CN218498362U - Metal antenna and communication module thereof - Google Patents
Metal antenna and communication module thereof Download PDFInfo
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- CN218498362U CN218498362U CN202222602521.7U CN202222602521U CN218498362U CN 218498362 U CN218498362 U CN 218498362U CN 202222602521 U CN202222602521 U CN 202222602521U CN 218498362 U CN218498362 U CN 218498362U
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Abstract
The utility model provides a metal antenna and a communication module thereof, the metal antenna is used for the communication module, the metal antenna comprises a conductive surface covering the circuit board of the communication module and a plurality of antenna supporting parts for supporting the conductive surface; the antenna supporting part comprises an antenna feed point, an antenna grounding point and an antenna radiation part, one end of the antenna feed point is connected with a communication circuit of the communication module, and the antenna grounding point is connected with a grounding point on the communication circuit; the metal antenna has a conductive path, and the antenna radiation portion is located at an end of the conductive path. The metal antenna covering circuit board of the utility model can protect the parts on the whole circuit board and ensure good communication performance; by arranging the antenna radiation part, the omni-directional property of the antenna can be better, the radiation energy of the antenna is more, and the communication distance is longer; the metal antenna effectively reduces the volume and the cost of the communication module.
Description
Technical Field
The utility model relates to the field of communication technology, more specifically says, relates to a metal antenna and communication module thereof.
Background
In the trend of interconnection of everything, a communication module is an essential part of electronic devices as a communication device. In our daily life, various intelligent household appliances such as a network set top box, a tablet personal computer, an intelligent television, security monitoring, a robot, an AI sound box and the like need a wireless communication module to receive or send signals.
In the communication module, the antenna needs to be designed separately, and a PCB on-board antenna or an external antenna is generally adopted. However, with the popularization of communication of the internet of things, developers have made higher requirements on the volume, cost, antenna performance, convenience in installation and the like of communication equipment, and the antennas cannot meet the requirements of some communication equipment.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the present invention is to provide an improved metal antenna and a communication module thereof.
The utility model provides a technical scheme that its technical problem adopted as follows: a metal antenna for a communication module, the metal antenna comprising a conductive surface overlying a circuit board of the communication module and a plurality of antenna supports for supporting the conductive surface;
the antenna supporting part comprises an antenna feed point, an antenna grounding point and an antenna radiation part, one end of the antenna feed point is connected with a communication circuit of the communication module, and the antenna grounding point is connected with a grounding point on the communication circuit; the metal antenna has a conductive path, and the antenna radiation portion is located at an end of the conductive path.
In some embodiments, the conductive surface has a hollow groove, an antenna element is formed on the periphery of the hollow groove, one end of the antenna element is connected to the antenna radiation portion, and the other end of the antenna element is connected to the other end of the antenna feed point.
In some embodiments, the shape of the antenna element is a strip shape, or a shape formed by bending the strip shape.
In some embodiments, the antenna element has a stiffener formed thereon.
In some embodiments, the conductive path is formed along the antenna element, the antenna radiating portion, starting from the antenna feed point.
In some embodiments, the antenna radiating portion, the antenna ground point and the antenna feed point are separated by a gap.
In some embodiments, the antenna ground point comprises a plurality of antenna ground points, the antenna ground point being adjacent to the antenna feed point and connected to the antenna element at a first location, the first location being a non-end location of the antenna element.
In some embodiments, the first position is determined by an operating frequency of the metal antenna.
The utility model also provides a communication module, including circuit board, communication circuit and any one of the aforesaid metal antenna, communication circuit sets up on the circuit board, metal antenna includes that the antenna presents a little, metal antenna passes through the antenna presents a little with communication circuit connects.
In some embodiments, the communication module further comprises at least processing circuitry for processing signals in the communication module.
