CN115036663B - Knife-shaped short-size waveguide matching load - Google Patents
Knife-shaped short-size waveguide matching load Download PDFInfo
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- CN115036663B CN115036663B CN202111661019.7A CN202111661019A CN115036663B CN 115036663 B CN115036663 B CN 115036663B CN 202111661019 A CN202111661019 A CN 202111661019A CN 115036663 B CN115036663 B CN 115036663B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/24—Terminating devices
- H01P1/26—Dissipative terminations
- H01P1/264—Waveguide terminations
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Abstract
The invention provides a knife-shaped short-size waveguide matching load, which comprises a waveguide rectangular pipe, wherein the left end of the waveguide rectangular pipe is fixedly connected with the vertical part of a T-shaped end cover, the transverse part of the T-shaped end cover is arranged in the waveguide rectangular pipe, a knife-shaped load piece is arranged in the middle of the right end of the transverse part of the T-shaped end cover, and the load piece is arranged in the waveguide rectangular pipe, and compared with the prior art, the knife-shaped short-size waveguide matching load has the following beneficial effects: the loading piece is designed into a knife shape, so that the length of the whole load is shortened to 0.2 lambdag, the position of the loading piece is fixed at the central position of the waveguide, the debugging is convenient, the device has the performances of small volume and light weight, can be widely applied to an array antenna terminal, and can be used in a system meeting the miniaturization requirement.
Description
Technical Field
The invention relates to a knife-shaped short-size waveguide matching load, and belongs to the technical field of waveguide matching loads.
Background
In modern radar antenna systems, waveguide matched loading is widely used as a termination device. In order to realize the electrical indexes in the required frequency band, the traditional waveguide matching load is generally realized in the form of two load sheets, one is in the shape of a wedge, the length of the load sheet is generally 2-4 lambdag of low-frequency, the other is in the shape of a step matching load, the length of the load sheet is generally about 1 lambdag of low-frequency, the lengths of the load sheet are relatively long, and in the process of mass production, each product generally moves the load sheet to divide the position in the waveguide due to poor position consistency, so that the debugging indexes are achieved, and the mass production is not facilitated.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a knife-shaped short-size waveguide matched load so as to solve the problems in the prior art.
In order to achieve the above object, the present invention is realized by the following technical scheme: the utility model provides a sword-shaped short-size waveguide matching load, includes waveguide rectangular tube, waveguide rectangular tube left end fixed connection T-shaped end cover's vertical portion, and T-shaped end cover's horizontal portion sets up inside the waveguide rectangular tube, T-shaped end cover's horizontal portion right-hand member intermediate position installation outward appearance is sword-shaped load piece and load piece installs inside the waveguide rectangular tube, waveguide rectangular tube outer end right side edge position fixed connection frame mounting panel and frame mounting panel right-hand member face coincide with waveguide rectangular tube right-hand member face together, frame mounting panel outer end equidistance inlay and be a plurality of concatenation formula rectangular plates that are used for installing bolt that the rectangle was arranged, T-shaped end cover's horizontal portion right-hand member intermediate position sets up a word recess of vertical arrangement, the load piece left end extends into in the word recess, both ends all equidistance set up a plurality of draw-in grooves and draw-in groove on T-shaped end cover's horizontal portion right-hand member around the word recess, the left edge positions of the front end and the rear end of the load sheet are fixedly connected with a plurality of clamping blocks at equal intervals, the clamping blocks are positioned in clamping grooves, a plurality of placing grooves which are arranged in a rectangular mode are formed in the outer end of the frame type mounting plate at equal intervals, positioning grooves are formed in the outer sides of the opposite ends of the placing grooves, the positioning grooves are processed in the outer ends of the frame type mounting plate, the opposite ends of the spliced rectangular plate are fixedly connected with positioning blocks which are fixed in the positioning grooves through bolts, circular inner cavities are processed in the middle positions of the inner parts of the spliced rectangular plate, macropores are formed in the middle positions of the left end and the right end of the spliced rectangular plate, the two macropores are communicated with the circular inner cavities, a plurality of fan-shaped plates which are arranged in a circular mode are movably mounted in equal intervals in the inner parts of the circular inner cavities, a plurality of fan-shaped surfaces are formed in the inner ends of the fan-shaped plates, the novel triangular guide block comprises a plurality of arc-shaped surfaces, wherein the arc-shaped surfaces form small Kong Juxiao hole center lines for mounting bolts and are overlapped with a large hole center line, an elastic piece is arranged between the outer end of the sector-shaped plate and the annular inner wall of a circular inner cavity, the circular inner wall of the circular inner cavity is fixedly connected with a plurality of guide pieces in a circular arrangement at equal intervals, the outer sides of the guide pieces are provided with elastic pieces, a guide concave hole is formed in the middle position of the outer end of the sector-shaped plate, the inner ends of the guide pieces are slidably connected with the guide concave hole and extend into the guide concave hole, the right end of the sector-shaped plate is fixedly connected with a triangular guide block and the inclined surface of the triangular guide block is inwards arranged, the left end of the inclined surface of the triangular guide block is connected with the outer end of the corresponding arc-shaped surface, and the triangular guide block is arranged in the large hole on the right side.
