CN219226609U - Antenna structure of remote control transmitter - Google Patents
Antenna structure of remote control transmitter Download PDFInfo
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- CN219226609U CN219226609U CN202320135068.5U CN202320135068U CN219226609U CN 219226609 U CN219226609 U CN 219226609U CN 202320135068 U CN202320135068 U CN 202320135068U CN 219226609 U CN219226609 U CN 219226609U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model relates to the technical field of antennas, in particular to an antenna structure of a remote control transmitter. The utility model discloses an antenna structure of a remote control transmitter, which comprises a PCB substrate, a front antenna body, a back antenna body, a conductive via hole, a resonant capacitor unit, a matching network unit and a signal feed point, wherein the front antenna body, the resonant capacitor unit, the matching network unit and the signal feed point are all arranged on the front surface of the PCB substrate, the back antenna body is arranged on the back surface of the PCB substrate, the front antenna body and the back antenna body are of annular structures with an opening, the front antenna body and the back antenna body are oppositely arranged and are electrically connected through the conductive via hole penetrating through the PCB substrate, and the signal feed point is electrically connected with two ends of the front antenna body sequentially through the resonant capacitor unit and the matching network unit. The antenna structure of the utility model has good directivity, higher radiation efficiency, simple structure, compactness and small size and is easy to realize.
Description
Technical Field
The utility model belongs to the technical field of antennas, and particularly relates to an antenna structure of a remote control transmitter.
Background
With the continuous development of automobile electronic products, the volume requirement of the remote control transmitter for the automobile is smaller and smaller so as to be convenient to carry and use, and correspondingly, the size of the PCB inside the remote control transmitter is also compact and small. In order to ensure reliability of wireless communication performance, it is becoming extremely important to design an antenna with excellent performance on a smaller PCB board size. The PCB antenna designed by the prior product mainly comprises a single-sided PCB antenna, and has the defects of poor directivity, lower radiation efficiency and the like, and can not meet the use requirement.
Disclosure of Invention
The present utility model is directed to an antenna structure of a remote control transmitter for solving the above-mentioned problems.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an antenna structure of remote control transmitter, including the PCB base plate, the front antenna body, the back antenna body, electrically conductive via hole, resonant capacitor unit, match network unit and signal feed point, the front antenna body, resonant capacitor unit, match network unit and signal feed point all set up on the front of PCB base plate, the back antenna body sets up on the back of PCB base plate, front antenna body and back antenna body are for having an open-ended annular structure, front antenna body and back antenna body set up relatively and are connected through the electrically conductive via hole that runs through the PCB base plate, signal feed point loops through resonant capacitor unit and match network unit and is connected with the both ends electricity of front antenna body.
Further, the structure of the front antenna body except for the two ends is the same as the structure of the back antenna body except for the two ends, and the front antenna body and the back antenna body are opposite to each other along the direction vertical to the front and back surfaces of the PCB substrate.
Further, the front antenna body and the back antenna body are respectively arranged along the edges of the front and the back of the PCB substrate in a surrounding mode.
Further, the number of the conductive through holes is multiple, and the conductive through holes are sequentially distributed at intervals along the length direction of the front antenna body and the back antenna body.
Furthermore, the front antenna body and the back antenna body are made of copper materials.
Further, the resonant capacitor unit comprises a resonant capacitor, a first end of the resonant capacitor is connected with the signal feed point, and a second end of the resonant capacitor is connected with the matching network unit.
Furthermore, the matching network unit is composed of a matching inductor and a matching capacitor.
Still further, the matching network unit includes first matching inductance, second matching inductance, first matching capacitance, second matching capacitance and third matching capacitance, the first end of first matching inductance and first matching capacitance all is connected with the second end of resonance capacitance, the second end of first matching inductance is connected with the first end of second matching inductance and the one end of second matching capacitance respectively, the second end of second matching inductance is connected with the first end of front antenna body, the second end of second matching capacitance is connected with the second end of first matching capacitance and the first end of third matching capacitance respectively, the second end of third matching capacitance is connected with the second end of front antenna body.
Further, the signal feed point is disposed at an inner side of the front antenna body.
Further, the PCB substrate is a rigid PCB substrate.
The beneficial technical effects of the utility model are as follows:
the antenna structure of the utility model has good directivity, higher radiation efficiency, simple structure, compactness and small size and is easy to realize.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a block diagram of an embodiment of the present utility model;
FIG. 2 is a rear block diagram of an embodiment of the present utility model;
FIG. 3 is a front view of a structure diagram of a matching network unit with a resonant capacitor unit omitted according to an embodiment of the present utility model;
fig. 4 is a remote control distance performance graph of an embodiment of the present utility model.
