CN216214113U - Antenna assembly and mobile terminal - Google Patents
Antenna assembly and mobile terminal Download PDFInfo
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- CN216214113U CN216214113U CN202122023473.1U CN202122023473U CN216214113U CN 216214113 U CN216214113 U CN 216214113U CN 202122023473 U CN202122023473 U CN 202122023473U CN 216214113 U CN216214113 U CN 216214113U
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- 239000003990 capacitor Substances 0.000 claims description 20
- 230000005855 radiation Effects 0.000 abstract description 4
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- 238000004891 communication Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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Abstract
The utility model provides an antenna assembly and a mobile terminal, comprising an antenna main body and a matching circuit; the antenna main body comprises a first feeding point, a common place and a second feeding point which are sequentially arranged at intervals; the matching circuit is electrically connected with the common place; the matching circuit comprises a multi-way switch chip, and each branch of the multi-way switch chip is grounded through different components; the matching circuit is configured to: when different branches of the multi-way switch chip are communicated, the working frequency of the antenna main body is different. The two feeding points are arranged on the antenna main body, so that the feeding strength of the combined antenna is ensured, and the radiation performance of the antenna is further ensured; meanwhile, the frequency band of the antenna can be adjusted in more modes through the multi-way switch chip of the matching circuit, so that the frequency band is widened. The problem of how to improve antenna performance is solved.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to an antenna assembly and a mobile terminal.
Background
With the development of communication technology, the number of antennas in a mobile terminal is increasing, which leads to the environment of the antennas being worse and worse, and further affects the performance of the antennas.
In order to improve the performance of the antenna, the current common technical means are as follows:
1. combining the antennas to improve the environment of the antennas in a manner of reducing the number of the antennas, thereby improving the performance of the antennas, for example, combining 2G, 4G, WiFi and GPS antennas to form a four-in-one antenna, and simultaneously realizing the functions of four antennas;
2. the performance of the antenna is improved by using the matching circuit, for example, an LC matching circuit is added, so that the working bandwidth of the antenna is widened to a certain extent, and the antenna is suitable for different environments.
Although antenna combination can improve the environment of the antenna to a certain extent, the antenna combination can not be realized by all antennas in the mobile terminal, and the combined antenna is very difficult to debug, so that the performance of each frequency band is difficult to achieve a better level; the mode of using the matching circuit not only increases the power consumption of the mobile terminal, but also causes electromagnetic interference to other antennas to a certain extent, and the existing conventional matching circuit has limited tuning to the antennas, which often cannot meet the requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an antenna assembly and a mobile terminal, so as to solve the problem of how to improve the performance of the antenna.
In order to solve the above technical problem, the present invention provides an antenna assembly, including an antenna main body and a matching circuit; the antenna main body comprises a first feeding point, a common place and a second feeding point which are sequentially arranged at intervals; the matching circuit is electrically connected with the common place; the matching circuit comprises a multi-way switch chip, and each branch of the multi-way switch chip is grounded through different components; the matching circuit is configured to: when different branches of the multi-way switch chip are communicated, the working frequency of the antenna main body is different.
Optionally, in the antenna assembly, the antenna main body includes a first branch, a second branch, a third branch, a fourth branch and a fifth branch, which are sequentially connected in a zigzag manner, where the first branch surrounds the fifth branch; the first feed point, the common location, and the second feed point are located at the third branch.
Optionally, in the antenna assembly, a minimum distance between the first feeding point, the common point, and the second feeding point is 1 mm.
Optionally, in the antenna assembly, the matching circuit further includes a main inductor, a main capacitor, and a main switch; one end of the main inductor is connected with the common place, and the other end of the main inductor is grounded; one end of the main capacitor is connected with the common place, and the other end of the main capacitor is connected with the main switch; and the other end of the main switch is connected with the input end of the multi-way switch chip.
Optionally, in the antenna assembly, the main inductor is an adjustable inductor, the main capacitor is an adjustable capacitor, and the main switch is a single-pole single-throw switch.
Optionally, in the antenna assembly, the multi-switch chip is a 16-way switch chip, and the 16-way branch may be simultaneously connected to at least one of the ways.
Optionally, in the antenna assembly, each branch of the multi-way switch chip is grounded through a capacitor, an inductor and/or a resistor.
In order to solve the above technical problem, the present invention provides a mobile terminal including the antenna assembly as described in any one of the above.
The utility model provides an antenna assembly and a mobile terminal, comprising an antenna main body and a matching circuit; the antenna main body comprises a first feeding point, a common place and a second feeding point which are sequentially arranged at intervals; the matching circuit is electrically connected with the common place; the matching circuit comprises a multi-way switch chip, and each branch of the multi-way switch chip is grounded through different components; the matching circuit is configured to: when different branches of the multi-way switch chip are communicated, the working frequency of the antenna main body is different. The two feeding points are arranged on the antenna main body, so that the feeding strength of the combined antenna is ensured, and the radiation performance of the antenna is further ensured; meanwhile, the frequency band of the antenna can be adjusted in more modes through the multi-way switch chip of the matching circuit, so that the frequency band is widened. The problem of how to improve antenna performance is solved.
