CN220585497U - Antenna device and terminal equipment - Google Patents
Antenna device and terminal equipment Download PDFInfo
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- CN220585497U CN220585497U CN202322222886.1U CN202322222886U CN220585497U CN 220585497 U CN220585497 U CN 220585497U CN 202322222886 U CN202322222886 U CN 202322222886U CN 220585497 U CN220585497 U CN 220585497U
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- 238000010586 diagram Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
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Abstract
The application discloses an antenna device and terminal equipment, wherein the antenna device comprises a radiator, a metal floor and a loading assembly, wherein the radiator comprises a first radiation branch, a second radiation branch and a third radiation branch, one end of the second radiation branch is connected with one end of the first radiation branch, one end of the third radiation branch is connected with the other end of the first radiation branch, the other end of the second radiation branch and the other end of the third radiation branch are both connected with the metal floor, and a gap is preset between the first radiation branch and the metal floor at intervals; one end of the loading assembly is connected with the first radiation branch, and the other end of the loading assembly is connected with the metal floor; the bandwidth of the antenna device can be effectively improved through the arrangement of the loading assembly, and then the performance of the antenna device is improved to enhance the communication capability.
Description
Technical Field
The application relates to the technical field of antennas, in particular to an antenna device and terminal equipment.
Background
The current unbalanced feed slot antenna belongs to a narrow-band antenna type, if the antenna miniaturization is required in an application scene, the antenna miniaturization is often accompanied by narrowing of impedance bandwidth, the bandwidth of the antenna is further reduced, and the communication capability of the communication antenna integrating the receiving and transmitting functions is reduced.
Thus, there is a need for improvement and advancement in the art.
Disclosure of Invention
The application provides an antenna device and terminal equipment, which can effectively increase the bandwidth of the antenna device and improve the communication capacity of the antenna device.
The application provides an antenna device, which comprises a radiator, a metal floor and a loading assembly; the radiator comprises a first radiation branch, a second radiation branch and a third radiation branch, wherein one end of the second radiation branch is connected with one end of the first radiation branch, and one end of the third radiation branch is connected with the other end of the first radiation branch; the other end of the second radiation branch and the other end of the third radiation branch are connected with the metal floor, and a gap is preset between the first radiation branch and the metal floor at intervals; one end of the loading component is connected with the first radiation branch, and the other end of the loading component is connected with the metal floor.
In some embodiments of the antenna device, the loading component comprises a resistor or an inductor or a capacitor.
In some embodiments, the antenna device, the loading assembly includes a resistor and an inductor, and a capacitor.
In some embodiments of the antenna device, a feeding point is disposed on the first radiating branch, a location where one end of the loading component is connected to the first radiating branch is a loading connection point, and the loading connection point and the feeding point are approximately symmetrical with each other with a center of the first radiating branch as a symmetry center.
In some embodiments, the radiator is co-planar with the metal floor.
In some embodiments, the radiator and the metal floor are in two different planes.
In some embodiments, the antenna device further comprises a microstrip feed line, the feed point being connected to the feed source by the microstrip feed line.
In some embodiments, the antenna device further comprises a fourth radiating stub and a fifth radiating stub, the loading assembly is disposed on the metal floor, the fourth radiating stub is configured to connect the first radiating stub and the loading assembly, and the fifth radiating stub is configured to connect the feed point and the feed port on the metal floor.
In some embodiments, the antenna device further comprises a second radiating branch, the second radiating branch comprises a first radiating part and a second radiating part, the first radiating part and the second radiating part are in an L shape, the first radiating part is used for being connected with one end of the first radiating branch, and the second radiating part is used for being welded on the metal floor.
In some embodiments, the third radiating branch includes a third radiating portion and a fourth radiating portion, the third radiating portion and the fourth radiating portion are L-shaped, the third radiating portion is configured to be connected to another end of the first radiating branch, and the fourth radiating portion is configured to be welded to the metal floor.
In the antenna device in some embodiments, a plurality of jacks are arranged on the metal floor, the other end of the second radiation branch is inserted into the corresponding jack to be connected with the metal floor, and the other end of the third radiation branch is inserted into the corresponding jack to be connected with the metal floor.
In some embodiments of the antenna device, the fourth radiating branch includes a fifth radiating portion and a sixth radiating portion, where the fifth radiating portion and the sixth radiating portion are L-shaped, the fifth radiating portion is used for being connected with the first radiating branch, and the sixth radiating portion is used for being welded on the metal floor and electrically connected with the loading assembly.
In some embodiments, the antenna device further comprises a third radiating part and a fourth radiating part, wherein the third radiating part is connected with the first radiating part, and the fourth radiating part is welded on the metal floor and connected with the feed source.
