CN211670316U - Planar oscillator antenna with matching transmission line - Google Patents
Planar oscillator antenna with matching transmission line Download PDFInfo
- Publication number
- CN211670316U CN211670316U CN202020531980.9U CN202020531980U CN211670316U CN 211670316 U CN211670316 U CN 211670316U CN 202020531980 U CN202020531980 U CN 202020531980U CN 211670316 U CN211670316 U CN 211670316U
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- transmission line
- matching transmission
- antenna
- reflecting plate
- rectangular metal
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Abstract
A planar element antenna with a matching transmission line comprises a radiator component and a metal reflecting plate; the radiator part comprises a rectangular metal plane vibrator and a strip-shaped matching transmission line integrally connected with the rectangular metal plane vibrator, the rectangular metal plane vibrator and the metal reflecting plate are arranged at intervals and are parallel to each other, and the strip-shaped matching transmission line is bent for 180 degrees in the direction close to the metal reflecting plate; compared with the prior art, the beneficial effects of the utility model reside in that: the strip-shaped matching transmission line is bent back through a bending process, and an even air dielectric layer is formed between the radiation body part and the metal reflecting plate, so that the feed matching of the microstrip planar antenna structure to the rectangular metal planar oscillator is realized, the working bandwidth of the antenna is ensured, the structure is simple and compact, the low loss and low dielectric constant characteristics of the air dielectric are fully utilized, and the radiation efficiency of the antenna is effectively improved.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an antenna technology field, specificly relate to a plane oscillator antenna who contains matching transmission line.
[ background of the invention ]
The microstrip planar oscillator antenna, in particular to a microstrip antenna based on a PCB plate structure, has the remarkable advantages of simple design, easy integration of a microstrip matching feed network, low cost, light and thin structure, easy realization of vertical feed by utilizing a via hole process and the like, thereby being widely applied to design. Due to the material characteristics of the PCB board, the dielectric supporting material has a certain relative dielectric constant (e.g. the relative dielectric constant of the conventional FR4 board is about 4.4), so that the gain and performance of the similar form of monopole antenna are correspondingly limited.
The metal planar element antenna is a special improvement of the planar element antenna with the microstrip structure, namely, air is used as a medium to replace the original medium supporting material, so that the relative dielectric constant of the medium is greatly reduced (the relative dielectric constant of the air is approximately about 1), and higher single element antenna gain can be obtained. In addition, if a wider antenna operating bandwidth is to be obtained, a transmission line in the form of a microstrip configured on a planar oscillator is usually matched to realize the antenna structure under the condition of an air medium, but the metal planar oscillator antenna structure in the prior art is too complex, and an excessive space is occupied by an internal circuit, so that the radiation efficiency of the antenna is weakened.
Accordingly, there is a need for a planar element antenna with a matching transmission line to overcome the deficiencies of the prior art.
[ Utility model ] content
The utility model aims at providing a plane oscillator antenna who contains matching transmission line forms the inflection shape with the strip matching transmission line through bending process, form even air dielectric layer between radiator part and the metal reflecting plate, realized microstrip plane antenna structure and to the feed matching of rectangle metal plane oscillator, ensured the working bandwidth of antenna to the structure is succinct and compact, make full use of air dielectric's low-loss and low dielectric constant characteristic effectively promote the radiation efficiency of antenna.
In order to achieve the above object, the present invention provides a planar dipole antenna with a matching transmission line, which comprises a radiator component and a metal reflection plate;
the radiator part comprises a rectangular metal plane vibrator and a strip-shaped matching transmission line integrally connected with the rectangular metal plane vibrator, the rectangular metal plane vibrator and the metal reflecting plate are arranged at intervals and are parallel to each other, and the strip-shaped matching transmission line is bent by 180 degrees towards the direction close to the metal reflecting plate.
In a preferred embodiment, the rectangular metal planar vibrator is provided with a pair of obliquely symmetrical cut corners.
In a preferred embodiment, the geometric center of the rectangular metal planar oscillator is provided with a geometric center opening.
In a preferred embodiment, a plurality of supporting members made of low dielectric constant materials are arranged between the rectangular metal planar vibrator and the metal reflecting plate.
In a preferred embodiment, a coaxial radio frequency connector is arranged on the back surface of the metal reflecting plate, and the coaxial radio frequency connector penetrates through a drilled hole in the metal reflecting plate to be electrically connected with the tail end of the strip-shaped matching transmission line.
Compared with the prior art, the utility model provides a pair of contain plane oscillator antenna who matches transmission line's beneficial effect lies in: the strip-shaped matching transmission line is bent back through a bending process, and an even air dielectric layer is formed between the radiation body part and the metal reflecting plate, so that the feed matching of the microstrip planar antenna structure to the rectangular metal planar oscillator is realized, the working bandwidth of the antenna is ensured, the structure is simple and compact, the low loss and low dielectric constant characteristics of the air dielectric are fully utilized, and the radiation efficiency of the antenna is effectively improved.
[ description of the drawings ]
Fig. 1 is a perspective view of the planar dipole antenna with matching transmission line provided by the present invention.
Fig. 2 is a left side view of the planar element antenna including the matching transmission line shown in fig. 1.
Fig. 3 is a perspective view of the radiator element shown in fig. 1.
[ detailed description ] embodiments
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1 to 3, the present invention provides a planar dipole antenna 100 with a matching transmission line.
In the embodiment of the present invention, the planar element antenna 100 with matching transmission line includes a radiator component 10 and a metal reflection plate 20.
Specifically, the radiator part 10 includes a rectangular metal planar vibrator 11 and a strip-shaped matching transmission line 12 integrally connected to the rectangular metal planar vibrator 11, the rectangular metal planar vibrator 11 and the metal reflection plate 20 are arranged at an interval and are parallel to each other, and the strip-shaped matching transmission line 12 is bent 180 ° toward the direction close to the metal reflection plate 20.
It can be understood that the planar dipole antenna 100 including the matching transmission line forms the strip-shaped matching transmission line 12 into a folded shape through a bending process, and a uniform air dielectric layer is formed between the radiator part 10 and the metal reflection plate 20, so that the radiator part 10 and the metal reflection plate 20 form a microstrip planar antenna structure using air as a medium, and the strip-shaped matching transmission line 12 and the metal reflection plate 20 form a microstrip matching transmission line structure using air as a medium, and perform impedance matching on the rectangular metal planar dipole 11, thereby implementing feed matching of the microstrip planar antenna structure to the rectangular metal planar dipole 11, ensuring the working bandwidth of the antenna, and making full use of the characteristics of low loss and low dielectric constant of the air dielectric, and effectively improving the radiation efficiency of the antenna. It should be noted that parameters such as the operating frequency, the radiation gain, the front-to-back ratio, etc. of the antenna can be adjusted by changing the side length of the rectangular metal planar oscillator 11 and the distance between the radiator component 10 and the metal reflection plate 20; parameters such as port impedance and working bandwidth of the antenna can be adjusted by changing the line width of the strip-shaped matching transmission line 12 and the distance between the strip-shaped matching transmission line 12 and the metal reflection plate 20.
Preferably, the rectangular metal planar vibrator 11 is provided with a pair of oblique symmetric cut corners 111. By changing the size and direction of a pair of oblique symmetric cut angles 111 on the rectangular metal planar oscillator 11, the polarization characteristic of the antenna can be influenced, the polarization characteristic can be generated by adjusting to a proper size, the size of the oblique symmetric cut angles 111 is reduced to zero (namely, in a non-cut angle state), and the antenna works in a linear polarization state.
Preferably, the geometric center of the rectangular metal planar oscillator 11 is provided with a geometric center opening 112. The geometric center opening 112 can adjust the operating frequency of the antenna, and the size of the geometric center opening 112 can be reduced to zero (i.e., no opening state).
Preferably, a plurality of supporting members 30 made of a material with a low dielectric constant are disposed between the rectangular metal planar vibrator 11 and the metal reflection plate 20. The support member 30 plays a supporting role without influencing the low dielectric constant of the air medium.
Preferably, a coaxial rf connector 21 is disposed on the back surface of the metal reflection plate 20, and the coaxial rf connector 21 passes through a bore hole in the metal reflection plate 20 and is electrically connected to the end of the strip-shaped matching transmission line 12. The coaxial feed of the antenna is realized through the electrical connection between the coaxial radio frequency connector 21 and the strip-shaped matching transmission line 12.
Compared with the prior art, the utility model provides a pair of contain plane oscillator antenna who matches transmission line's beneficial effect lies in: the strip-shaped matching transmission line is bent back through a bending process, and an even air dielectric layer is formed between the radiation body part and the metal reflecting plate, so that the feed matching of the microstrip planar antenna structure to the rectangular metal planar oscillator is realized, the working bandwidth of the antenna is ensured, the structure is simple and compact, the low loss and low dielectric constant characteristics of the air dielectric are fully utilized, and the radiation efficiency of the antenna is effectively improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. A planar element antenna with matching transmission lines is characterized in that: comprises a radiator part and a metal reflecting plate;
the radiator part comprises a rectangular metal plane vibrator and a strip-shaped matching transmission line integrally connected with the rectangular metal plane vibrator, the rectangular metal plane vibrator and the metal reflecting plate are arranged at intervals and are parallel to each other, and the strip-shaped matching transmission line is bent by 180 degrees towards the direction close to the metal reflecting plate.
2. The planar element antenna with matching transmission line as recited in claim 1, wherein: the rectangular metal plane vibrator is provided with a pair of oblique symmetrical cut angles.
3. The planar element antenna with matching transmission line as recited in claim 1, wherein: the geometric center of the rectangular metal plane vibrator is provided with a geometric center hole.
4. The planar element antenna with matching transmission line as recited in claim 1, wherein: and a plurality of supporting pieces made of materials with low dielectric constants are arranged between the rectangular metal plane vibrator and the metal reflecting plate.
5. The planar element antenna with matching transmission line as recited in claim 1, wherein: the back of the metal reflecting plate is provided with a coaxial radio frequency connector, and the coaxial radio frequency connector penetrates through a drilling hole in the metal reflecting plate to be electrically connected with the tail end of the strip-shaped matching transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020531980.9U CN211670316U (en) | 2020-04-10 | 2020-04-10 | Planar oscillator antenna with matching transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020531980.9U CN211670316U (en) | 2020-04-10 | 2020-04-10 | Planar oscillator antenna with matching transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211670316U true CN211670316U (en) | 2020-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020531980.9U Expired - Fee Related CN211670316U (en) | 2020-04-10 | 2020-04-10 | Planar oscillator antenna with matching transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211670316U (en) |
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2020
- 2020-04-10 CN CN202020531980.9U patent/CN211670316U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201013 |