The beneficial effects of the utility model reside in that: (1) The metal antenna covers the circuit board, so that parts on the whole circuit board are protected, and meanwhile, good communication performance is guaranteed; (2) By arranging the antenna radiation part, the omni-directional property of the antenna can be better, the radiation energy of the antenna is more, and the communication distance is longer; (3) The metal antenna effectively reduces the volume and the cost of the communication module.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic diagram of a frame of a communication module in some embodiments of the present invention;
fig. 2 is a schematic perspective view of a communication module according to some embodiments of the present invention;
FIG. 3 is a circuit schematic of the communication circuit shown in FIG. 2;
fig. 4 is a schematic perspective view of a metal antenna of the communication module shown in fig. 1;
fig. 5 is a schematic perspective view of another perspective view of the metal antenna of the communication module shown in fig. 1;
fig. 6 is a schematic diagram of a conductive path of a metal antenna in some embodiments of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, the embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 and 2 illustrate a communication module 100 in some embodiments of the invention. The communication module 100 may include a metal antenna 10, a communication circuit 20, and a circuit board 30, wherein the metal antenna 10 covers the entire circuit board 30 and is connected to the communication circuit 20, and the metal antenna 10 protects the entire circuit board 30 and ensures good communication performance. The communication circuit 20 is disposed on a circuit board 30. It is understood that the metal antenna 10 may also be connected to the circuit board 30 to fix the position of the metal antenna 10.
The metal antenna 10 may be used to receive electromagnetic wave signals in a space in some embodiments, convert the received electromagnetic wave signals into electrical signals, and transmit the electrical signals to the communication circuit 20, and the communication circuit 20 processes the electrical signals to obtain required signals; or the metal antenna 10 may also convert the electrical signal processed by the communication circuit 20 into an electromagnetic wave signal, and then radiate the electromagnetic wave signal.
The communication module 100 further includes at least a processing circuit 40 and other circuits 50, the processing circuit 40 and other circuits 50 are disposed on the circuit board 30, and the processing circuit 40 is used for processing various signals in the communication module 100.
As shown in fig. 3, the communication circuit 20 includes an inductor L3, a first capacitor C15, a second capacitor C16, a resistor R3, an antenna 21, and a wireless receiving module 22, wherein an antenna interface of the antenna is connected to a first end of the resistor R3, a second pin GND and a third pin GND of the antenna are grounded, a second end of the resistor R3 is connected to a second end of the inductor L3, a first end of the inductor L3 is connected to an interface of the wireless receiving module, a first end of the first capacitor C15 is connected to the first end of the inductor L3, a first end of the second capacitor C16 is connected to the second end of the inductor L3, and a second end of the first capacitor C15 and a second end of the second capacitor C16 are grounded.
Referring to fig. 4 and 5 together, the metal antenna 10 may have a cubic, cylindrical or other irregular three-dimensional structure in some embodiments, which may include a conductive surface covering the circuit board 30 and a plurality of antenna supporting portions for supporting the conductive surface.
In some embodiments, the conductive surface has two hollow-out grooves 110, and the shape of the hollow-out groove 110 includes other shapes such as a bar shape. The antenna element 11 is formed on the periphery of the hollow-out groove 110, and the shape of the antenna element 11 is a strip shape or a shape formed by bending the strip shape. One end of the antenna element 11 is connected to the antenna radiating section and the other end is connected to the antenna feed point 14 of the antenna support section. In some embodiments, the antenna element 11 may be composed of a plurality of strip shapes, it is understood that the plurality of strip-shaped antenna elements 11 may also be composed of one strip-shaped antenna element 11, the shape of the antenna element 11 may be set according to requirements, and generally, in order to reduce the volume of the product and save the cost, the shape of the antenna element 11 is bent. Specifically, in some embodiments, the antenna element 11 may be equivalent to an inductor, and when the length and the width of the antenna element 11 are changed, the size of the inductor may also be changed (of course, if the length and the width of the antenna element 11 are kept unchanged, only changing the shape of the antenna element, such as bending the antenna element into other shapes, may also have a certain effect on the size of the inductor, but the effect on the shape becomes very small compared to the effect on the length and the width here), so that the parameters of the metal antenna 10 may be optimized by changing the length and the width of the antenna element 11.
In some embodiments, the antenna element 11 is further provided with a reinforcing rib 111, and since the antenna element 11 is in a strip shape, the antenna element 11 is relatively weak, and the reinforcing rib 111 is provided to increase the strength of the antenna element 11, thereby preventing the antenna element 11 from being broken and the like.
The plurality of antenna supporting portions may include an antenna grounding point 12, an antenna radiating portion 13 and an antenna feeding point 14 in some embodiments, the antenna grounding point 12 is connected to a grounding point on the communication circuit 20, the antenna radiating portion 13 is connected to the antenna element 11, one end of the antenna feeding point 14 is connected to the communication circuit 20, and the other end thereof is connected to the antenna element 11. The antenna ground point 12, the antenna radiating portion 13 and the antenna feed point are separated by a gap.
