CN216120712U - Antenna system and mobile terminal based on metal frame - Google Patents
Antenna system and mobile terminal based on metal frame Download PDFInfo
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- CN216120712U CN216120712U CN202121945663.2U CN202121945663U CN216120712U CN 216120712 U CN216120712 U CN 216120712U CN 202121945663 U CN202121945663 U CN 202121945663U CN 216120712 U CN216120712 U CN 216120712U
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- antenna
- metal frame
- antenna system
- antenna structure
- mobile terminal
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Abstract
The utility model discloses an antenna system and a mobile terminal based on a metal frame, wherein the antenna system comprises the metal frame, a first antenna structure and a first grounding structure corresponding to the first antenna structure are respectively arranged on the metal frame, a second antenna structure and a second feeding structure corresponding to the second antenna structure are also arranged on the metal frame, a hole structure is arranged at the position of the first grounding structure, and the second feeding structure is arranged in the hole structure. The second antenna structure feeds power at the grounding position of the first antenna structure, so that the number of the antennas can be increased on the premise of not increasing the requirement of antenna clearance, and the layout of the original antenna is hardly influenced.
Description
Technical Field
The utility model relates to the technical field of communication, in particular to an antenna system based on a metal frame and a mobile terminal.
Background
With the development of terminal product miniaturization, communication system diversification and chip frequency band integration, the clearance environment of the antenna in the terminal product is more and more severe, and the situation that a plurality of antennas are integrated at the same position often exists. Correspondingly, the antenna headroom is compressed mainly through an ultra-small headroom antenna, a multi-band multiplexing antenna, a switch-adjustable antenna or a left-handed material antenna, and the effect of obtaining more band resources in the same space is achieved by using a time division multiplexing technology.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the antenna system and the mobile terminal based on the metal frame are provided, and the number of the antennas can be increased on the premise of not increasing the requirement of antenna clearance.
In order to solve the technical problems, the utility model adopts the technical scheme that:
the utility model provides an antenna system based on metal frame, includes the metal frame, be equipped with first antenna structure on the metal frame respectively and with the first ground structure that first antenna structure corresponds, still be equipped with second antenna structure on the metal frame and with the second feed structure that second antenna structure corresponds, first ground structure department is equipped with the pore structure, second feed structure set up in the pore structure.
Further, the second antenna structure is an LDS antenna.
Furthermore, a paint layer is arranged on the second antenna structure.
Furthermore, the second antenna structure is in a shape of a long strip, a T shape or a bow shape.
Further, the hole structure is arranged in a laser forming mode.
Furthermore, the metal frame also comprises a PCB board, and the PCB board is arranged in the metal frame.
Furthermore, a first feed structure corresponding to the first antenna structure is further arranged on the metal frame.
The utility model adopts another technical scheme that:
a mobile terminal comprises the antenna system based on the metal frame.
Further, the mobile terminal is a tablet computer or a mobile phone.
The utility model has the beneficial effects that: the second antenna structure is fed at the grounding position of the first antenna structure, so that the number of the antennas can be increased on the premise of not increasing the requirement of antenna clearance, and the layout of the original antenna (the first antenna structure) and the like are hardly influenced.
Drawings
Fig. 1 is a schematic structural diagram of a mobile terminal according to a first embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 3 is an S parameter diagram of an antenna system based on a metal frame according to a first embodiment of the present invention;
fig. 4 is an antenna pattern of an antenna system based on a metal frame according to a first embodiment of the present invention.
Description of reference numerals:
1. a metal frame; 2. a PCB board; 3. a first ground structure; 4. a second antenna structure; 5. a second feed structure; 6. a first feed structure.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the utility model is as follows: and the second antenna structure is fed at the grounding position of the first antenna structure, so that the number of the antennas can be increased on the premise of not increasing the requirement of antenna clearance.
Referring to fig. 1 and 2, an antenna system based on a metal frame includes a metal frame 1, a first antenna structure and a first ground structure 3 corresponding to the first antenna structure are respectively disposed on the metal frame 1, a second antenna structure 4 and a second feed structure 5 corresponding to the second antenna structure 4 are further disposed on the metal frame 1, a hole structure is disposed on the first ground structure 3, and the second feed structure 5 is disposed in the hole structure.
From the above description, the beneficial effects of the present invention are: the second antenna structure is fed at the grounding position of the first antenna structure, so that the number of the antennas can be increased on the premise of not increasing the requirement of antenna clearance, and the layout of the original antenna (the first antenna structure) and the like are hardly influenced. The first antenna structure may be disposed at the top, bottom or corner of the metal bezel 1.
Further, the second antenna structure 4 is an LDS antenna.
Further, a paint layer is disposed on the second antenna structure 4.
As can be seen from the above description, the paint layer may protect the second antenna structure.
Further, the second antenna structure 4 is in the shape of a long strip, a T-shape or a bow.
As is clear from the above description, the shape of the second antenna structure 4 can be set as desired.
Further, the hole structure is arranged in a laser forming mode.