Detailed Description
For further illustration of the various embodiments, the utility model is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present utility model. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.
The utility model will now be further described with reference to the drawings and detailed description.
As shown in fig. 1-3, an antenna structure of a remote control transmitter includes a PCB (printed circuit board) substrate 1, a front antenna body 2, a back antenna body 3, a conductive via 4, a resonant capacitor unit 5, a matching network unit 6, and a signal feed point 7, where the front antenna body 2, the resonant capacitor unit 5, the matching network unit 6, and the signal feed point 7 are all disposed on the front surface of the PCB substrate 1, the back antenna body 2 is disposed on the back surface of the PCB substrate 1, the front antenna body 2 and the back antenna body 3 are in a non-closed loop structure with an opening, the front antenna body 2 and the back antenna body 3 are disposed opposite to each other and are electrically connected through the conductive via 4 penetrating the PCB substrate 1, the signal feed point 7 is electrically connected to two ends of the front antenna body 2 sequentially through the resonant capacitor unit 5 and the matching network unit 6, and the signal feed point 7 is connected to PA (radio frequency amplification) output ends of a radio frequency chip (not shown in the figure) as an input point for radio frequency signal conduction.
The front antenna body 2 and the back antenna body 3 are connected together through the conductive via hole 4 penetrating through the PCB substrate 1 to form a complete antenna body, and the antenna body has good directivity and high radiation efficiency.
In this embodiment, the structure of the front antenna body 2 except for the two ends thereof is the same as the structure of the back antenna body 3 except for the two ends thereof, and is arranged opposite to each other along the front and back directions perpendicular to the PCB substrate 1, so that the overall structure is more compact, simple, easy to manufacture, and the overall performance of the antenna structure is improved, but not limited thereto.
Preferably, in this embodiment, the front antenna body 2 and the back antenna body 3 are respectively disposed around the edges of the front and back sides of the PCB substrate 1, so that in the case of smaller size of the PCB substrate 1, the larger size of the front antenna body 2 and the back antenna body 3 is ensured, thereby improving the overall performance of the antenna structure.
In this embodiment, the front antenna body 2 and the back antenna body 3 are both in a substantially convex structure, but not limited thereto.
Preferably, in this embodiment, the number of the conductive vias 4 is multiple, and the multiple conductive vias 4 are sequentially and alternately arranged along the length directions of the front antenna body 2 and the back antenna body 3, so that the electrical connection between the front antenna body 2 and the back antenna body 3 is better ensured, the conductivity of the front antenna body 2 and the back antenna body 3 is improved, and the overall performance of the antenna structure is improved.
The front antenna body 2 and the back antenna body 3 are preferably made of copper materials, the conductive via hole 4 is realized by a hole wall copper plating layer, and can be realized by adopting the existing PCB board manufacturing process, the process technology is mature, the stability is good, and the cost is low, but not limited thereto, and in some embodiments, the front antenna body 2 and the back antenna body 3 can also be realized by adopting other conductive metals, such as silver, foil and the like.
Specifically, in this embodiment, the resonant capacitor unit 5 includes a resonant capacitor 51, a first end of the resonant capacitor 51 is connected to the signal feed point 7, and a second end of the resonant capacitor 5 is connected to the matching network unit 6. The resonant capacitor 51 is used for being connected in series with the PA internal inductor of the radio frequency chip to form a resonant network, and is used for filtering out higher harmonics and improving the performance of the antenna structure. Of course, in some embodiments, the resonant capacitor unit 5 may be implemented by other existing resonant capacitor units.
The matching network unit 6 is used for impedance transformation between the PA of the radio frequency chip and the antenna body load, in this embodiment, the matching network unit 6 is composed of a matching inductance and a matching capacitance, and has good matching effect, simple structure and easy implementation, but not limited thereto.
Specifically, in this embodiment, the matching network unit 6 includes a first matching inductor 61, a second matching inductor 62, a first matching capacitor 63, a second matching capacitor 64 and a third matching capacitor 65, where the first ends of the first matching inductor 61 and the first matching capacitor 63 are connected to the second end of the resonant capacitor 51, the second end of the first matching inductor 61 is connected to the first end of the second matching inductor 62 and one end of the second matching capacitor 64, the second end of the second matching inductor 62 is connected to the first end 21 of the front antenna body 2, the second end of the second matching capacitor 64 is connected to the second end of the first matching capacitor 63 and the first end of the third matching capacitor 65, and the second end of the third matching capacitor 65 is connected to the second end 22 of the front antenna body 2.
In this embodiment, the front surface of the PCB substrate 1 is further provided with a plurality of conductive connection portions 8, and the resonant capacitor unit 5, the first matching inductor 61, the second matching inductor 62, the first matching capacitor 63, the second matching capacitor 64 and the third matching capacitor 65 are correspondingly connected through the plurality of conductive connection portions 8, which is easy to implement.
