment will be described with reference to
As illustrated in
Connection portion 13 is a member that connects first portion 11 and second portion 12. As illustrated in
As illustrated in
First cover 14 is a member that functions as an outer shell of first portion 11. First cover 14 covers components other than a display surface of display panel 20 among the components of first portion 11. First cover 14 includes, for example, an insulating material such as resin in at least a part thereof. First cover 14 has a rectangular parallelepiped shape.
First housing 51 is a housing containing metal and having a rectangular plate shape. First housing 51 is rotatably connected to second housing 52 around connection portion 13. Consequently, a relative position of first housing 51 with respect to second housing 52 can be changed. That is, as illustrated in
In the present exemplary embodiment, first housing 51 is not a strict rectangular plate, but is a member having a substantially rectangular shape in plan view of first housing 51. First housing 51 has end edge 510 having a rectangular shape.
Rectangular end edge 510 of first housing 51 includes first end edge 511, second end edge 512, third end edge 513, and fourth end edge 514.
First end edge 511 is a portion including a portion, of rectangular end edge 510 of first housing 51, which is connected to connection portion 13.
Second end edge 512 is a portion, of rectangular end edge 510 of first housing 51, which faces first end edge 511. First recess 531 and second recess 532 that are recessed toward an inside of first housing 51 are provided in second end edge 512, and first protrusion 541 that is positioned between first recess 531 and second recess 532 and protrudes toward an outside of first housing 51. First recess 531 is formed between a center of second end edge 512 in a longitudinal direction and an end of second end edge 512 on third end edge 513 side. Second recess 532 is formed between the center of second end edge 512 in the longitudinal direction and an end of second end edge 512 on fourth end edge 514 side. In the present exemplary embodiment, first protrusion 541 is arranged at the center of second end edge 512 in the longitudinal direction.
Third end edge 513 is a portion, of rectangular end edge 510 of first housing 51, which is connected to first end edge 511 and second end edge 512. In the present exemplary embodiment, third recess 533 and fifth recess 535 that are recessed toward the inside of first housing 51 and second protrusion 542 that is positioned between third recess 533 and fifth recess 535 and protrudes toward the outside of first housing 51 are formed in third end edge 513. Third recess 533 is formed between a center of third end edge 513 in the longitudinal direction and an end of third end edge 513 on second end edge 512 side. Fifth recess 535 is formed between the center of third end edge 513 in the longitudinal direction and an end of third end edge 513 on first end edge 511 side. In the present exemplary embodiment, second protrusion 542 is arranged at the center of third end edge 513 in the longitudinal direction.
Fourth end edge 514 is a portion, of rectangular end edge 510 of first housing 51, which is connected to first end edge 511 and second end edge 512 and faces third end edge 513. In the present exemplary embodiment, fourth recess 534 and sixth recess 536 that are recessed toward the inside of first housing 51 and third protrusion 543 that is positioned between fourth recess 534 and sixth recess 536 and protrudes toward the outside of first housing 51 are formed in fourth end edge 514. Fourth recess 534 is formed between a center of fourth end edge 514 in the longitudinal direction and an end of fourth end edge 514 on second end edge 512 side. Sixth recess 536 is formed between the center of fourth end edge 514 in the longitudinal direction and an end of fourth end edge 514 on first end edge 511 side. In the present exemplary embodiment, third protrusion 543 is arranged at the center of fourth end edge 514 in the longitudinal direction.
Display panel 20 is a display device having a flat plate shape that displays an image. Display panel 20 is arranged in first housing 51. More specifically, display panel 20 is arranged at a substantially center of one principal surface of rectangular plate-shaped first housing 51 along the principal surface. Note that, although not illustrated in
First WWAN antenna 61 is a main antenna that performs wireless communication via a wireless WAN. First WWAN antenna 61 is an antenna corresponding to at least one of the fourth-generation mobile communication system (4G) and the fifth-generation mobile communication system (5G). In the present exemplary embodiment, first WWAN antenna 61 corresponds to both 4G and 5G. First WWAN antenna 61 is arranged in first recess 531 of first housing 51.