Further, still include PCB board 2, PCB board 2 set up in metal frame 1.
Further, a first feeding structure 6 corresponding to the first antenna structure is further disposed on the metal frame 1.
The utility model adopts another technical scheme that:
a mobile terminal comprises the antenna system based on the metal frame 1.
As can be seen from the above description, the antenna system is suitable for a mobile terminal having a metal bezel 1.
Further, the mobile terminal is a tablet computer or a mobile phone.
Referring to fig. 1 to 4, a first embodiment of the present invention is:
a mobile terminal, as shown in fig. 1, includes an antenna system based on a metal frame 1, and the mobile terminal may be a tablet computer or a mobile phone. In this embodiment, the metal frame 1 is rectangular.
As shown in fig. 2, the antenna system based on the metal frame 1 includes a metal frame 1 and a PCB 2, and the PCB 2 is disposed in the metal frame 1. The metal frame 1 is provided with a first antenna structure, a first grounding structure 3 and a first feeding structure 6 corresponding to the first antenna structure, and the first antenna structure can be arranged at the top, the bottom or the corner of the metal frame 1. The metal frame 1 is further provided with a second antenna structure 4 and a second feeding structure 5 corresponding to the second antenna structure 4, the first grounding structure 3 is provided with a hole structure, the second feeding structure 5 is arranged in the hole structure, the second feeding structure 5 can be a feeder line, and the feeder line penetrates through the hole structure and then is electrically connected with the PCB 2. In this embodiment, the hole structure is formed by laser. The second antenna structure 4 may be an LDS antenna, and a paint layer is disposed on the second antenna structure 4. The shape of the second antenna structure 4 may be set as required, and may be a long strip, a T shape, or a "bow" shape.
In this embodiment, when the second antenna structure needs to be disposed on the metal frame, a hole is first drilled at the first grounding structure of the first antenna structure to obtain a hole structure, and then the second feeding structure of the second antenna structure is embedded into the hole structure; encapsulating the metal frame to form an insulating layer; and the LDS second antenna structure is arranged on the insulating layer, and finally, the second antenna structure is painted.
Because the current direction of the second antenna structure in the antenna system based on the metal frame of the embodiment is just opposite to the current direction of the first antenna structure, the first antenna structure and the second antenna structure can ensure good isolation, thereby ensuring the performance of the antenna system.
Fig. 3 is an S parameter diagram of the antenna system of this embodiment, and it can be seen from the diagram that the-10 dB bandwidth of the second antenna structure can reach 200M, the isolation can reach-50 dB under the condition that the requirement for the newly added headroom is almost zero and the distance between the newly added headroom and the original first antenna structure is zero, and the antenna system has almost no influence on the antenna layout of the original mobile terminal.
Fig. 4 is an antenna pattern of the antenna system of the present embodiment, and it can be seen from the figure that the coverage effect of the antenna system meets the requirements of the mobile terminal product.
In summary, the antenna system and the mobile terminal based on the metal frame provided by the utility model can increase the number of antennas without increasing the requirement of antenna headroom, and have almost no influence on the layout of the original antennas.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (9)
1. The utility model provides an antenna system based on metal frame, includes the metal frame, be equipped with first antenna structure on the metal frame respectively and with the first ground structure that first antenna structure corresponds, its characterized in that, still be equipped with second antenna structure on the metal frame and with the second feed structure that second antenna structure corresponds, first ground structure department is equipped with the pore structure, the second feed structure set up in the pore structure.
2. The metal bezel-based antenna system of claim 1, wherein the second antenna structure is an LDS antenna.
3. The metal bezel-based antenna system as recited in claim 1, wherein the second antenna structure is provided with a paint layer.
4. The metal bezel-based antenna system of claim 1, wherein the second antenna structure is in the shape of a bar, a T-shape, or a "bow" shape.
5. The metal bezel-based antenna system as recited in claim 1, wherein the aperture structure is laser-formed.
6. The metal bezel-based antenna system as recited in claim 1, further comprising a PCB board disposed within the metal bezel.
7. The metal bezel-based antenna system as recited in claim 1, wherein a first feed structure corresponding to the first antenna structure is further disposed on the metal bezel.
8. A mobile terminal characterized by comprising the metal bezel-based antenna system as recited in any of claims 1-7.
9. The mobile terminal according to claim 8, wherein the mobile terminal is a tablet computer or a mobile phone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121945663.2U CN216120712U (en) | 2021-08-18 | 2021-08-18 | Antenna system and mobile terminal based on metal frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121945663.2U CN216120712U (en) | 2021-08-18 | 2021-08-18 | Antenna system and mobile terminal based on metal frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216120712U true CN216120712U (en) | 2022-03-22 |
Family
ID=80727002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121945663.2U Active CN216120712U (en) | 2021-08-18 | 2021-08-18 | Antenna system and mobile terminal based on metal frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216120712U (en) |
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2021
- 2021-08-18 CN CN202121945663.2U patent/CN216120712U/en active Active
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