CN112310585B - V-band waveguide load - Google Patents
V-band waveguide load Download PDFInfo
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- CN112310585B CN112310585B CN202010978184.4A CN202010978184A CN112310585B CN 112310585 B CN112310585 B CN 112310585B CN 202010978184 A CN202010978184 A CN 202010978184A CN 112310585 B CN112310585 B CN 112310585B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/22—Attenuating devices
- H01P1/222—Waveguide attenuators
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Abstract
The invention discloses a V-band waveguide load which is characterized by comprising a waveguide cavity (1), a first absorber (2) and a second absorber (3); the waveguide cavity (1) is provided with an opening at one side and is used for receiving incident microwaves; the first absorber (2) is bonded to a first inner wall (10) of the waveguide cavity (1), and the second absorber (3) is bonded to a second inner wall (12) of the waveguide cavity (1); the first absorber (2) and the second absorber (3) are positioned in a staggered quarter waveguide wavelength in the direction of incidence of the microwaves, wherein the first inner wall (10) and the second inner wall (12) are arranged opposite one another in a first direction perpendicular to the direction of incidence of the microwaves.
Description
Technical Field
The invention relates to the field of microwave passive devices, in particular to a V-band waveguide load.
Background
The waveguide load is widely applied to microwave passive devices such as isolators, ferrite switches and the like. The traditional waveguide load absorber is a single absorber, and is long in length and large in volume. When the device works in a V frequency band, the electrical size is in millimeter level, and the size of the device is very small. The waveguide load occupies a large volume in integrated applications such as ferrite switches, and needs to be miniaturized.
Disclosure of Invention
It is an object of the present invention to provide a V-band waveguide load that addresses at least one of the above problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a V-band waveguide load, comprising,
the waveguide cavity, the first absorber and the second absorber;
the waveguide cavity is provided with an opening at one side and is used for receiving incident microwaves;
the first absorber is arranged on a first inner wall of the waveguide cavity;
the second absorber is arranged on a second inner wall of the waveguide cavity;
the first absorber and the second absorber are positioned in the incident direction of the microwaves with an offset quarter waveguide wavelength,
the first inner wall and the second inner wall are oppositely arranged in a first direction perpendicular to the incidence direction of the microwaves.
The first absorber is wedge-shaped and comprises a first inclined part close to the opening and a first plane part far away from the opening, and the sectional area of the first inclined part towards the opening direction is gradually reduced.
The second absorber is wedge-shaped and comprises a second inclined part close to the opening and a second flat part far away from the opening, and the sectional area of the second inclined part towards the opening direction is gradually reduced.
The inclined plane of the first inclined part and the included angle of the incident direction of the microwave are 10-45 degrees.
The inclined plane of the second inclined part and the included angle of the incident direction of the microwave are 10-45 degrees.
The sum of the heights of the first and second planar portions in the first direction is equal to the height of the cavity in the first direction.
The waveguide cavity is made of metal materials, and the first absorber and the second absorber are made of non-metal materials.
In the V-band waveguide load, the upper absorber and the lower absorber have smaller load volume than the traditional single absorber, the volume is greatly reduced in the integrated application of a ferrite switch and the like, and the miniaturization of the device is realized.
Drawings
Fig. 1 is a cross-sectional view of a V-band waveguide load according to the present invention.
Fig. 2 is a schematic diagram of an absorber in a V-band waveguide load assembly according to the present invention.
Fig. 3 is a schematic diagram of an absorber in a V-band waveguide load assembly according to the present invention.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
As shown in fig. 1, an embodiment of the present invention provides a V-band waveguide load, and a waveguide cavity 1 is a rectangular waveguide with an opening on one side and is used for receiving incident microwaves. Fig. 1 shows a schematic cross-sectional view of the waveguide in the microwave transmission direction (i.e., the x-direction in the figure). It will be appreciated by those skilled in the art that the waveguide loads of the present application are not limited to rectangular shapes, which may be cylindrical, etc.
The V-band waveguide load further comprises: a first absorbent 2 and a second absorbent 3.
The first absorber 2 is arranged on a first inner wall of the waveguide cavity, i.e. the top wall 10 of the cavity in the direction of the y-axis, which is perpendicular to the x-axis in the figure. In one particular example, the first absorbent 2 may be adhesively disposed on the top wall 10.
The second absorber 3 is arranged on a second inner wall of the waveguide cavity, i.e. on the bottom wall 12 of the cavity in the direction of the y-axis, which is perpendicular to the x-axis in the figure. In a particular example, the second absorbent body 3 can be arranged on the top wall 12 in an adhesive manner.
The first absorber 2 and the second absorber 3 are staggered by a quarter of the waveguide wavelength in the incident direction of the microwave, so that standing waves in the waveguide load of the V-band are easy to match, and the absorption effect on the microwave is better. As shown in fig. 1.
The first absorber is wedge-shaped and, as shown in fig. 2, comprises a first inclined portion 20 close to the opening and a first flat portion 22 remote from the opening, the first inclined portion having a cross-sectional area that gradually decreases in a direction toward the opening.
The second absorber is wedge-shaped like the first absorber, and as shown in fig. 2, includes a second inclined portion close to the opening and a second flat portion distant from the opening, and the second inclined portion has a cross-sectional area gradually decreasing toward the opening.
