CN210182564U - Ultra-thin high-gain narrow-beam antenna - Google Patents
Ultra-thin high-gain narrow-beam antenna Download PDFInfo
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- CN210182564U CN210182564U CN201920990058.3U CN201920990058U CN210182564U CN 210182564 U CN210182564 U CN 210182564U CN 201920990058 U CN201920990058 U CN 201920990058U CN 210182564 U CN210182564 U CN 210182564U
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- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 230000009977 dual effect Effects 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000004088 simulation Methods 0.000 abstract description 5
- 230000010363 phase shift Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses an ultra-thin type high-gain narrow beam antenna, include: the oscillator reflecting plate is arranged on the antenna oscillator and the feed network on the oscillator reflecting plate; the antenna is characterized in that the antenna oscillator comprises a first oscillator, a second oscillator and a third oscillator which are sequentially arranged on the same surface of the oscillator reflection plate at intervals, each antenna oscillator is a square metal plate, the side length of each square metal plate is 0.25 lambda, and lambda represents the central wavelength of the antenna. The utility model discloses a set up the antenna element 2 that three length of side is 0.25 lambda in the interval on the same side of oscillator reflecting plate, compact structure does benefit to slimming, the miniaturization that realizes the antenna. Meanwhile, the beam width is reduced and the gain is increased through array combining specific oscillator reflection plates and a feed network. Through experimental simulation, the gain of the ultra-thin high-gain narrow-beam antenna provided by the embodiment is more than 9dBi, and the 3dB width is lower than 45 degrees.
Description
Technical Field
The utility model relates to the technical field of antennas, especially, relate to an ultra-thin type high-gain narrow beam antenna.
Background
Radio frequency identification is a non-contact automatic identification technology. In RFID (Radio frequency identification) systems, identification information is stored in an electronic data carrier, which becomes a transponder. The identification information stored in the transponder is read by a reader, which in some applications can not only read the stored information but also write data to the transponder, which is achieved by wireless communication between the two parties. The microstrip antenna is used as a common directional antenna form in an RFID system, and has extremely important significance for the development and application of the RFID.
In recent years, with the continuous expansion of the application field of the microstrip antenna, the microstrip antenna has higher and higher requirements on the gain and the wave beam of the microstrip antenna, and meanwhile, more restrictions are brought to the size and the thickness of a microstrip antenna product. Most of the existing narrow-beam antennas have the defects of large size, small gain and the like, are inconvenient to use in some special application scenes, or have unsatisfactory effect.
Disclosure of Invention
To the problem that exists among the prior art, the utility model aims to provide a do benefit to slim design and gain height, small narrow beam antenna.
In order to achieve the above purpose, the utility model adopts the following technical scheme.
An ultra-thin high gain narrow beam antenna, comprising: the oscillator reflecting plate is arranged on the antenna oscillator and the feed network on the oscillator reflecting plate; the antenna is characterized in that the antenna oscillator comprises a first oscillator, a second oscillator and a third oscillator which are sequentially arranged on the same surface of the oscillator reflection plate at intervals, each antenna oscillator is a square metal plate, the side length of each square metal plate is 0.25 lambda, and lambda represents the central wavelength of the antenna.
More preferably, the oscillator reflecting plate is made of double-layer copper plates, and a plurality of layers of high-density FR-4 glass fiber plates are arranged between the two layers of copper plates; the dielectric constant of the oscillator reflecting plate is between 2.5 and 2.8.
More preferably, the thickness of the oscillator reflecting plate is not more than 3.5 mm.
More preferably, the feed network includes a microstrip line etched or engraved on the oscillator reflection plate, and the first oscillator and the second oscillator, and the second oscillator and the third oscillator are connected by the microstrip line.
More preferably, the feed network includes an integrated power division phase shift network, and the power division phase shift network is etched or engraved on the oscillator reflection plate.
More preferably, each of the antenna elements is etched or engraved on the element reflection plate.
More preferably, the antenna elements realize dual polarization by feeding points rotated by 90 degrees with respect to each other.
More preferably, the antenna element and the feed network are covered by a paint surface on the element reflection plate.
The utility model has the advantages that:
three antenna oscillators with the side length of 0.25 lambda are arranged on the same surface of the oscillator reflecting plate at intervals, so that the structure is compact, and the thinning and the miniaturization of the antenna are favorably realized. Meanwhile, the beam width is reduced and the gain is increased through array combining specific oscillator reflection plates and a feed network. Through experimental simulation, the utility model discloses an ultra-thin type high-gain narrow beam antenna, its gain is more than 9dBi, and 3dB width is less than 45.
Drawings
Fig. 1 is a schematic diagram of an ultra-thin high-gain narrow-beam antenna according to the present invention.
Fig. 2 and 3 show the results of the directional diagram simulation test.
Description of reference numerals:
1: oscillator reflecting plate, 2 antenna elements, 2-1: first oscillator, 2-2: second vibrator, 2-3: third oscillator, 3: power division phase shift network, 4: microstrip line, 4-1: first microstrip line, 4-2: second microstrip line, 4-3: a third microstrip line.
Detailed Description
In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.
The following description will be further made in conjunction with the accompanying drawings of the specification, so that the technical solution and the advantages of the present invention are clearer and clearer. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
As shown in fig. 1, an ultra-thin high-gain narrow-beam antenna includes: the oscillator reflecting plate 1 is arranged on the antenna oscillator 2 and the feed network on the oscillator reflecting plate 1; the antenna is characterized in that the antenna oscillator 2 comprises a first oscillator 2-1, a second oscillator 2-2 and a third oscillator 2-3 which are sequentially arranged on the same surface of the oscillator reflection plate 1 at intervals, each antenna oscillator 2 is a square metal plate, the side length of the square metal plate is 0.25 lambda, and lambda represents the central wavelength of the antenna.