Further, the loading piece is composed of a nonmetallic material carbonyl iron material.
Further, the waveguide rectangular tube and the frame-type mounting plate are of an integrated forming structure.
Further, two corner positions of the spliced rectangular plate towards the inner end are provided with round corners.
The invention has the beneficial effects that: the invention discloses a knife-shaped short-size waveguide matched load.
1. The loading piece is designed into a knife shape, so that the length of the whole load is shortened to 0.2 lambdag, the position of the loading piece is fixed at the central position of the waveguide, the debugging is convenient, the device has the performances of small volume and light weight, can be widely applied to an array antenna terminal, and can be used in a system meeting the miniaturization requirement.
2. The left end of the load slide can be inserted into the linear groove of the T-shaped end cover, so that the load slide is positioned and mounted at the middle position of the right end of the T-shaped end cover, the purpose of meeting the use can be achieved without debugging during batch assembly, the work efficiency is high, the load slide is effectively prevented from being offset along the direction of the linear groove by utilizing the clamping blocks and the clamping grooves, the assembly quality is improved, and the applicability is good.
3. Placing splice formula rectangular plate into the standing groove to make the locating piece insert in the constant head tank, and utilize the bolt to fix the locating piece in the constant head tank, thereby make convenient dismouting between splice formula rectangular plate and the standing groove, convenient equipment and maintenance, run through standing groove and splice formula rectangular plate with the bolt and with carrier threaded connection again, the threaded rod portion of bolt has one section exposure portion and exposure portion to be in the standing groove between splice formula rectangular plate and carrier this moment, can cut off the exposure portion of bolt and handle, reach the purpose of convenient dismantlement of waveguide rectangular tube, convenient maintenance.
4. The sector plate and the annular inner wall of the circular inner cavity are designed through the spring connection, the bolt can be shifted, the sector plate moves along with the bolt, the bolt is abutted with the fixing hole and is in threaded connection, the sector plate still can limit the bolt, the purpose of convenient installation between the waveguide rectangular pipe and the carrier is achieved, the operation is convenient, and the working efficiency is good.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a matched load configuration of a short-sized waveguide in the form of a blade in accordance with the present invention;
FIG. 2 is a perspective view of a T-shaped end cap in a short-length waveguide matched load of the present invention;
FIG. 3 is a perspective view of a load carrier in a blade-shaped short-sized waveguide matched load according to the present invention
FIG. 4 is a perspective view of a frame mounting plate in a blade-shaped short-sized waveguide matched load according to the present invention
FIG. 5 is a perspective view of a frame mounting plate in a blade-shaped short-sized waveguide matched load according to the present invention
FIG. 6 is a cross-sectional view of a blade-shaped short-sized waveguide matched load mid-frame mounting plate of the present invention
FIG. 7 is an enlarged view of the portion A in FIG. 6
FIG. 8 is a perspective view of a sector plate in a matched load of a short-sized waveguide in the form of a knife
In the figure: 1-waveguide rectangular tube, 2-T-shaped end cover, 3-frame mounting plate, 4-spliced rectangular plate, 5-loading piece, 21-straight groove, 22-clamping groove, 31-placing groove, 32-positioning groove, 41-positioning block, 42-large hole, 43-sector plate, 44-spring, 45-circular inner cavity, 46-circular rod, 47-guiding concave hole, 51-clamping block, 431-triangular guiding block and 432-arc surface.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1 and 3, the present invention provides a technical solution: the utility model provides a sword-shaped short dimension waveguide matches load, including waveguide rectangular tube 1, through waveguide rectangular tube 1, for T type end cover 2, load piece 5 and frame mounting panel 3 provide the installation carrier, waveguide rectangular tube 1 can adopt the waveguide of standard BJ32, waveguide rectangular tube 1 left end fixed connection T type end cover 2 'S vertical portion, and the horizontal portion setting of T type end cover 2 is inside waveguide rectangular tube 1, through T type end cover 2, on the one hand, provide the installation carrier for load piece 5, on the other hand with waveguide rectangular tube 1 left end opening shutoff, the horizontal portion right-hand member intermediate position of T type end cover 2 is through the load piece 5 that epoxy glue installation outward appearance is the sword-shaped, and load piece 5 installs inside waveguide rectangular tube 1, and make load piece 5 upper and lower both ends and waveguide rectangular tube 1 inside upper and lower wall middle part contact position through the epoxy glue, load piece 5 comprises nonmetallic material carbonyl iron material, T type end cover 2, load piece 5 and waveguide tube 1 cooperation use, S frequency band 22% cover has been realized, technical index satisfies VSWR 1.2' S total length requirement less than or equal to 35mm in the frequency range.