First WWAN cable 61a is a cable connected to first WWAN antenna 61. First WWAN cable 61a transmits a signal transmitted and received by first WWAN antenna 61.
Second WWAN antenna 62 is a sub antenna that performs wireless communication via a wireless WAN. Second WWAN antenna 62 is an antenna corresponding to at least one of 4G and 5G, and assists a function of first WWAN antenna 61. In the present exemplary embodiment, second WWAN antenna 62 corresponds to both 4G and 5G. In addition, second WWAN antenna 62 may include an antenna that performs wireless communication via a wireless LAN. Further, second WWAN antenna 62 may include an antenna that performs wireless communication based on the Bluetooth (registered trademark) standard. Second WWAN antenna 62 is arranged in second recess 532 of first housing 51.
Second WWAN cable 62a is a cable connected to second WWAN antenna 62. Second WWAN cable 62a transmits a signal transmitted and received by second WWAN antenna 62.
Third WWAN antenna 63 is a sub antenna that performs wireless communication via a wireless WAN. Third WWAN antenna 63 is an antenna corresponding to at least one of 4G and 5G, and assists the function of first WWAN antenna 61. In the present exemplary embodiment, third WWAN antenna 63 corresponds to both 4G and 5G. Third WWAN antenna 63 is arranged in fifth recess 535 of first housing 51.
Third WWAN cable 63a is a cable connected to third WWAN antenna 63. Third WWAN cable 63a transmits a signal transmitted and received by third WWAN antenna 63.
First GPS antenna 71 is a GPS antenna that receives a signal from an artificial satellite. In the present exemplary embodiment, first GPS antenna 71 receives signals in an L5 band (1176 MHz band) of the GPS. In addition, first GPS antenna 71 is also an antenna that performs wireless communication via a wireless WAN. First GPS antenna 71 is also used for at least one of 4G and 5G. At least a part of first GPS antenna 71 is arranged in third recess 533 of first housing 51.
First GPS cable 71a is a cable connected to first GPS antenna 71. First GPS cable 71a transmits a signal received by first GPS antenna 71.
Second GPS antenna 72 is a GPS antenna that receives a signal from an artificial satellite. In the present exemplary embodiment, second GPS antenna 72 receives signals in an L1 band (1575 MHz band), an L2 band (1227 MHz band), and an L5 band of the GPS. At least a part of second GPS antenna 72 is arranged in fourth recess 534 of first housing 51.
Second GPS cable 72a is a cable connected to second GPS antenna 72. Second GPS cable 72a transmits a signal received by second GPS antenna 72.
First WLAN antenna 81 is an antenna that performs wireless communication via a wireless LAN. In the present exemplary embodiment, first WLAN antenna 81 transmits and receives at least one signal of a 2.4 GHz band and a 5 GHz band of a wireless LAN. First WLAN antenna 81 is arranged in sixth recess 536 of first housing 51.
First WLAN cable 81a is a cable connected to first WLAN antenna 81. First WLAN cable 81a transmits a signal transmitted and received by first WLAN antenna 81.
The configurations of the antennas and the cables are not particularly limited as long as the antennas and the cables can transmit and receive signals of frequencies corresponding to applications. In the present exemplary embodiment, each antenna is a board antenna having an insulating board and a conductive film arranged on the insulating board, or a laser direst structuring antenna (LDS) having a conductive film arranged on a resin, and each cable is a coaxial cable.
In addition, each antenna has a flat plate shape arranged along a plane intersecting second housing 52 in a state where second end edge 512 of first housing 51 is closest to second housing 52 (that is, wireless communication device 10 is closed). In other words, each antenna has a flat plate shape arranged along a direction intersecting a principal surface (that is, a plane parallel to the display surface of display panel 20) of first housing 51. Consequently, the influence of second housing 52 on characteristics of each antenna can be reduced. In the present exemplary embodiment, each antenna has a flat plate shape arranged along a direction perpendicular to the principal surface of first housing 51. In other words, each antenna is arranged such that a projected area of each antenna on the principal surface of first housing 51 is minimized. Consequently, the influence of second housing 52 on the characteristics of each antenna can be minimized.