Drawings
Fig. 1 is a schematic structural diagram of an antenna assembly provided in this embodiment;
fig. 2 is a schematic structural diagram of the antenna main body provided in this embodiment
Fig. 3 is a schematic structural diagram of the matching circuit provided in this embodiment;
wherein the reference numerals are as follows:
100-an antenna body; 101-a first feeding point; 102-a common site; 103-a second feeding point; 110-first branch; 120-second branch; 130-third branch; 140-fourth branch; 150-fifth branch; 200-matching circuit.
Detailed Description
The antenna assembly and the mobile terminal according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order, and it is to be understood that such structures as are used are interchangeable where appropriate. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The present embodiment provides an antenna assembly, as shown in fig. 1, including an antenna main body 100 and a matching circuit 200; the antenna body 100 includes a first feeding point 101, a common point 102 and a second feeding point 103 which are sequentially arranged at intervals; the matching circuit 200 is electrically connected to the common ground 102; the matching circuit 200 comprises a multi-way switch chip, and each branch of the multi-way switch chip is grounded through different components; the matching circuit 200 is configured to: when different branches of the multi-way switch chip are connected, the operating frequencies of the antenna main body 100 are different.
According to the antenna assembly provided by the embodiment, the two feeding points are arranged on the antenna main body, so that the feeding strength of the combined antenna is ensured, and the radiation performance of the antenna is further ensured; meanwhile, the frequency band of the antenna can be adjusted in more modes through the multi-way switch chip of the matching circuit, so that the frequency band is widened. The problem of how to improve antenna performance is solved.
Specifically, in this embodiment, as shown in fig. 2, the antenna main body 100 includes a first branch 110, a second branch 120, a third branch 130, a fourth branch 140, and a fifth branch 150, which are sequentially connected in a zigzag manner, wherein the first branch 110 surrounds the fifth branch 150; the first feeding point 101, the common ground point 102 and the second feeding point 103 are located at the third branch 130.
As can be seen from fig. 2, the antenna body 100 provided in this embodiment is a G-pattern antenna, which has high coupling efficiency, so that the bandwidth is wide and can cover low, medium and high frequency bands. In addition, through setting up two feed points on antenna main body 100, the power supply control to two feed points can make and use two feed points as the segmentation point at antenna main body 100, has formed two current loops to can realize the four unifications of four kinds of antennas of 2G wiFi, 4GWIFi, BT and GPS, effectively reduced the antenna quantity in the mobile terminal.
In order to reduce the noise of the antenna signal and improve the communication quality of the antenna, in this embodiment, the minimum distance between the first feeding point 101, the common point 102 and the second feeding point 103 is 1 mm.
Of course, in a specific application process, the antenna trace form of the antenna main body 100 connected to the matching circuit 200 is not limited to the G pattern provided in this embodiment, and may specifically be an antenna form such as IFA, LOOP, coupling parasitic, and the like. The key of the antenna main body of the utility model is that the antenna main body comprises a first feeding point, a common point and a second feeding point which are sequentially arranged at intervals and adjacently. A person skilled in the art can implement changes to other antenna trace forms on the basis provided by the present invention, so as to implement tuning of different frequency bands, where the changes to the antenna trace forms described herein include not only changes to antenna trace classifications, but also deformation of a Gpattern trace, and the like.
In addition, besides changing the wiring form of the antenna, the manufacturing process of the antenna can be changed, besides the adhesion of the traditional copper foil or gold foil with back glue, the antenna can also adopt the form of an FPC (flexible printed circuit) board, and even can be directly formed at the relative position of the shell of the mobile terminal by adopting a printing process or an LDS (laser direct structuring) process.
It should be noted that other antenna body structures may be designed without departing from the structure of the antenna body provided by the present invention, and the design also falls within the scope of the present invention.
Preferably, in the present embodiment, as shown in fig. 3, the matching circuit 200 further includes a main inductor L, a main capacitor C, and a main switch SPST; as shown in fig. 1, one end of the main inductor L is connected to the common ground 102, and the other end is grounded; one end of the main capacitor C is connected to the common ground 102, and the other end is connected to the main switch SPST; the other end of the main switch SPST is connected with the input end of the multi-way switch chip IC.
This is equivalent to that the matching circuit 200 can adjust the loading components of the antenna except for the multi-way switch chip IC, and can tune the antenna through the LC circuit formed by the main inductor L and the main capacitor C, so that the antenna has better performance.
Preferably, the main inductor L is an adjustable inductor, the main capacitor C is an adjustable capacitor, and the main switch SPST is a single-pole single-throw switch. The main inductor L and the main capacitor C are set to be adjustable, so that the tuning range of the formed LC circuit to the antenna is wider; the use of a single pole, single throw switch can reduce the manufacturing cost of the matching circuit 200.
In this embodiment, each branch of the multi-way switch chip IC is grounded through a capacitor, an inductor and/or a resistor. The capacitor, the inductor, or the resistor referred to herein may be a single component, or may be an equivalent component formed by combining a plurality of components. Other component arrangements are also within the scope of the utility model without departing from the spirit of the utility model.