The application further provides the terminal equipment, which comprises the antenna device.
The antenna device and the terminal equipment provided by the application, wherein the antenna device comprises a radiator, a metal floor and a loading assembly, wherein the radiator comprises a first radiation branch, a second radiation branch and a third radiation branch, one end of the second radiation branch is connected with one end of the first radiation branch, one end of the third radiation branch is connected with the other end of the first radiation branch, the other end of the second radiation branch and the other end of the third radiation branch are both connected with the metal floor, and a gap is preset between the first radiation branch and the metal floor; one end of the loading assembly is connected with the first radiation branch, and the other end of the loading assembly is connected with the metal floor; according to the antenna device, the loading assembly is arranged to change the current distribution in the radiator, so that the purpose of impedance matching is achieved, the bandwidth of the antenna device is improved, and the performance of the antenna device is improved to enhance the communication capability.
Drawings
Technical solutions and other advantageous effects of the present application will be made apparent from the following detailed description of specific embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a first structure of an antenna device according to an embodiment of the present application.
Fig. 2 is a front view of a second structure of the antenna device according to the embodiment of the present application.
Fig. 3 is a top view of a second structure of an antenna device according to an embodiment of the present application.
Fig. 4 is a perspective view of a second structure of the antenna device according to the embodiment of the present application.
Fig. 5 is a schematic diagram of comparison of return loss before and after a loading component is disposed in an antenna apparatus according to an embodiment of the present application.
Fig. 6 is a schematic diagram of standing-wave ratio comparison before and after setting a loading component in the antenna device according to the embodiment of the present application.
Reference numerals:
11. a first radiation branch; 12. a second radiation branch; 13. a third radiation branch; 14. a fourth radiation branch; 15. fifth radiating branches;
121. a first radiation portion; 122. a second radiation portion; 131. a third radiation section; 132. a fourth radiation section; 141. a fifth radiation section; 142. a sixth radiation section; 151. a seventh radiation section; 152. an eighth radiation section;
20. a metal floor; 30. loading the assembly; 40. a microstrip feed line; 50. a substrate.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby a feature defining "first," "second," or the like, may explicitly or implicitly include one or more features, and in the description of the present utility model, a meaning of "a plurality" is two or more, unless otherwise specifically defined.
Referring to fig. 1, the present embodiment provides an antenna device including a radiator, a metal floor 20 and a loading assembly 30, wherein the radiator includes a first radiating branch 11, a second radiating branch 12 and a third radiating branch 13, one end of the second radiating branch 12 is connected with one end of the first radiating branch 11, one end of the third radiating branch 13 is connected with the other end of the first radiating branch 11, the other end of the second radiating branch 12 and the other end of the third radiating branch 13 are both connected with the metal floor 20, and a preset gap h is formed between the first radiating branch 11 and the metal floor 20; one end of the loading assembly 30 is connected with the first radiating stub 11, and the other end of the loading assembly 30 is connected with the metal floor 20.
The first radiation branch 11 in this embodiment is a resonance edge of the antenna device, and the second radiation branch 12 and the third radiation branch 13 are both connected with the ground, i.e. the metal floor 20, to form a short circuit edge; the loading assembly 30 in this embodiment may be a conductor; in particular, the loading component may be a pure resistor, an inductor or a capacitor, or a component with resistance, inductance and capacitance-resistance characteristics, which is not limited in this application. The loading assembly 30 may be disposed near the second radiation branch 12 or near the third radiation branch 13, and the position of the loading assembly 30 may be obtained by debugging, which is not limited in this embodiment. In the application, the loading assembly 30 is arranged to change the current distribution in the radiator, so that the purpose of impedance matching is achieved to improve the bandwidth of the antenna device, and the performance of the antenna device is improved to enhance the communication capability.
In some embodiments, the first radiating branch 11 is provided with a feeding point B, where one end of the loading component 30 is connected to the first radiating branch 11 at a loading connection point a, and the loading connection point a and the feeding point B are substantially symmetrical with respect to the center of the first radiating branch 11 as a symmetry center. That is, if the loading assembly 30 is disposed in the vicinity of the second radiating branch 12, the feeding point B may be disposed in the vicinity of the third radiating branch 13, and the corresponding feeding is close to the vicinity of the third radiating branch 13. The feeding position is set near the end of the first radiating stub 11 in the present embodiment, but not near the center of the first radiating stub 11, to form an unbalanced feeding manner. The loading assembly 30 is arranged near the first radiation branch 11, namely, the position of the resonance edge, which is centrally symmetrical, so that the distribution of current in the radiator can be changed, and the aim of impedance matching is achieved, thereby realizing the improvement of the bandwidth of the antenna device and further improving the performance of the antenna device. The impedance of the loading component 30 is adjusted according to the performance parameter of the antenna device by the communication system, which is not particularly limited in this application.