In the present exemplary embodiment, as illustrated in
As illustrated in
Second cover 15 is a member that functions as an outer shell of second portion 12. Second cover 15 covers components other than an operation surface of input unit 30 of second portion 12. Second cover 15 includes, for example, an insulating material such as resin in at least a part thereof. Second cover 15 has a rectangular parallelepiped shape.
Second housing 52 is a housing containing metal and having a rectangular plate shape. Second housing 52 is made of, for example, metal such as magnesium. Second housing 52 has the same potential as first housing 51. That is, the potential of second housing 52 is also the ground potential of wireless communication device 10 similarly to the potential of first housing 51.
In the present exemplary embodiment, second housing 52 is not a strict rectangular plate, but is a member having a substantially rectangular shape in plan view of second housing 52. Second housing 52 has end edge 520 having a rectangular shape.
Rectangular end edge 520 of second housing 52 includes first end edge 521, second end edge 522, third end edge 523, and fourth end edge 524.
First end edge 521 is a portion including a portion, of rectangular end edge 520 of second housing 52, which is connected to connection portion 13.
Second end edge 522 is a portion, of rectangular end edge 520 of second housing 52, which faces first end edge 521.
Third end edge 523 is a portion, of rectangular end edge 520 of second housing 52, which is connected to first end edge 521 and second end edge 522.
Fourth end edge 524 is a portion, of rectangular end edge 520 of second housing 52, which is connected to first end edge 521 and second end edge 522 and faces third end edge 523.
Input unit 30 is a component that is arranged in second housing 52 and is for a user of wireless communication device 10 to input information to wireless communication device 10. In the present exemplary embodiment, input unit 30 includes keyboard 31 and pointing device 32.
Relay board 21 is a board that relays communication between each antenna and communication circuit 22. First WWAN cable 61a, second WWAN cable 62a, third WWAN cable 63a, first GPS cable 71a, second GPS cable 72a, and first WLAN cable 81a are connected to relay board 21, and are connected to communication circuit 22. In the present exemplary embodiment, communication between antenna terminal 25 and communication circuit 22 is further relayed. Relay board 21 is arranged at a position closer to first hinge 41 than second hinge 42 of connection portion 13. That is, a distance from relay board 21 to first hinge 41 is shorter than a distance from relay board 21 to second hinge 42.
Communication circuit 22 is a circuit that is connected to first GPS antenna 71 and receives a signal from first GPS antenna 71. In the present exemplary embodiment, communication circuit 22 is connected to first WWAN antenna 61, second WWAN antenna 62, third WWAN antenna 63, and first WLAN antenna 81, and transmits and receives signals to and from first WWAN antenna 61, second WWAN antenna 62, third WWAN antenna 63, and first WLAN antenna 81. Further, communication circuit 22 is connected to second GPS antenna 72 and receives a signal from second GPS antenna 72. Communication circuit 22 may be arranged at the position closer to first hinge 41 than second hinge 42 of connection portion 13.
Control circuit 23 is a circuit that controls wireless communication device 10. Control circuit 23 controls display panel 20, communication circuit 22, and the like of wireless communication device 10 based on a signal from input unit 30 and the like. Control circuit 23 includes, for example, a central processing unit (CPU).
Storage circuit 24 is a circuit that stores programs, data, and the like for controlling wireless communication device 10. Storage circuit 24 may store other data. Storage circuit 24 includes, for example, a random access memory (RAM) and a read only memory (ROM).
Antenna terminal 25 is a terminal for transmitting and receiving a signal to and from an antenna arranged outside wireless communication device 10.
First hinge 41 and second hinge 42 of connection portion 13 are components that connect first housing 51 of first portion 11 and second housing 52 of second portion 12. As described above, connection portion 13 connects first portion 11 and second portion 12 by connecting first housing 51 and second housing 52.
First hinge 41 is arranged between a center of first end edge 511 of first housing 51 in the longitudinal direction and an end of first end edge 511 on third end edge 513 side. Second hinge 42 is arranged between the center of first end edge 511 of first housing 51 in the longitudinal direction and an end of first end edge 511 on fourth end edge 514 side. Each of first hinge 41 and second hinge 42 has a portion having a tubular shape, and each cable can be inserted into the tubular portion.
The arrangement of the antenna according to the present exemplary embodiment will be described. As described above, the plurality of antennas included in wireless communication device 10 according to the present exemplary embodiment are arranged in the plurality of recesses of first housing 51, respectively. Each recess is a cutout portion in which a conductive material forming first housing 51 is not arranged in plan view of first housing 51. The antennas are arranged in such recesses, and thus, it is possible to reduce the influence of first housing 51 containing the conductive material on the characteristics of each antenna. In addition, in first housing 51, the plurality of recesses are positioned in a bezel (frame) region outside a region where display panel 20 is arranged. Thus, it is possible to suppress deterioration in structural strength of first housing 51 in the region where display panel 20 is arranged. In addition, since the bezel region can be effectively used by arranging the plurality of antennas in the bezel region, space saving of wireless communication device 10 can be achieved as compared with a case where a region for arranging the plurality of antennas is separately provided.
As described above, the influence of first housing 51 on the antenna characteristics can be suppressed by forming the recess in first housing 51 and arranging the antenna in the recess, but the influence of first housing 51 and the like on the antenna characteristics varies in accordance with the position of the recess. In addition, a length of the cable from the antenna to communication circuit 22 varies in accordance with the position of the recess.
First, a relationship between the position of the recess and the antenna characteristics will be described. Wireless communication device 10 is often arranged on a conductive member such as a metal desk and is used. In addition, wireless communication device 10 is often used in a state illustrated in
In addition, in general, second end edge 512 in which first recess 531 and second recess 532 are formed is often longer than third end edge 513 in which third recess 533 and fifth recess 535 are formed and fourth end edge 514 in which fourth recess 534 and sixth recess 536 are formed. Thus, first recess 531 and second recess 532 can often secure a larger space than the other recesses.
Accordingly, most advantageous positions for obtaining desired characteristics of the antenna are first recess 531 and second recess 532, next most advantageous positions are third recess 533 and fourth recess 534, and most disadvantageous positions are fifth recess 535 and sixth recess 536.
Next, the length of the cable from the antenna to communication circuit 22 will be described. The longer the length of the cable, the greater the attenuation of the signal and the more susceptible to noise. Thus, it is necessary to determine the arrangement of the antenna in consideration of both the antenna characteristics and the length of the cable.
In the present exemplary embodiment, all the plurality of cables connecting the plurality of antennas and relay board 21 are inserted into first hinge 41. Consequently, it is possible to prevent the cables from being caught between first portion 11 and second portion 12 and from being damaged. In addition, since relay board 21 is arranged at the position closer to first hinge 41 than second hinge 42, the length of each cable in second housing 52 can be reduced by inserting each cable into first hinge 41.
Accordingly, in the present exemplary embodiment, from the viewpoint of the length of the cable, the recess close to first hinge 41 is more advantageous than the recess far from first hinge 41. That is, first recess 531 is more advantageous than second recess 532, third recess 533 is more advantageous than fourth recess 534, and fifth recess 535 is more advantageous than sixth recess 536.
As described above, among the plurality of recesses formed in first housing 51, one of the plurality of wireless WAN antennas required to have high antenna characteristics in a wide frequency bandwidth including a relatively low frequency bandwidth is arranged in first recess 531. As the frequency bandwidth decreases, a larger antenna is required. However, since a relatively large space can be secured in first recess 531 as described above, a relatively large antenna for a low frequency bandwidth can be arranged. In the present exemplary embodiment, first WWAN antenna 61 that is a main antenna among the plurality of wireless WAN antennas is arranged in first recess 531.