In order to realize tuning of multiple frequency bands, in this embodiment, the multi-switch chip IC is a 16-way switch chip, and at least one of the 16 branches can be simultaneously connected. Specifically, at the same time, the multi-way switch chip IC can be controlled to turn on any one, two … … branches and even 16 branches, so as to realize tuning of different frequency bands.
Of course, in other application scenarios, the multi-switch chip IC may be selected as a 4-way switch chip, an 8-way switch chip, or only a part of the branches are grounded through the device under the 16-way switch chip, and other branches are suspended. Those skilled in the art can select the appropriate multiplexer chip according to the actual application requirements.
In a specific application, it can be understood by those skilled in the art that other circuits, such as LC circuits, amplifiers, filters, etc., may be provided in addition to the switching chip in the design of the matching circuit. The specific circuit structure and the selection of the components should be selected according to the actual situation, and the utility model is not limited.
It should be noted that other matching circuit designs without departing from the spirit of the present invention are also within the scope of the present invention.
The embodiment also provides a mobile terminal which comprises the antenna component provided by the embodiment.
The mobile terminal may include, but is not limited to, a mobile phone, a notebook, a GPS locator, and the like, specifically, the antenna main body is disposed on an inner surface of a housing of the mobile terminal, the matching circuit is integrated on the PCB through an SMT process of a printed circuit board, and the antenna main body and the matching circuit may be electrically connected through a spring or a coaxial cable, where a specific connection manner is well known to those skilled in the art and is not described herein.
In summary, the antenna assembly and the mobile terminal provided in this embodiment include an antenna main body and a matching circuit; the antenna main body comprises a first feeding point, a common place and a second feeding point which are sequentially arranged at intervals; the matching circuit is electrically connected with the common place; the matching circuit comprises a multi-way switch chip, and each branch of the multi-way switch chip is grounded through different components; the matching circuit is configured to: when different branches of the multi-way switch chip are communicated, the working frequency of the antenna main body is different. The two feeding points are arranged on the antenna main body, so that the feeding strength of the combined antenna is ensured, and the radiation performance of the antenna is further ensured; meanwhile, the frequency band of the antenna can be adjusted in more modes through the multi-way switch chip of the matching circuit, so that the frequency band is widened. The problem of how to improve antenna performance is solved.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (8)
1. An antenna assembly comprising an antenna body and a matching circuit; the antenna main body comprises a first feeding point, a common place and a second feeding point which are sequentially arranged at intervals; the matching circuit is electrically connected with the common place; the matching circuit comprises a multi-way switch chip, and each branch of the multi-way switch chip is grounded through different components; the matching circuit is configured to: when different branches of the multi-way switch chip are communicated, the working frequency of the antenna main body is different.
2. The antenna assembly of claim 1, wherein the antenna body comprises a first, second, third, fourth, and fifth leg connected in a zig-zag pattern, wherein the first leg surrounds the fifth leg; the first feed point, the common location, and the second feed point are located at the third branch.
3. The antenna assembly of claim 1, wherein a minimum distance between the first feed point, the common location, and the second feed point is 1 mm.
4. The antenna assembly of claim 1, wherein the matching circuit further comprises a main inductor, a main capacitor, and a main switch; one end of the main inductor is connected with the common place, and the other end of the main inductor is grounded; one end of the main capacitor is connected with the common place, and the other end of the main capacitor is connected with the main switch; and the other end of the main switch is connected with the input end of the multi-way switch chip.
5. The antenna assembly of claim 4, wherein the main inductor is an adjustable inductor, the main capacitor is an adjustable capacitor, and the main switch is a single-pole, single-throw switch.
6. The antenna assembly of claim 1, wherein the multiple switch chip is a 16-way switch chip, and the 16-way branch can simultaneously switch on at least one way.
7. The antenna assembly of claim 1, wherein each branch of the multiway switch chip is connected to ground through a capacitor, an inductor, and/or a resistor.
8. A mobile terminal, characterized in that it comprises an antenna assembly according to any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122023473.1U CN216214113U (en) | 2021-08-26 | 2021-08-26 | Antenna assembly and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122023473.1U CN216214113U (en) | 2021-08-26 | 2021-08-26 | Antenna assembly and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216214113U true CN216214113U (en) | 2022-04-05 |
Family
ID=80916339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122023473.1U Active CN216214113U (en) | 2021-08-26 | 2021-08-26 | Antenna assembly and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216214113U (en) |
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2021
- 2021-08-26 CN CN202122023473.1U patent/CN216214113U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: Room 2-101, No. 2 Qianmei Road, Dongkeng Town, Dongguan City, Guangdong Province, 523000 Patentee after: Dongguan Ruixiang XunTong Communication Technology Co.,Ltd. Address before: 523000 building 4, block a, No. 28, Yinying Road, Gaoying village, Dalang Town, Dongguan City, Guangdong Province Patentee before: Dongguan Ruixiang XunTong Communication Technology Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |