CN214589261U - Planar waveguide slot antenna with adjustable standing-wave ratio - Google Patents
Planar waveguide slot antenna with adjustable standing-wave ratio Download PDFInfo
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- CN214589261U CN214589261U CN202120767883.4U CN202120767883U CN214589261U CN 214589261 U CN214589261 U CN 214589261U CN 202120767883 U CN202120767883 U CN 202120767883U CN 214589261 U CN214589261 U CN 214589261U
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Abstract
The utility model discloses a slab waveguide slot antenna of adjustable standing-wave ratio, including rectangular waveguide pipe, rectangular waveguide pipe's one end is provided with the waveguide and presents the ability flange, rectangular waveguide pipe's the other end is provided with the waveguide end plate, be provided with the crack mouth that several size is the same on rectangular waveguide pipe's the wide face, rectangular waveguide pipe's wide face is close to one of waveguide end plate is served and is provided with the adjustable pin of several, the adjustable pin with waveguide end plate's nearest distance is 1/4 waveguide wavelength, every adjacent two distance between the adjustable pin is 1/4 waveguide wavelength, the diameter of adjustable pin is 6-30mm, the control range of adjustable pin is 10-40 mm. The utility model discloses can compensate the shortcoming that original dull and stereotyped crack antenna of microwave can not adjust the standing wave coefficient according to material characteristic, improve the microwave of crack antenna and present the heating efficiency of ability efficiency and material.
Description
Technical Field
The utility model relates to a microwave antenna technical field particularly, relates to a slab waveguide slot antenna of adjustable standing-wave ratio.
Background
The existing industrial flat plate slot antenna is designed and manufactured according to the specific width of the microwave drying oven, and the size and the standing wave coefficient of the flat plate slot antenna are fixed after the flat plate slot antenna is manufactured, so that the standing wave coefficient can not be adjusted according to the wave absorbing characteristic of materials in the drying oven, and when the wave absorbing characteristic of the materials is not matched with the standing wave coefficient of the flat plate slot antenna, the phenomena of large reflection power of the flat plate slot antenna, low microwave utilization efficiency, low microwave drying oven efficiency and the like can be caused.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem among the correlation technique, the utility model provides a slab waveguide slot antenna of adjustable standing-wave ratio can solve above-mentioned problem.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
the utility model provides a slab waveguide crack antenna of adjustable standing-wave ratio, includes rectangular waveguide, rectangular waveguide's one end is provided with waveguide and feeds energy flange, rectangular waveguide's the other end is provided with the waveguide end plate, be provided with the crack mouth that several size is the same on rectangular waveguide's the wide face, rectangular waveguide's wide face is close to one of waveguide end plate is served and is provided with several adjustable pin, adjustable pin with waveguide end plate's nearest distance is 1/4 waveguide wavelength, every adjacent two distance between the adjustable pin is 1/4 waveguide wavelength, the diameter of adjustable pin is 6-30mm, the control range of adjustable pin is 10-40 mm.
Furthermore, the number of the adjustable pins is three, and the three adjustable pins are vertically arranged on the wide surface of the rectangular waveguide tube.
Furthermore, the number of the crack openings is 4-20, the crack openings are uniformly arranged into an upper line and a lower line along the axial direction of the rectangular waveguide tube, and the positions of the crack openings in the first line and the crack openings in the second line in the longitudinal direction are staggered.
Furthermore, a waveguide mounting flange is arranged on the rectangular waveguide tube, the rectangular waveguide tube is fixedly connected with a microwave cavity through the waveguide mounting flange, and materials are arranged in the microwave cavity.
Furthermore, the material of adjustable pin is stainless steel, aluminum product or copper product.
The utility model has the advantages that: the utility model discloses can be according to the difference of material, the degree of depth through adjustable pin changes between 10-40 millimeters to look over and guarantee the standing wave ratio of crack antenna through terminal test instrument and adjust below 1.1, can compensate the shortcoming that original dull and stereotyped crack antenna of microwave can not adjust the standing wave coefficient according to material characteristic, improved the microwave of crack antenna and presented can efficiency and the heating efficiency of material.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in 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 invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a first structural schematic diagram of a planar waveguide slot antenna with an adjustable standing-wave ratio according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a planar waveguide slot antenna with an adjustable standing-wave ratio according to an embodiment of the present invention.
In the figure: 1. the waveguide energy-feedback device comprises a rectangular waveguide tube, 11 crack openings, 2 waveguide energy-feedback flanges, 3 waveguide end plates, 4 adjustable pins, 5 waveguide mounting flanges, 6 microwave cavities and 7 materials.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
As shown in fig. 1-2, according to the embodiment of the present invention, a slab waveguide slot antenna with adjustable standing-wave ratio, includes rectangular waveguide 1, rectangular waveguide 1's one end is provided with waveguide energy feeding flange 2, rectangular waveguide 1's the other end is provided with waveguide end plate 3, rectangular waveguide 1's wide face is provided with several crack mouths 11 that are the same in size, rectangular waveguide 1's wide face is close to one of waveguide end plate 3 is provided with several adjustable pins 4, adjustable pin 4 with waveguide end plate 3's nearest distance is 1/4 waveguide wavelength, every two adjacent adjustable pins 4 are 1/4 waveguide wavelength apart from each other, adjustable pin 4's diameter is 6-30mm, adjustable pin 4's control range is 10-40 mm.
In a specific embodiment of the present invention, the number of the adjustable pins 4 is three, and three of the adjustable pins 4 are all vertically disposed on the wide surface of the rectangular waveguide 1.
In a specific embodiment of the present invention, the number of the slit openings 11 is 4-20, the slit openings 11 are uniformly arranged in two upper and lower rows along the axial direction of the rectangular waveguide 1, and the positions of the slit openings 11 in the first row and the second row in the longitudinal direction are staggered from each other.
In the utility model discloses a specific embodiment, be provided with waveguide mounting flange 5 on rectangular waveguide 1, rectangular waveguide 1 is through waveguide mounting flange 5 fixedly connected with microwave cavity 6, be provided with material 7 in the microwave cavity 6.
In a specific embodiment of the present invention, the material of the adjustable pin 4 is aluminum material or copper material.
For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention are explained in detail through specific use modes below.
When specifically using, according to the utility model discloses a slab waveguide slot antenna of adjustable standing-wave ratio, as shown in figure one, be equipped with slot 11 on rectangular waveguide 1's the wide face, slot 11's quantity is 4-20 and crisscross setting from top to bottom, rectangular waveguide 1's wide face is close to one of waveguide end plate 3 and serves and be provided with three adjustable pin 4, adjustable pin 4 is 1/4 waveguide wavelength with waveguide end plate 3's nearest distance, the distance between every two adjacent adjustable pin 4 is 1/4 waveguide wavelength, adjustable pin 4's diameter is 6-30mm, adjustable pin 4's control range is 10-40mm, the magnetron that sets up the frequency and be 2.45GHZ is the microwave source.
As shown in fig. two, the rectangular waveguide tube 1 is fixedly connected with a microwave cavity 6 through a waveguide mounting flange 5, and a material 7 is filled in the microwave cavity 6. According to the difference of the materials 7, the terminal testing instrument can check and ensure that the standing-wave ratio is adjusted to be below 1.1 and the microwave energy feedback efficiency is over 99 percent by changing the depth of the adjustable pin 4 between 10 and 40 millimeters, so that the microwave energy feedback efficiency of the crack antenna and the heating efficiency of the materials are improved. The utility model discloses can wide application in adopt the dull and stereotyped crack antenna of microwave to present equipment such as microwave drying oven, microwave roller kilns, microwave push pedal kiln of ability.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A planar waveguide slot antenna with adjustable standing-wave ratio comprises a rectangular waveguide tube (1), it is characterized in that one end of the rectangular waveguide tube (1) is provided with a waveguide energy feeding flange (2), the other end of the rectangular waveguide tube (1) is provided with a waveguide end plate (3), the wide surface of the rectangular waveguide tube (1) is provided with a plurality of crack openings (11) with the same size, a plurality of adjustable pins (4) are arranged at one end of the wide surface of the rectangular waveguide tube (1) close to the waveguide end plate (3), the nearest distance between the adjustable pins (4) and the waveguide end plate (3) is 1/4 waveguide wavelength, the distance between every two adjacent adjustable pins (4) is 1/4 waveguide wavelength, the diameter of the adjustable pin (4) is 6-30mm, and the adjusting range of the adjustable pin (4) is 10-40 mm.
2. The planar waveguide slot antenna with adjustable standing-wave ratio according to claim 1, wherein the number of the adjustable pins (4) is three, and all three adjustable pins (4) are vertically arranged on the wide surface of the rectangular waveguide tube (1).
3. The planar waveguide slot antenna with the adjustable standing-wave ratio as claimed in claim 1, wherein the number of the slot openings (11) is 4-20, the slot openings (11) are uniformly arranged in two upper and lower rows along the axial direction of the rectangular waveguide tube (1), and the slot openings (11) in the first row and the slot openings (11) in the second row are arranged in a staggered manner in the longitudinal direction.
4. The planar waveguide slot antenna with the adjustable standing-wave ratio according to claim 1, wherein a waveguide mounting flange (5) is arranged on the rectangular waveguide tube (1), the rectangular waveguide tube (1) is fixedly connected with a microwave cavity (6) through the waveguide mounting flange (5), and a material (7) is arranged in the microwave cavity (6).
5. The slab waveguide slot antenna with adjustable standing-wave ratio as claimed in claim 1, wherein the material of the adjustable pin (4) is aluminum or copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120767883.4U CN214589261U (en) | 2021-04-15 | 2021-04-15 | Planar waveguide slot antenna with adjustable standing-wave ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120767883.4U CN214589261U (en) | 2021-04-15 | 2021-04-15 | Planar waveguide slot antenna with adjustable standing-wave ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214589261U true CN214589261U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120767883.4U Active CN214589261U (en) | 2021-04-15 | 2021-04-15 | Planar waveguide slot antenna with adjustable standing-wave ratio |
Country Status (1)
| Country | Link |
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| CN (1) | CN214589261U (en) |
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2021
- 2021-04-15 CN CN202120767883.4U patent/CN214589261U/en active Active
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