Second WWAN antenna 62 that is a sub antenna among the plurality of wireless WAN antennas is arranged in second recess 532 that is next advantageous to first recess 531.
First GPS antenna 71 and second GPS antenna 72 that are required to have antenna characteristics in a relatively low frequency bandwidth are arranged in third recess 533 and fourth recess 534, respectively. First GPS antenna 71 and second GPS antenna 72 receive signals from an artificial satellite. Thus, wireless communication device 10 is positioned vertically above at the time of using the wireless communication device, and thus, the wireless communication device is less likely to be influenced by a conductive member, the body of the user, and the like arranged around the wireless communication device. Accordingly, as in the present exemplary embodiment, the GPS antennas are arranged in third recess 533 and fourth recess 534 positioned vertically above at the time of using wireless communication device 10, and thus, it is possible to suppress deterioration in antenna characteristics. In the present exemplary embodiment, since first GPS antenna 71 also serves as a WWAN antenna that performs wireless communication via a wireless WAN, first GPS antenna 71 is arranged in third recess 533 that is more advantageous than fourth recess 534.
Of third WWAN antenna 63 and first WLAN antenna 81, third WWAN antenna 63 that is required to have high antenna characteristics in a wide frequency bandwidth including a relatively low frequency bandwidth is arranged in fifth recess 535. First WLAN antenna 81 is arranged in remaining sixth recess 536.
As described above, the plurality of antennas are arranged in the plurality of recesses, respectively, and thus, desired characteristics can be obtained in each antenna. In particular, as in the present exemplary embodiment, in order to enhance the characteristics of the WWAN antenna, even in a case where the WWAN antennas are arranged in both first recess 531 and second recess 532, the GPS antenna having desired characteristics can be realized by arranging two GPS antennas in third recess 533 and fourth recess 534. That is, in the present exemplary embodiment, it is possible to realize wireless communication device 10 including the plurality of antennas including the GPS antenna and can secure the characteristics of the GPS antenna while securing the characteristics of the antennas other than the GPS antenna.
A configuration of the GPS antenna according to the present exemplary embodiment will be described with reference to
As illustrated in
Board 724 is an insulating board serving as a base of second GPS antenna 72. For example, a glass epoxy board or the like can be used as board 724.
Feed element 721 is a conductive member having feedpoint 720. In the present exemplary embodiment, feed element 721 is a conductive film formed in a predetermined shape on board 724. Feedpoint 720 is a point to which a core wire of second GPS cable 72a is connected. Note that, in
Ground line 722 is a conductive member arranged to be separated from feed element 721 in the longitudinal direction (that is, vertical direction in
Ground line 722 is grounded by being electrically connected to first housing 51. Specifically, ground line 722 is electrically connected to first housing 51 via conductive screw 93. That is, ground line 722 is electrically connected to feed element 721 via screw 93, first housing 51, and screw 92. Since an electrical length between ground line 722 and feed element 721 is relatively short (that is, less than or equal to an effective wavelength of an electromagnetic wave of 1575 MHz), ground line 722 can function as a part of second GPS antenna 72. In the present exemplary embodiment, an electrical length from a point of feed element 721 electrically connected to first housing 51 (that is, a contact point between feed element 721 and screw 92) to a point electrically connected to first housing 51 on ground line 722 (that is, a contact point between ground line 722 and screw 93) is less than or equal to ½ of an effective wavelength of an electromagnetic wave received by second GPS antenna 72. In the present exemplary embodiment, in order to realize such a configuration, ground line 722 is electrically connected to first housing 51 by screw 93 at a position closer to feed element 721 than a center of ground line 722 in the longitudinal direction. In addition, feed element 721 is electrically connected to first housing 51 by screw 92 at a position closer to ground line 722 than a center of feed element 721 in the longitudinal direction. Note that, in the present application, the “effective wavelength of the electromagnetic wave” means a wavelength of the electromagnetic wave propagating in a medium. The wavelength of the electromagnetic wave propagating in the medium is shorter than a wavelength of an electromagnetic wave propagating in vacuum in accordance with a dielectric constant of the medium. This shortened wavelength is referred to as an “effective wavelength”. In
A length of ground line 722 in the longitudinal direction (that is, vertical direction in
Ground line 723 is a conductive member arranged to be separated from feed element 721 in the longitudinal direction (that is, vertical direction in
As illustrated in
Board 813 is an insulating board serving as a base of first WLAN antenna 81. For example, a glass epoxy board or the like can be used as board 813.