In some embodiments, the length of the first radiating stub 11, i.e. the resonant edge, in the present application is typically about half a wavelength.
As an example, the radiator of the antenna device in the present application may be disposed on the same plane as the metal floor 20, as shown in fig. 1. When the radiator and the metal floor 20 are arranged on the same plane, the antenna device can be connected with a feed through a microstrip feeder 40, the corresponding antenna device can also be provided with the microstrip feeder 40, and the feed point B of the first radiating branch 11 is connected with the feed through the microstrip feeder 40. When the radiator is in the same plane as the metal floor 20, the radiator may be carried by the substrate 50.
As an example, the antenna device in the present application may further be provided with a feeding point B at the location of the loading assembly 30 to form a parallel feed.
Referring to fig. 2, 3 and 4, as another embodiment, the radiator and the metal floor 20 may be located in different planes, i.e. different surfaces of the radiator and the metal floor 20 form a three-dimensional antenna structure, as shown in fig. 4. Specifically, when the radiator is disposed on the different surface of the metal floor 20, the antenna device further includes a fourth radiating branch 14 and a fifth radiating branch 15, the loading assembly 30 is disposed on the metal floor 20, the fourth radiating branch 14 is used for connecting the first radiating branch 11 and the loading assembly 30, the fifth radiating branch 15 is used for connecting the feeding point B and the feeding port on the metal floor 20, the loading assembly 30 is disposed by disposing the fourth radiating branch 14, and the feeding assembly is disposed by disposing the fifth radiating branch 15.
The second radiation branch 12 comprises a first radiation part 121 and a second radiation part 122, the first radiation part 121 and the second radiation part 122 are L-shaped, the first radiation part 121 is used for being connected with one end of the first radiation branch 11, and the second radiation part 122 is used for being welded on the metal floor 20; the third radiation branch 13 comprises a third radiation part 131 and a fourth radiation part 132, the third radiation part 131 and the fourth radiation part 132 are L-shaped, the third radiation part 131 is used for being connected with the other end of the first radiation branch 11, and the fourth radiation part 132 is used for being welded on the metal floor 20; that is, the second radiation stub 12 and the third radiation stub 13 are provided in an L-shape in the present embodiment so as to be welded with the metal floor 20, forming a patch-type connection structure.
Of course, in some embodiments, the second radiation branch 12 and the third radiation branch 13 may also be spliced on the metal floor 20 to form a spliced structure. Specifically, the metal floor 20 is provided with a plurality of jacks, the other end of the second radiation branch 12 is inserted into the corresponding jack to be connected with the metal floor 20, and the other end of the third radiation branch 13 is inserted into the corresponding jack to be connected with the metal floor 20.
In some embodiments, the fourth radiating branch 14 includes a fifth radiating portion 141 and a sixth radiating portion 142, the fifth radiating portion 141 and the sixth radiating portion 142 are L-shaped, the fifth radiating portion 141 is configured to be connected to the first radiating branch 11, and the sixth radiating portion 142 is configured to be welded to the metal floor 20 and electrically connected to the loading assembly 30; the fifth radiation branch 15 comprises a seventh radiation part 151 and an eighth radiation part 152, the seventh radiation part 151 and the eighth radiation part 152 are L-shaped, the seventh radiation part 151 is used for being connected with the first radiation branch 11, and the eighth radiation part 152 is used for being welded on the metal floor 20 and connected with a feed source; also, the fourth and fifth radiating branches 14 and 15 are provided in L-shapes in the present embodiment so that the fourth and fifth radiating branches 14 and 15 are welded to the metal floor 20.
Referring to fig. 5, fig. 5 is a schematic diagram illustrating comparison of return loss before and after the loading assembly 30 is disposed in the antenna device according to the embodiment of the present application. The return loss curve before loading is shown as a curve in fig. 5, the return loss curve after loading is shown as a curve B in fig. 5, and according to the graph, the return loss of the antenna device between the loading components 30 at different frequency points can be reduced by 5dB to 22dB.