Specifically, the load piece 5 is designed into a knife shape, so that the length of the whole load is shortened to 0.2λg, and the position of the load piece 5 is fixed at the center of the waveguide, so that the device is convenient to debug, has the performances of small volume and light weight, can be widely applied to an array antenna terminal, and can be used in a system meeting the miniaturization requirement.
Referring to fig. 1, 2 and 3, one embodiment of the present invention: a vertical-arranged straight groove 21 is formed in the middle position of the right end of the transverse part of the T-shaped end cover 2, the T-shaped end cover 2 and the load piece 5 are positioned and installed through the straight groove 21, the left end of the load piece 5 extends into the straight groove 21, a plurality of clamping grooves 22 can be formed in the front end and the rear end of the straight groove 21 at equal intervals, the clamping grooves 22 are formed in the right end of the transverse part of the T-shaped end cover 2, an installation space is provided for the clamping blocks 51 through the clamping grooves 22, the positions of the left edges of the front end and the rear end of the load piece 5 are fixedly connected with the clamping blocks 51 at equal intervals, the clamping blocks 51 are positioned in the clamping grooves 22, and the strength of the load piece 5 is increased through the clamping blocks 51.
Specifically, can insert the straight recess 21 of T type end cover 2 with the load slide 5 left end, reuse epoxy glue makes load slide 5 and the fastening installation of T type end cover 2 to make load slide 5 location install the intermediate position of T type end cover 2 right-hand member, the purpose that just can satisfy the use of exempting from to debug when reaching the batch equipment, work efficiency is high, and fixture block 51 cartridge on the load slide 5 is on draw-in groove 22 this moment, effectively avoids load slide 5 to take place the skew phenomenon along straight recess 21 direction, promotes the equipment quality, and the suitability is good.
Referring to fig. 1, 4 and 5, one embodiment of the present invention: the waveguide rectangular tube 1 outer end right side edge position fixed connection frame mounting panel 3 and frame mounting panel 3 right-hand member face and waveguide rectangular tube 1 right-hand member face coincidence are in the same place, through frame mounting panel 3, offer the carrier for standing groove 31 and constant head tank 32, waveguide rectangular tube 1 is integrated into one piece structure with frame mounting panel 3, the design of integrated into one piece structure, be convenient for production, a plurality of standing grooves 31 that are used for placing concatenation formula rectangular plate 4 that are rectangular arrangement are offered to the equidistance of frame mounting panel 3 outer end, through standing groove 31, provide the installation space for concatenation formula rectangular plate 4, set up the concatenation formula rectangular plate 4 that is used for the mounting bolt in the standing groove 31, through concatenation formula rectangular plate 4, be used for the installation of bolt, thereby reach and install frame mounting panel 3 on the carrier, two edges and corners position all offer the carrier towards interior end, make things convenient for concatenation formula rectangular plate 4 to place in the standing groove 31 on the one side, on the other hand, reduce the sharpness of concatenation formula rectangular plate 4, the opposite both ends of standing groove 31 all set up constant head tank 32 and constant head tank 32 processing is at the locating piece 3 outer end, through the standing groove 32, through setting up space for the setting piece 41, and fixing location piece 41 are fixed connection rectangular plate 41, make between the opposite installation piece 41 and the opposite side of locating piece 4.