Preferably, in this embodiment, the resonant capacitor unit 5, the first matching inductor 61, the second matching inductor 62, the first matching capacitor 63, the second matching capacitor 64 and the third matching capacitor 65 are disposed in the opening of the front antenna body 2, so that the overall structure is more compact.
In this embodiment, the signal feed point 7 is disposed inside the front antenna body 2, so that the overall structure is more reasonable, compact and small, but not limited thereto.
Preferably, in this embodiment, the PCB substrate 1 is a rigid PCB substrate, and may be made of a phenolic paper laminate, an epoxy paper laminate, a polyester glass felt laminate, or an epoxy glass cloth laminate, so that the front antenna body 2 and the back antenna body 3 are not easy to deform, and the performance of the antenna structure is guaranteed, but the present utility model is not limited thereto, and in some embodiments, the PCB substrate 1 may also be a flexible PCB substrate.
Fig. 4 is a graph showing the remote control distance performance of the antenna structure according to this embodiment, and it can be seen from the graph that the remote control distance of each angle exceeds 40m,29 angles exceeds 50m, and 9 angles are about 60 m. The antenna structure has the advantages of good directivity, higher radiation efficiency, simple structure, compactness, small size and easy realization.
While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (10)
1. An antenna structure of a remote control transmitter, characterized in that: including PCB base plate, front antenna body, back antenna body, electrically conductive via hole, resonance capacitor unit, matching network unit and signal feed point, front antenna body, resonance capacitor unit, matching network unit and signal feed point all set up on the front of PCB base plate, and the back antenna body sets up on the back of PCB base plate, and front antenna body and back antenna body are for having an open-ended annular structure, and front antenna body and back antenna body set up relatively and are connected through the electrically conductive via hole electricity that runs through the PCB base plate, and the signal feed point loops through resonance capacitor unit and matching network unit and is connected with the both ends electricity of front antenna body.
2. The antenna structure of a remote control transmitter of claim 1, wherein: the structure of the front antenna body except for the two ends is the same as that of the back antenna body except for the two ends, and the front antenna body and the back antenna body are opposite to each other along the direction perpendicular to the front and back surfaces of the PCB substrate.
3. The antenna structure of a remote control transmitter of claim 2, wherein: the front antenna body and the back antenna body are respectively arranged along the edges of the front side and the back side of the PCB substrate in a surrounding mode.
4. A remote control transmitter antenna structure according to any one of claims 1-3, characterized in that: the number of the conductive through holes is multiple, and the conductive through holes are sequentially distributed at intervals along the length direction of the front antenna body and the back antenna body.
5. The remote control transmitter antenna structure of claim 4, wherein: the front antenna body and the back antenna body are made of copper materials.
6. The antenna structure of a remote control transmitter of claim 1, wherein: the resonant capacitor unit comprises a resonant capacitor, a first end of the resonant capacitor is connected with the signal feed point, and a second end of the resonant capacitor is connected with the matching network unit.
7. The remote control transmitter antenna structure of claim 6, wherein: the matching network unit is composed of a matching inductor and a matching capacitor.
8. The remote control transmitter antenna structure of claim 7, wherein: the matching network unit comprises a first matching inductor, a second matching inductor, a first matching capacitor, a second matching capacitor and a third matching capacitor, wherein the first ends of the first matching inductor and the first matching capacitor are connected with the second end of the resonant capacitor, the second end of the first matching inductor is connected with the first end of the second matching inductor and one end of the second matching capacitor respectively, the second end of the second matching inductor is connected with the first end of the front antenna body, the second end of the second matching capacitor is connected with the second end of the first matching capacitor and the first end of the third matching capacitor respectively, and the second end of the third matching capacitor is connected with the second end of the front antenna body.
9. The antenna structure of a remote control transmitter of claim 1, wherein: the signal feed point is arranged on the inner side of the front antenna body.
10. The antenna structure of a remote control transmitter of claim 1, wherein: the PCB substrate is a rigid PCB substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320135068.5U CN219226609U (en) | 2023-01-11 | 2023-01-11 | Antenna structure of remote control transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320135068.5U CN219226609U (en) | 2023-01-11 | 2023-01-11 | Antenna structure of remote control transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219226609U true CN219226609U (en) | 2023-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320135068.5U Active CN219226609U (en) | 2023-01-11 | 2023-01-11 | Antenna structure of remote control transmitter |
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| Country | Link |
|---|---|
| CN (1) | CN219226609U (en) |
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2023
- 2023-01-11 CN CN202320135068.5U patent/CN219226609U/en active Active
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