Referring to fig. 6, fig. 6 is a schematic diagram illustrating standing-wave ratio comparison before and after the loading component 30 is disposed in the antenna device according to the embodiment of the present application. The standing-wave ratio curve before loading is shown as a C curve in FIG. 6, the standing-wave ratio curve after loading is shown as a D curve in FIG. 6, and according to the graph, if the antenna device is provided with the loading assembly 30, the radiation frequency range before the loading assembly 30 is provided is 2.41GHz-2.50GHz; the radiation frequency range of the antenna device after the loading assembly 30 is set to be 2.36GHz-2.54GHz, and compared with the radiation frequency range, the bandwidth can be effectively expanded by setting the loading assembly 30 in the application, so that the performance of the antenna device is improved.
The application further provides a terminal device, which includes the antenna device, and the antenna device can be used as an antenna device integrating transmission and reception in the terminal device, and because the antenna device is described in detail, the detailed description is omitted here.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The above describes the antenna device provided in the embodiments of the present application in detail, and specific examples are applied to illustrate the principles and embodiments of the present application, where the above description of the embodiments is only for helping to understand the technical solution and core ideas of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (14)
1. An antenna device, comprising:
the radiator comprises a first radiation branch, a second radiation branch and a third radiation branch, wherein one end of the second radiation branch is connected with one end of the first radiation branch, and one end of the third radiation branch is connected with the other end of the first radiation branch;
the other end of the second radiation branch and the other end of the third radiation branch are connected with the metal floor, and a preset gap is formed between the first radiation branch and the metal floor at intervals;
and one end of the loading assembly is connected with the first radiation branch, and the other end of the loading assembly is connected with the metal floor.
2. An antenna arrangement according to claim 1, characterized in that the loading means comprise a resistor or an inductance or a capacitance.
3. The antenna device of claim 1, wherein the loading assembly comprises a resistor and an inductor and a capacitor.
4. The antenna device according to claim 1, wherein a feeding point is provided on the first radiating branch, and a position where one end of the loading component is connected to the first radiating branch is a loading connection point, and the loading connection point and the feeding point are substantially symmetrical with respect to a center of the first radiating branch as a symmetry center.
5. The antenna device according to claim 4, wherein the radiator is in the same plane as the metal floor.
6. The antenna device according to claim 4, wherein the radiator and the metal floor are located in two different planes.
7. The antenna device of claim 5, further comprising a microstrip feed line, wherein the feed point is connected to the feed source by the microstrip feed line.
8. The antenna assembly of claim 6, further comprising a fourth radiating stub and a fifth radiating stub, the loading assembly disposed on the metal floor, the fourth radiating stub for connecting the first radiating stub and the loading assembly, the fifth radiating stub for connecting the feed point and a feed port on the metal floor.
9. The antenna device of claim 8, wherein the second radiating stub comprises a first radiating portion and a second radiating portion, the first radiating portion and the second radiating portion are L-shaped, the first radiating portion is configured to be connected to one end of the first radiating stub, and the second radiating portion is configured to be welded to the metal floor.
10. The antenna device according to claim 9, wherein the third radiating branch comprises a third radiating portion and a fourth radiating portion, the third radiating portion and the fourth radiating portion are L-shaped, the third radiating portion is used for being connected with the other end of the first radiating branch, and the fourth radiating portion is used for being welded on the metal floor.
11. The antenna device according to claim 8, wherein a plurality of insertion holes are formed in the metal floor, the other end of the second radiating branch is inserted into the corresponding insertion hole to be connected with the metal floor, and the other end of the third radiating branch is inserted into the corresponding insertion hole to be connected with the metal floor.
12. The antenna assembly of claim 11, wherein the fourth radiating stub includes a fifth radiating portion and a sixth radiating portion, the fifth radiating portion and the sixth radiating portion being L-shaped, the fifth radiating portion being configured to be connected to the first radiating stub, the sixth radiating portion being configured to be welded to the metal floor and electrically connected to the loading assembly.
13. The antenna device according to claim 12, wherein the fifth radiating branch comprises a seventh radiating portion and an eighth radiating portion, the seventh radiating portion and the eighth radiating portion are L-shaped, the seventh radiating portion is used for being connected with the first radiating branch, and the eighth radiating portion is used for being welded on the metal floor and connected with a feed source.
14. A terminal device comprising an antenna arrangement according to any of claims 1-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322222886.1U CN220585497U (en) | 2023-08-16 | 2023-08-16 | Antenna device and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322222886.1U CN220585497U (en) | 2023-08-16 | 2023-08-16 | Antenna device and terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220585497U true CN220585497U (en) | 2024-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322222886.1U Active CN220585497U (en) | 2023-08-16 | 2023-08-16 | Antenna device and terminal equipment |
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| Country | Link |
|---|---|
| CN (1) | CN220585497U (en) |
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2023
- 2023-08-16 CN CN202322222886.1U patent/CN220585497U/en active Active
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