The oscillator reflection plate 1 is made of double-layer copper plates, and a multilayer high-density FR-4 glass fiber plate is arranged between the two layers of copper plates; the dielectric constant of the oscillator reflecting plate is between 2.5 and 2.8; the thickness of the oscillator reflecting plate 1 is not more than 3.5 mm.
And the antenna oscillators 2 and the feed network are etched or carved on the oscillator reflection plate 1. In this embodiment, preferably, the feeding network includes: the oscillator comprises an integrated power division phase-shifting network 3 and a microstrip line 4 which are etched or carved on the oscillator reflector 1, wherein the first oscillator 2-1 is connected with the power division phase-shifting network 3 through the first microstrip line 4-1 for feeding, the second oscillator 2-2 is connected with the first oscillator 2-1 through the second microstrip line 4-2 for feeding, and the third oscillator 2-3 is connected with the second oscillator 2-2 through the third microstrip line 4-3 for feeding. Thus, multi-point feeding is configured, so that the radiation direction of the antenna is more uniform.
Preferably, the antenna elements 2 realize dual polarization by feeding points rotated by 90 degrees from each other. The microstrip line 4 is a copper wire, and impedance matching is performed by changing the length of the microstrip line 4, so that convenience is brought to implementation.
Further preferably, the element reflection plate 1 is further provided with a paint surface for covering the antenna element 2 and the feed network, so as to protect and prevent dust.
According to the ultrathin high-gain narrow-beam antenna provided by the embodiment, the three antenna oscillators 2 with the side length of 0.25 lambda are arranged on the same surface of the oscillator reflection plate at intervals, so that the structure is compact, and the antenna is favorably thinned and miniaturized. Meanwhile, the beam width is reduced and the gain is increased through array combining specific oscillator reflection plates and a feed network. Through experimental simulation, the gain of the ultra-thin high-gain narrow-beam antenna provided by the embodiment is above 9dBi, the 3dB width is lower than 45 degrees, and the simulation results are shown in fig. 2 and fig. 3.
It will be understood by those skilled in the art from the foregoing description of the structure and principles that the present invention is not limited to the specific embodiments described above, and that modifications and substitutions based on the known art are intended to fall within the scope of the invention, which is defined by the claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.
Claims (8)
1. An ultra-thin high gain narrow beam antenna, comprising: the oscillator reflecting plate is arranged on the antenna oscillator and the feed network on the oscillator reflecting plate; the antenna is characterized in that the antenna oscillator comprises a first oscillator, a second oscillator and a third oscillator which are sequentially arranged on the same surface of the oscillator reflection plate at intervals, each antenna oscillator is a square metal plate, the side length of each square metal plate is 0.25 lambda, and lambda represents the central wavelength of the antenna.
2. The ultra-thin high-gain narrow-beam antenna according to claim 1, wherein the dipole reflection plate is made of two copper plates, and a plurality of layers of high-density FR-4 glass fiber plates are arranged between the two copper plates; the dielectric constant of the oscillator reflecting plate is between 2.5 and 2.8.
3. The ultra-thin high-gain narrow-beam antenna according to claim 1, wherein said element reflector has a thickness not exceeding 3.5 mm.
4. The ultra-thin high-gain narrow-beam antenna of claim 1, wherein the feed network comprises a microstrip line etched or engraved on the oscillator reflector plate, and the first oscillator and the second oscillator are connected through the microstrip line, and the second oscillator and the third oscillator are connected through the microstrip line.
5. The ultra-thin high-gain narrow-beam antenna of claim 1, wherein the feed network comprises an integrated power-division phase-shifting network, and the power-division phase-shifting network is etched or engraved on the dipole reflector plate.
6. The ultra-thin type high gain narrow beam antenna of claim 1, wherein each of said antenna elements is etched or engraved on said element reflector plate.
7. The ultra-thin type high gain narrow beam antenna according to claim 1, wherein each of said antenna elements is dual polarized by a feeding point rotated 90 degrees from each other.
8. The ultra-thin high-gain narrow-beam antenna according to claim 1, wherein a paint surface covering the antenna element and the feed network is arranged on the element reflection plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920990058.3U CN210182564U (en) | 2019-06-27 | 2019-06-27 | Ultra-thin high-gain narrow-beam antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920990058.3U CN210182564U (en) | 2019-06-27 | 2019-06-27 | Ultra-thin high-gain narrow-beam antenna |
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| Publication Number | Publication Date |
|---|---|
| CN210182564U true CN210182564U (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920990058.3U Expired - Fee Related CN210182564U (en) | 2019-06-27 | 2019-06-27 | Ultra-thin high-gain narrow-beam antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380188A (en) * | 2019-06-27 | 2019-10-25 | 无锡凯施智联软件科技有限公司 | A kind of ultrathin type high-gain narrow beam antenna and antitheft carpet |
-
2019
- 2019-06-27 CN CN201920990058.3U patent/CN210182564U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380188A (en) * | 2019-06-27 | 2019-10-25 | 无锡凯施智联软件科技有限公司 | A kind of ultrathin type high-gain narrow beam antenna and antitheft carpet |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20200324 |