Specifically, when the waveguide rectangular tube 1 is installed, the spliced rectangular plate 4 is placed in the placing groove 31, the positioning block 41 is inserted into the positioning groove 32, and the positioning block 41 is fixed in the positioning groove 32 by utilizing the bolt, so that the spliced rectangular plate 4 and the placing groove 31 are convenient to assemble and disassemble and maintain, then the frame type mounting plate 3 is placed on a carrier, the bolt penetrates through the placing groove 31 and the spliced rectangular plate 4 and is in threaded connection with the carrier, so that the waveguide rectangular tube 1 is fixed on the carrier, at the moment, a section of exposure part is arranged in the placing groove 31 between the spliced rectangular plate 4 and the carrier at the threaded rod part of the bolt, and when the bolt cannot be disassembled, a cutting tool can be extended into the placing groove 31 and cut off the exposure part of the bolt, so that the waveguide rectangular tube 1 is convenient to disassemble and maintain.
Referring to fig. 5, 6 and 7, one embodiment of the present invention: the inside intermediate position processing circular inner chamber 45 of concatenation formula rectangular plate 4, through circular inner chamber 45, for elastic component and sector plate 43 provide the installation space, the macropore 42 is all offered to both ends intermediate position about concatenation formula rectangular plate 4, and two macropores 42 all with circular inner chamber 45 intercommunication arrangement, circular inner chamber 45 inside equidistance movable mounting is a plurality of sector plates 43 that the circular was arranged, through sector plate 43, can restrict the bolt of installation, arc face 432 is all offered towards the inner to a plurality of sector plates 43, a plurality of arc face 432 form the little Kong Juxiao hole central line that is used for installing the bolt and macropore 42 central line coincidence, the aperture and the macropore 42 cooperation that a plurality of arc face 432 formed use, enable the bolt to pass concatenation formula rectangular plate 4, set up the elastic component between sector plate 43 outer end and the circular inner chamber 45 annular inner wall, through the elastic component, enable sector plate 43 inwards or outwards remove, the elastic component can adopt spring 44, circular inner chamber 45 annular inner wall equidistance fixed connection is a plurality of guides and the guide outside setting up the elastic component that the circular arrangement, the guide 47 is seted up to the recess hole 47 to sector plate 43 outer end intermediate position, guide 47 inner sliding connection guide 47 and guide 47 can use the guide 47 to extend into the recess hole 47, can use guide 47 to move.
Specifically, when the waveguide rectangular tube 1 is installed, the bolt passes through the large hole 42 and the small holes formed by the plurality of arc surfaces 432, and the plurality of sector plates 43 are moved outwards under the action of the bolt, so that the spring 44 is compressed, elastic force is generated by the spring 44, then the bolt is inserted into the fixing hole on the carrier and is in threaded connection with the fixing hole, the waveguide rectangular tube 1 is fastened and installed on the carrier, at the moment, the sector plates 43 are moved inwards under the elastic force of the spring 44, so that the threaded rod parts of the bolt are clamped, the nut parts of the bolt are limited, when the bolt and the fixing hole are misplaced, the sector plates 43 are connected with the annular inner wall of the circular inner cavity 45 through the spring 44, so that offset movement can be performed on the bolt, the sector plates 43 can move along with the bolt, the bolt is abutted with the fixing hole and is in threaded connection, the sector plates 43 still limit the bolt, the purpose of convenient installation between the waveguide tube 1 and the carrier is achieved, the operation is convenient, and the work efficiency is good.
Referring to fig. 8, one embodiment of the present invention: the right end of the sector plate 43 is fixedly connected with the triangular guide block 431 towards the inner side, the inclined surface of the triangular guide block 431 is arranged inwards, the left end of the inclined surface of the triangular guide block 431 is connected with the outer end of the corresponding arc surface 432, the triangular guide block 431 is arranged in the large hole 42 on the right side, specifically, the triangular guide block 431 is installed on the sector plate 43, when a bolt is installed, the top of the bolt is firstly contacted with the inclined surface of the triangular guide block 431, and then the triangular guide block 431 can be pushed to move outwards, so that the sector plate 43 moves outwards, and the operation that the bolt penetrates through the spliced rectangular plate 4 is facilitated.
The specific embodiment is as follows: during assembly, the appearance of the load sheet 5 is processed into a knife shape, the length of the load sheet 5 is shortened to 0.2λg of low-frequency, then the load sheet 5 is inserted into the linear groove 21 of the T-shaped end cover 2, and then the load sheet 5 and the T-shaped end cover 2 are fastened and installed by epoxy glue, so that the load sheet 5 is positioned and installed at the middle position of the right end of the T-shaped end cover 2, then the load sheet 5 is inserted into the waveguide rectangular tube 1, then the T-shaped end cover 2 is installed at the left end of the waveguide rectangular tube 1, the position of the load sheet 5 is fixed at the center of the waveguide, debugging can be avoided during subsequent batch assembly, then the spliced rectangular plate 4 is placed into the placing groove 31, the positioning block 41 is inserted into the positioning groove 32, and the positioning block 41 is fixed in the positioning groove 32 by using bolts, and assembly of a product is realized.
When the waveguide rectangular tube 1 is installed, the bolt passes through the left large hole 42, the top of the bolt is contacted with the inclined surface of the triangular guide block 431, the triangular guide block 431 can be pushed to move outwards, the sector plate 43 can move outwards, the spring 44 can be compressed, elastic force is generated by the spring 44, the bolt passes through the large hole 42 and small holes formed by the arc surfaces 432, and is in butt joint with the fixing holes on the carrier and is in threaded connection with the fixing holes, so that the waveguide rectangular tube 1 is fastened and installed on the carrier, and at the moment, the sector plate 43 moves inwards under the elastic force of the spring 44, so that the threaded rod portion of the bolt is clamped, and the nut portion of the bolt is limited.
The present disclosure describes embodiments in terms of which each embodiment does not comprise a separate embodiment, and this description is for clarity only, and those skilled in the art should consider the disclosure as a whole, and the embodiments in the examples may be combined appropriately to form other embodiments that will be understood by those skilled in the art.
Claims (4)
1. The utility model provides a sword-shaped short dimension waveguide matches load, includes waveguide rectangular tube (1), its characterized in that: the utility model discloses a rectangular waveguide pipe, which is characterized in that the left end of the rectangular waveguide pipe (1) is fixedly connected with the vertical part of a T-shaped end cover (2), the transverse part of the T-shaped end cover (2) is arranged inside the rectangular waveguide pipe (1), a knife-shaped load piece (5) is arranged at the middle position of the right end of the transverse part of the T-shaped end cover (2), the load piece (5) is arranged inside the rectangular waveguide pipe (1), the right side edge position of the outer end of the rectangular waveguide pipe (1) is fixedly connected with a frame type mounting plate (3) and the right end surface of the frame type mounting plate (3) coincides with the right end surface of the rectangular waveguide pipe (1), a plurality of splicing rectangular plates (4) which are arranged in a rectangular manner are inlaid at equal intervals at the outer end of the frame type mounting plate (3), a plurality of vertically arranged character grooves (21) are formed in the middle position of the right end of the transverse part of the T-shaped end cover (2), the left end of the load piece (5) extends into the character groove (21), a plurality of clamping grooves (22) are uniformly arranged at the front end and rear end of the character groove (21) and the clamping grooves (22) are uniformly distributed at the front end of the right end of the rectangular end cover (2) and are uniformly distributed at the front end of the right end of the rectangular end (2) and are fixedly arranged at the right end of the rectangular end cover (2) at equal distance from the right end of the rectangular end cover (3), the positioning groove (31) is arranged at the outer ends of the frame-type mounting plate (3) towards the outer sides by arranging positioning grooves (32) and positioning grooves (32), the positioning blocks (41) are fixedly connected with the outer sides of the frame-type mounting plate (3) towards the outer sides by the opposite ends of the spliced rectangular plate (4), the positioning blocks (41) are fixed in the positioning grooves (32) through bolts, a circular inner cavity (45) is processed at the middle position inside the spliced rectangular plate (4), macropores (42) are formed in the middle position of the left end and the right end of the spliced rectangular plate (4), two macropores (42) are communicated with the circular inner cavity (45), a plurality of sector plates (43) are movably arranged at the inner sides at equal intervals in the circular inner cavity (45), arc surfaces (432) are formed at the inner sides, the arc surfaces (432) are respectively, the center lines of small Kong Juxiao holes for mounting bolts coincide with the center lines of the macropores (42), elastic pieces are arranged between the outer ends of the spliced rectangular plate (43) and the circular inner walls, the circular inner walls are fixedly connected with the circular inner walls, a plurality of guide pieces are fixedly arranged at the inner ends of the circular inner walls, the circular inner walls are connected with the circular inner ends of the circular inner walls, the guide pieces are connected with the guide pieces (47) and extend out of the guide pieces, the guide pieces are arranged at the inner ends of the guide pieces (47 are arranged at the middle positions, the right end of the sector plate (43) is fixedly connected with a triangular guide block (431) inwards, inclined planes of the triangular guide block (431) are arranged inwards, the left end of the inclined planes of the triangular guide block (431) is connected with the outer end of a corresponding arc-shaped surface (432), and the triangular guide block (431) is arranged in a large hole (42) located on the right side.
2. A short-sized waveguide matched load in the form of a blade according to claim 1, wherein: the loading piece (5) is made of a nonmetallic carbonyl iron material.
3. A short-sized waveguide matched load in the form of a blade according to claim 1, wherein: the waveguide rectangular tube (1) and the frame type mounting plate (3) are of an integrated forming structure.
4. A short-sized waveguide matched load in the form of a blade according to claim 1, wherein: the two edges and corners of the spliced rectangular plate (4) facing the inner end are provided with fillets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111661019.7A CN115036663B (en) | 2021-12-30 | 2021-12-30 | Knife-shaped short-size waveguide matching load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111661019.7A CN115036663B (en) | 2021-12-30 | 2021-12-30 | Knife-shaped short-size waveguide matching load |
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| Publication Number | Publication Date |
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| CN115036663A CN115036663A (en) | 2022-09-09 |
| CN115036663B true CN115036663B (en) | 2023-10-20 |
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| CN202111661019.7A Active CN115036663B (en) | 2021-12-30 | 2021-12-30 | Knife-shaped short-size waveguide matching load |
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|---|---|---|---|---|
| US3336543A (en) * | 1965-06-07 | 1967-08-15 | Andrew Corp | Elliptical waveguide connector |
| CN2108996U (en) * | 1991-12-19 | 1992-07-01 | 东南大学 | Circular groove waveguide matched load |
| CN2126467U (en) * | 1992-07-01 | 1992-12-30 | 机械电子工业部第十二研究所 | High-power small volume matched-load structure |
| CN101694903A (en) * | 2009-10-22 | 2010-04-14 | 西安空间无线电技术研究所 | Dual-arm coupling quadrature mode coupler with high cross polarization discrimination |
| CN102769161A (en) * | 2012-04-24 | 2012-11-07 | 中电科微波通信(上海)有限公司 | Waveguide load |
| CN112599945A (en) * | 2020-12-29 | 2021-04-02 | 江苏恒达微波技术开发有限公司 | Waveguide short-dimension water load |
-
2021
- 2021-12-30 CN CN202111661019.7A patent/CN115036663B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3336543A (en) * | 1965-06-07 | 1967-08-15 | Andrew Corp | Elliptical waveguide connector |
| CN2108996U (en) * | 1991-12-19 | 1992-07-01 | 东南大学 | Circular groove waveguide matched load |
| CN2126467U (en) * | 1992-07-01 | 1992-12-30 | 机械电子工业部第十二研究所 | High-power small volume matched-load structure |
| CN101694903A (en) * | 2009-10-22 | 2010-04-14 | 西安空间无线电技术研究所 | Dual-arm coupling quadrature mode coupler with high cross polarization discrimination |
| CN102769161A (en) * | 2012-04-24 | 2012-11-07 | 中电科微波通信(上海)有限公司 | Waveguide load |
| CN112599945A (en) * | 2020-12-29 | 2021-04-02 | 江苏恒达微波技术开发有限公司 | Waveguide short-dimension water load |
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| 刘长春、张陶陶、朱伟峰、许延峰.《小型化SMP射频同轴匹配负载的设计与研究》.《机电元件》.2021,第41卷(第3期),全文. * |
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