Patent Application
20250192450
The subject matter herein generally relates to antenna structures.
With the continuous development of wireless communication technology, a demand for antennas for wireless communication is increasing. Multi-input multi-output (MIMO) antenna system includes two or more antennas, compared with the traditional single antenna operation system, MIMO antenna system has a characteristics of improving a transmission speed, a receiving range, and a credibility of the system.
In MIMO antenna system, in order to decrease a coupling effect between the antennas, the conventional practice is mostly to increase the distance between the antennas to increase the isolation between the antennas, so as to reduce the coupling effect. However, with a development trend of a miniaturization of electronic equipment, an internal space of the electronic equipment is limited, resulting in the limited distance between the antennas, in order to meet isolation requirements between antennas, there is room for improvement.
Implementations of the present disclosure will now be described, by way of embodiments, with reference to the attached figures.
It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean “at least one”.
Several definitions that apply throughout this disclosure will now be presented.
The term “coupled” is defined as connected, whether directly or indirectly through intervening components, and is not necessarily limited to physical connections. The connection can be such that the objects are permanently connected or releasably connected. The term “comprising,” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series, and the like.
In one embodiment, the substrate 10 include a first surface 101 and a second surface 102 (as shown in
In one embodiment, clearance areas can be areas on the substrate 10 that are not poured copper, and corner areas can be areas on the substrate 10 that are enclosed by two adjacent sides.
In one embodiment, the first antenna 11 includes a first radiation portion 111, and the first radiation portion 111 is located in the first clearance area 1011. The second antenna 12 includes a second radiation portion 121, and the second radiation portion 121 is located in the second clearance area 1012. Because of an isolation between the two antennas (first antenna 11 and second antenna 12) is related to a distance between the two antennas, as shown in
In one embodiment, an antenna type of the first antenna 11 is different from an antenna type of the second antenna 12, and the first antenna 11 and the second antenna 12 are configured to transmit and receive first signals of the same frequency. For example, the first antenna 11 and the second line 12 are configured for transmitting and receiving signals from 2.4 GHz to 2.5 GHZ, and the first antenna 11 and the second antenna 12 can be used as wireless fidelity (Wi-Fi) antennas for transmitting and receiving Wi-Fi signals. Different types of antennas may be refer to the first antenna 11 and the second line 12 having different radiation mechanisms. For example, the first antenna 11 is an inverted-F antenna, and the second antenna 12 is a slot antenna.
The antenna module 1 includes two antennas with different radiation mechanisms, reducing ab interference between the two antennas, and the radiation portions of the two antenna are arranged in the clearance areas of the substrate 10, to improve an isolation between the two antennas in a space with a small distance.
Referring to
The third strip portion 1113 is a L-shaped portion, and the first strip portion 1111 and a long side of the third strip portion 1113 are form a T-shape portion. The first antenna 11 adopts the first radiation portion 111 of the above-mentioned structure to achieve a better radiation performance.
In one embodiment, the first end of the first strip portion 1111 is provided with a first signal feed point P1, the first signal feed point P1 is configured for feeding the second signals. The first signal feed point P1 may be coupled to a signal transceiver by a trace on the substrate 10, the signal transceiver has functions of transmitting signals through the first antenna 11, and processing signals received by the first antenna 11.
In one embodiment, a first feed portion for feeding the second signals may be arranged on the first surface 101, for example, the first feed portion can be printed on the first surface 101. The first feed portion is coupled to the first end of the first strip portion 1111. The first feed portion can be coupled to the signal transceiver via a trace.
In one embodiment, referring to
In one embodiment, a second end of the second strip portion 1112 is coupled to an end of the connecting portion 152, to reduce a coupling effect between the first antenna 11 and the second antenna 12.
Referring to
In one embodiment, the trapezoidal portion 1212 may include two right trapezoidal portions, straight waists of the two right trapezoidal portions are connected, and inclination angles of oblique waists of the two right trapezoidal portions are different. Referring to
In one embodiment, the second rectangular portion 1213 is provided with a second signal feed point P2, the second signal feed point P2 is configured for feeding the second signals. The second signal feed point P2 may be coupled to the signal transceiver by a trace on the substrate 10.
In one embodiment, a second feed portion for feeding the second signals may be arranged on the first surface 101, for example, the second feed portion can be printed on the first surface 101. The second feed portion may be coupled to a long side of the second rectangular portion 1213 away from the trapezoidal portion 1212. The second feed portion can be coupled to the signal transceiver via a trace. Shapes and sizes of the first feed portion and the second feed portion can be defined according to an actual application.
Referring to
In one embodiment, the first clearance area 1011 is arranged opposite to the third clearance area 1021, and the first clearance area 1011 and the third clearance area 1021 have the same size, for example, have the same length and width.
In one embodiment, the second clearance area 1012 is arranged opposite to the fourth clearance area 1022. The fourth clearance area 1022 may be a rectangular groove arranged on the second surface 102, and the projection of the fourth clearance area 1022 on the first surface 101 overlaps with the second radiating portion 121. For example, as shown in
In one embodiment, a length of the substrate 10 may be 135 mm, a maximum width of the substrate 10 may be 30 mm, and a size of the fourth clearance area 1022 is 18 mm*2 mm (length*width).
In one embodiment, referring to
Referring to
Referring to
Referring to
The electronic device 100 may transmit and receive wireless signals through the antenna module 1. The electronic device 100 may be a mobile phone, a tablet computer, a notebook computer, a smart wearable device, etc.
The embodiments shown and described above are only examples. Many details known in the field are neither shown nor described. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the detail, including in matters of shape, size, and arrangement of the parts within the principles of the present disclosure, up to and including the full extent established by the broad general meaning of the terms used in the claims. It will therefore be appreciated that the embodiments described above may be modified within the scope of the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202323335110.7 | Dec 2023 | CN | national |
