CN211957916U - Coupling pcb antenna - Google Patents
Coupling pcb antenna Download PDFInfo
- Publication number
- CN211957916U CN211957916U CN202020497976.5U CN202020497976U CN211957916U CN 211957916 U CN211957916 U CN 211957916U CN 202020497976 U CN202020497976 U CN 202020497976U CN 211957916 U CN211957916 U CN 211957916U
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- antenna radiator
- radiator
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Abstract
The utility model provides a pair of coupling pcb antenna, include: a first antenna radiator for radiating a signal to generate a waveform of a specific frequency band, the first antenna radiator being provided with a first feed point and a feed point; the second antenna radiator is coupled with the first antenna radiator to radiate to form an antenna adjacent to the specific frequency band, wherein the second antenna radiator is provided with a second feed point; and a third antenna radiator coupled with the second antenna radiator to form a frequency-doubled antenna, wherein an opening is formed in the side of the second antenna radiator, and the second antenna radiator and the third antenna radiator are coupled at the opening. The antenna is designed on the pcb to be coupled with the second antenna radiator, and then the second antenna radiator is coupled with the third antenna radiator to form the effect of three antennas in a small area range.
Description
Technical Field
The utility model belongs to the technical field of communication, especially, relate to a coupling pcb antenna.
Background
An antenna is a transducer that converts a guided wave propagating on a transmission line into an electromagnetic wave propagating in an unbounded medium (usually free space) or vice versa. A component for transmitting or receiving electromagnetic waves in a radio device. Engineering systems such as radio communication, broadcasting, television, radar, navigation, electronic countermeasure, remote sensing, radio astronomy and the like all use electromagnetic waves to transmit information and work by depending on antennas. In addition, in transferring energy with electromagnetic waves, non-signal energy radiation also requires antennas. The antennas are generally reciprocal in that the same pair of antennas can be used as both transmit and receive antennas. The same antenna is the same as the basic characteristic parameter for transmission or reception. However, the FPC antenna needs a large antenna design area, various devices in a mobile phone are increased, the antenna environment is poor, the antenna performance is difficult to improve, especially in a metal ring environment, the antenna performance is difficult to improve, and the small-area antenna cannot be debugged.
In summary, there is a need for a method that can solve one or more of the above-mentioned problems by adding a second antenna radiator and a third antenna radiator through a coupling method.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing deficiencies of the prior art, it is an object of the present invention to provide a coupling pcb antenna, which solves the problem of the prior art that the small area antenna cannot be debugged.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a coupled pcb antenna, comprising:
a first antenna radiator for radiating a signal to generate a waveform of a specific frequency band, the first antenna radiator being provided with a first feed point and a feed point;
the second antenna radiator is coupled with the first antenna radiator to radiate to form an antenna adjacent to the specific frequency band, wherein the second antenna radiator is provided with a second feed point;
and a third antenna radiator coupled with the second antenna radiator to form a frequency-doubled antenna, wherein an opening is formed in the side of the second antenna radiator, and the second antenna radiator and the third antenna radiator are coupled at the opening.
Preferably, the second antenna radiator is a metal ring radiator.
Preferably, the number of the openings is two.
Preferably, the first antenna radiator, the second antenna radiator and the third antenna radiator are tunable by matching.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a pair of coupling pcb antenna, include: a first antenna radiator for radiating a signal to generate a waveform of a specific frequency band, the first antenna radiator being provided with a first feed point and a feed point; the second antenna radiator is coupled with the first antenna radiator to radiate to form an antenna adjacent to the specific frequency band, wherein the second antenna radiator is provided with a second feed point; and a third antenna radiator coupled with the second antenna radiator to form a frequency-doubled antenna, wherein an opening is formed in the side of the second antenna radiator, and the second antenna radiator and the third antenna radiator are coupled at the opening. The antenna is designed on the pcb to be coupled with the second antenna radiator, and then the second antenna radiator is coupled with the third antenna radiator to form the effect of three antennas in a small area range.
Drawings
Fig. 1 is a block diagram of the present invention.