The inclined planes of the first inclined part and the second inclined part respectively form an included angle beta of 10-45 degrees with the incident direction of the microwave, so that the absorption effect is guaranteed.
In a specific example, the first absorber and the second absorber are made of nonmetal, and the waveguide cavity is made of metal.
In an alternative embodiment, the first and second absorbents are shaped as shown in fig. 3. In contrast to the structure in fig. 2, the inclined portion intersects the bottom surface in fig. 3.
In a preferred example, as also shown in fig. 1, the sum of the lengths of the first absorber and the second absorber in the y-direction is equal to the length of the waveguide cavity in the y-direction. That is, there is no gap between the first absorber and the second absorber in the y-direction.
In the scheme provided by the invention, the upper absorber and the lower absorber have smaller load volume than the traditional single absorber, the volume is greatly reduced in the integrated application of a ferrite switch and the like, and the miniaturization of the device is realized.
The invention aims to provide a V-band waveguide load, solves the problem that the volume of the traditional waveguide load is large in the integrated application of ferrite switches and the like, and provides a miniaturized scheme.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (5)
1. A V-band waveguide load, comprising,
the waveguide cavity comprises a waveguide cavity (1), a first absorber (2) and a second absorber (3);
the waveguide cavity (1) is provided with an opening at one side and is used for receiving incident microwaves;
the first absorber (2) is arranged on a first inner wall (10) of the waveguide cavity;
the second absorber (3) is arranged on a second inner wall (12) of the waveguide cavity;
the first absorber (2) and the second absorber (3) are positioned in the incident direction of the microwaves with an offset quarter waveguide wavelength,
the first absorber is wedge-shaped and comprises a first inclined part close to the opening and a first plane part far away from the opening, the sectional area of the first inclined part towards the opening direction is gradually reduced, and the short side of the first absorber in the microwave incidence direction is not in contact with the first inner wall;
the second absorber is wedge-shaped and comprises a second inclined part close to the opening and a second flat part far away from the opening, the sectional area of the second inclined part towards the opening direction is gradually reduced, and the short side of the second absorber in the microwave incidence direction is not in contact with the second inner wall;
wherein the first inner wall (10) and the second inner wall (12) are arranged oppositely in a first direction perpendicular to the incidence direction of the microwaves.
2. The V-band waveguide load of claim 1,
the inclined plane of the first inclined part and the included angle of the incident direction of the microwave are 10-45 degrees.
3. The V-band waveguide load of claim 1,
the inclined plane of the second inclined part and the included angle of the incident direction of the microwave are 10-45 degrees.
4. The V-band waveguide load of claim 1,
the sum of the heights of the first and second planar portions in the first direction is equal to the height of the cavity in the first direction.
5. The V-band waveguide load according to any one of claims 1-4,
the waveguide cavity is made of metal materials, and the first absorber and the second absorber are made of non-metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010978184.4A CN112310585B (en) | 2020-09-17 | 2020-09-17 | V-band waveguide load |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010978184.4A CN112310585B (en) | 2020-09-17 | 2020-09-17 | V-band waveguide load |
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| CN112310585A CN112310585A (en) | 2021-02-02 |
| CN112310585B true CN112310585B (en) | 2021-12-03 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04158601A (en) * | 1990-10-23 | 1992-06-01 | Nec Eng Ltd | Waveguide type terminator |
| CN202282438U (en) * | 2011-09-23 | 2012-06-20 | 宜宾红星电子有限公司 | Novel dry type waveguide dummy load |
| CN104362420A (en) * | 2014-10-30 | 2015-02-18 | 中国电子科技集团公司第四十一研究所 | Broadband full-port matched waveguide power distributing/combining method |
| CN106803611A (en) * | 2016-12-29 | 2017-06-06 | 中国航天时代电子公司 | A kind of waveguide load |
| EP3331091A1 (en) * | 2016-12-02 | 2018-06-06 | Honeywell International Inc. | Waveguide with lossy back short |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2723850B2 (en) * | 1995-08-31 | 1998-03-09 | 日本電気株式会社 | Electromagnetic shielding evaluation device |
| CN102694225A (en) * | 2012-06-25 | 2012-09-26 | 世达普(苏州)通信设备有限公司 | Mini-type waveguide type circulator |
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2020
- 2020-09-17 CN CN202010978184.4A patent/CN112310585B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04158601A (en) * | 1990-10-23 | 1992-06-01 | Nec Eng Ltd | Waveguide type terminator |
| JP2670640B2 (en) * | 1990-10-23 | 1997-10-29 | 日本電気エンジニアリング株式会社 | Waveguide termination |
| CN202282438U (en) * | 2011-09-23 | 2012-06-20 | 宜宾红星电子有限公司 | Novel dry type waveguide dummy load |
| CN104362420A (en) * | 2014-10-30 | 2015-02-18 | 中国电子科技集团公司第四十一研究所 | Broadband full-port matched waveguide power distributing/combining method |
| EP3331091A1 (en) * | 2016-12-02 | 2018-06-06 | Honeywell International Inc. | Waveguide with lossy back short |
| CN106803611A (en) * | 2016-12-29 | 2017-06-06 | 中国航天时代电子公司 | A kind of waveguide load |
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| CN112310585A (en) | 2021-02-02 |
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