The antenna ground points 12 may in some embodiments comprise a first antenna ground point 121, a second antenna ground point 122, a third antenna ground point 123 and a fourth antenna ground point 124, the first antenna ground point 121 being close to the antenna feed point 14, the first antenna ground point 121 being connected to the antenna element 11 in a first position, the first position being a non-end position of the antenna element 11. The first position is determined by the operating frequency of the metal antenna 10. In particular, in some embodiments, the first antenna ground point 121 may be equivalent to a capacitor, and when the first position where the first antenna ground point 121 is connected to the antenna element 11 is changed, the size of the capacitor may be changed, so that the performance parameter of the metal antenna 10, such as the operating frequency of the antenna, may be adjusted or optimized by changing the first position.
The antenna radiation portions 13 may include two antenna radiation portions 13 in some embodiments, and the two antenna radiation portions 13 are located at two ends of the conductive surface, which enables the antenna to have better omni-directionality, more radiation energy and longer communication distance.
Fig. 6 shows a schematic diagram of the conductive path of the metal antenna 10 in some embodiments of the present invention, with arrows indicating the effective conductive path. In some embodiments, when the antenna feed 14 is connected to the communication circuit 20 and the antenna ground 11 is connected to a ground point on the communication circuit 20, the conductive path of the metal antenna 10 is the path formed by the antenna feed 14 along the antenna element 11, the antenna ground 12 and the antenna radiating portion 13. In some embodiments, the material of the metal antenna 10 includes copper, and the main dimension data thereof is L =10.8mm, w =10.2mm, and h =1.56mm, and it is understood that the size of the metal antenna 10 may be set as required. The metal antenna 10 can be used as both an outer protective cover and an antenna of the communication module 100, which effectively reduces the volume and cost of the communication module 100.
It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. A metal antenna for a communication module, the metal antenna comprising a conductive surface overlying a circuit board of the communication module and a plurality of antenna supports for supporting the conductive surface;
the antenna supporting part comprises an antenna feed point, an antenna grounding point and an antenna radiation part, one end of the antenna feed point is connected with the communication circuit of the communication module, and the antenna grounding point is connected with the grounding point on the communication circuit; the metal antenna has a conductive path, and the antenna radiation portion is located at an end of the conductive path.
2. The metal antenna according to claim 1, wherein the conductive surface has a hollow groove, an antenna element is formed on the periphery of the hollow groove, one end of the antenna element is connected to the antenna radiation portion, and the other end of the antenna element is connected to the other end of the antenna feed point.
3. The metal antenna according to claim 2, wherein the antenna element has a shape of a strip or a shape formed by bending the strip.
4. The metal antenna of claim 3, wherein the antenna element has a rib formed thereon.
5. A metal antenna according to claim 2, characterized in that the conductive path is formed along the antenna element, the antenna radiating portion, starting from the antenna feed point.
6. The metal antenna of claim 1, wherein the antenna radiating portion, the antenna ground point and the antenna feed point are separated by a gap.
7. A metal antenna according to claim 2, characterized in that the antenna ground point comprises a plurality of antenna ground points, the antenna ground point being in proximity to the antenna feed point and being connected to the antenna element in a first position, the first position being a non-end position of the antenna element.
8. The metal antenna of claim 7, wherein the first position is determined by an operating frequency of the metal antenna.
9. A communication module comprising a circuit board, a communication circuit and the metal antenna of any one of claims 1 to 8, the communication circuit being disposed on the circuit board, the metal antenna comprising an antenna feed point, the metal antenna being connected to the communication circuit through the antenna feed point.
10. The communication module of claim 9, further comprising at least a processing circuit for processing signals in the communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222602521.7U CN218498362U (en) | 2022-09-28 | 2022-09-28 | Metal antenna and communication module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222602521.7U CN218498362U (en) | 2022-09-28 | 2022-09-28 | Metal antenna and communication module thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218498362U true CN218498362U (en) | 2023-02-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222602521.7U Active CN218498362U (en) | 2022-09-28 | 2022-09-28 | Metal antenna and communication module thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218498362U (en) |
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2022
- 2022-09-28 CN CN202222602521.7U patent/CN218498362U/en active Active
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