Reference numerals:
100. a first antenna radiator 101, a first feed point 102, a feed point 200, a second antenna radiator 201, a second feed point 300, a third antenna radiator 400, an opening
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the following description of the present invention will refer to the accompanying drawings and illustrate embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1, the present invention provides a coupling pcb antenna, including:
a first antenna radiator 100 for radiating a signal to generate a waveform of a specific frequency band, the first antenna radiator 100 providing a first feeding point 101 and a feeding point 102;
a second antenna radiator 200, and coupled and radiated with the first antenna radiator 100 to form an antenna adjacent to the specific frequency band, wherein the second antenna radiator 200 is provided with a second feed point 201;
a third antenna radiator 300 coupled to the second antenna radiator 200 to form a frequency-doubled antenna, wherein an opening 400 is formed at a side of the second antenna radiator 200, and the second antenna radiator 200 and the third antenna radiator 300 are coupled at the opening 400.
Specifically, the antenna inputs a signal through the feeding point 102, a waveform of a desired frequency band is generated by radiating the signal through the first antenna radiator 100, the first antenna radiator 100 and the second antenna radiator 200 perform coupling radiation to form an antenna of an adjacent frequency band, the second antenna radiator 200 is coupled with the third antenna radiator 300 at the side opening 400, and a frequency-doubled antenna is coupled, so that an effect of a triple-antenna in a small area range is achieved.
In some embodiments, the second antenna radiator 200 is a metal ring radiator, i.e., an opening 400 is disposed at a side of the metal ring radiator, and is coupled to the third antenna radiator 300 at the opening 400.
In some embodiments, there are two openings 400, i.e., the openings 400 are disposed on both left and right sides of the second antenna radiator 200, except that the opening 400 on the right is closer to the first antenna radiator 100, which is more efficient.
In some embodiments, the first antenna radiator 100, the second antenna radiator 200, and the third antenna radiator 300 can be tuned by matching, that is, when tuning the antenna waveform, the waveform generated by the antenna is tuned to a desired frequency band by using capacitance and inductance frequency modulation.
To sum up, the utility model discloses a theory of operation as follows:
the utility model provides a pair of coupling pcb antenna, include: a first antenna radiator 100 for radiating a signal to generate a waveform of a specific frequency band, the first antenna radiator 100 providing a first feeding point 101 and a feeding point 102; a second antenna radiator 200, and coupled and radiated with the first antenna radiator 100 to form an antenna adjacent to the specific frequency band, wherein the second antenna radiator 200 is provided with a second feed point 201; a third antenna radiator 300 coupled to the second antenna radiator 200 to form a frequency-doubled antenna, wherein an opening 400 is formed at a side of the second antenna radiator 200, and the second antenna radiator 200 and the third antenna radiator 300 are coupled at the opening 400. By designing the antenna on the pcb to be coupled with the second antenna radiator 200, the second antenna radiator 200 is coupled with the third antenna radiator 300 to form the effect of three antennas in a small area range.
It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.
Claims (4)
1. A coupled pcb antenna, comprising:
a first antenna radiator for radiating a signal to generate a waveform of a specific frequency band, the first antenna radiator being provided with a first feed point and a feed point;
the second antenna radiator is coupled with the first antenna radiator to radiate to form an antenna adjacent to the specific frequency band, wherein the second antenna radiator is provided with a second feed point;
and a third antenna radiator coupled with the second antenna radiator to form a frequency-doubled antenna, wherein an opening is formed in the side of the second antenna radiator, and the second antenna radiator and the third antenna radiator are coupled at the opening.
2. The coupled pcb antenna of claim 1, wherein the second antenna radiator is a metal loop radiator.
3. The coupled pcb antenna of claim 1, wherein the openings are two.
4. The coupled pcb antenna of claim 1, wherein the first, second and third antenna radiators are each tunable by matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020497976.5U CN211957916U (en) | 2020-04-08 | 2020-04-08 | Coupling pcb antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020497976.5U CN211957916U (en) | 2020-04-08 | 2020-04-08 | Coupling pcb antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211957916U true CN211957916U (en) | 2020-11-17 |
Family
ID=73160584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020497976.5U Active CN211957916U (en) | 2020-04-08 | 2020-04-08 | Coupling pcb antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211957916U (en) |
-
2020
- 2020-04-08 CN CN202020497976.5U patent/CN211957916U/en active Active
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