Feed element 811 is a conductive member having feedpoint 810. In the present exemplary embodiment, feed element 811 is a conductive film formed in a predetermined shape on board 813. Feedpoint 810 is a point to which a core wire of first WLAN cable 81a is connected.
Ground line 812 is a conductive member arranged to be separated from feed element 811 in the longitudinal direction (that is, vertical direction in
Hereinafter, an effect of second GPS antenna 72 will be described with reference to
As illustrated in
In addition, as illustrated in
Although the present disclosure has been described above based on the exemplary embodiment, the present disclosure is not limited to the above exemplary embodiment. Various modifications made on the above exemplary embodiment by those skilled in the art may be included in the present disclosure, as long as such modifications fall within the scope not departing from the spirit of the present disclosure.
For example, wireless communication device 10 according to the above exemplary embodiment includes relay board 21, but may not include relay board 21. That is, the cable connected to each antenna may be directly connected to communication circuit 22.
In addition, in the above exemplary embodiment, although second GPS antenna 72 has been described in detail, first GPS antenna 71 may have the same configuration as second GPS antenna 72. That is, the first GPS antenna may include a feed element having a feedpoint and a ground line arranged to be separated from the feed element in the longitudinal direction of the feed element. In addition, the ground line may be arranged in fifth recess 535.
In addition, first GPS antenna 71 and second GPS antenna 72 may be arranged in a recess other than the third recess and the fourth recess. That is, a first recess and a second recess that are recessed toward the inside of first housing 51 may be formed in at least one of second end edge 512, third end edge 513, and fourth end edge 514 of first housing 51, and first GPS antenna 71 or second GPS antenna 72 may be arranged in the first recess or the second recess. For example, in a case where second GPS antenna 72 is arranged in the first recess, feed element 721 may be arranged in the first recess, and ground line 722 may be arranged in the second recess. Here, ground line 722 is an example of the first ground line that is arranged apart from feed element 721 in the longitudinal direction of feed element 721 and is arranged in the second recess.
In addition, ground line 723 of second GPS antenna 72 may be arranged in the first recess. In this case, feed element 721 is arranged between ground line 722 and ground line 723. Here, ground line 723 is an example of the second ground line that is arranged to be separated from the feed element in the longitudinal direction of feed element 721 and is arranged in the first recess.
In addition, in the above exemplary embodiment, although relay board 21 is arranged at the position closer to first hinge 41 than second hinge 42, in a case where relay board 21 is closer to second hinge 42, each cable may be introduced into second housing 52 via second hinge 42. In this case, the recess closer to second hinge 42 is more advantageous for the antenna.
In addition, in the above exemplary embodiment, although connection portion 13 has only first hinge 41 and second hinge 42, connection portion 13 may have three or more hinges.
In addition, in the above exemplary embodiment, wireless communication device 10 is a notebook PC, but may be a wireless communication device other than the notebook PC. For example, wireless communication device 10 may be a clamshell smartphone or the like.
In addition, any configuration achieved by any combination of the components and the functions in the exemplary embodiment within the scope not departing from the gist of the present disclosure also falls within the scope of the present disclosure.
The antenna device according to the present disclosure includes two antennas, and can be used in a communication terminal, such as a tablet terminal, a notebook PC, or a smartphone, as an antenna device capable of achieving a reduction in size while ensuring isolation between the two antennas.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2022-041108 | Mar 2022 | JP | national |
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/JP2022/021501 | May 2022 | WO |
| Child | 18813442 | US |
