CN105140599A - Linear motion waveguide switch - Google Patents
Linear motion waveguide switch Download PDFInfo
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- CN105140599A CN105140599A CN201510514071.8A CN201510514071A CN105140599A CN 105140599 A CN105140599 A CN 105140599A CN 201510514071 A CN201510514071 A CN 201510514071A CN 105140599 A CN105140599 A CN 105140599A
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Abstract
The invention discloses a linear motion waveguide switch, which comprises a microwave slide block and a cavity, wherein upper and lower layers of microwave channels are formed in the microwave slide block; each of the two layers of microwave channels comprises corresponding waveguide openings in four side surfaces of the microwave slide block; the cavity sleeves outside the microwave slide block; the cavity also comprises waveguide windows corresponding to the waveguide openings of the microwave slide block in the four side surfaces; the microwave slide block can carry out linear motion along the axis direction of the microwave slide block in the cavity, and slides in the cavity through the upper layer of microwave channels or the lower layer of microwave channels of the microwave slide block, so that switching of a microwave signal between different transmission channels is achieved; when the microwave slide block is located at the lower position, the waveguide openings of the upper layer of microwave channels are aligned at the waveguide windows in the cavity; and when the microwave slide block is located at the upper position, the waveguide openings of the lower layer of microwave channels are aligned at the waveguide windows in the cavity. Switching of the microwave signal between different transmission channels can be achieved through sliding the microwave slide block between the upper position and the lower position; the switching speed is high; and the linear motion waveguide switch can also be applied to a high-frequency band.
Description
Technical field
The present invention relates to field of electromechanical technology, particularly relate to a kind of linear motion type waveguide switch.
Background technology
Dynamo-electric waveguide switch has the advantage that voltage standing wave(VSW) is low, insertion loss is little, isolation is high, power capacity is large simultaneously, makes it be widely used in fields such as radar, electronic countermeasures, measuring instrument, satellite communications.
Traditional waveguide switch mostly is rotary waveguide switch, relies on microwave rotor to rotate in microwave stator and realizes the switching of signal between different microwave channel.The deficiencies such as the design feature of himself makes rotary waveguide switch when being applied to millimeter wave frequency band, and switching time is longer, part processing difficulties, isolation are poor can highlight more, and these deficiencies also limit waveguide switch and are applied to higher frequency.For ensureing that microwave rotor can rotate flexibly, between the rotor and stator of waveguide switch, there is the gap of, this gap forms microwave leakage passage.From raising waveguide switch microwave property (as improved isolation, reduce standing wave and insertion loss) aspect, gap between rotor and stator is the smaller the better, but be subject to the restriction of part axiality, circularity and bearing clearance, accurately cannot control gap, cause conventional waveguide switch poor at the isolation of millimeter wave frequency band, limit waveguide switch to more high band development.
Visible, traditional rotary waveguide switch, due to the restriction of self structure, cannot be applied to high frequency band.
Summary of the invention
For problems of the prior art, object of the present invention, for providing a kind of linear motion type waveguide switch, cannot be applied to the technical problem of high frequency band to solve rotary waveguide switch traditional in prior art due to the restriction of self structure.
For achieving the above object, the invention provides a kind of linear motion type waveguide switch, comprising:
Microwave slide block, and described microwave slide block inside has upper and lower two-layer microwave channel, described two-layer microwave channel has corresponding waveguide mouth respectively in four sides of described microwave slide block; And
Cavity, is set in the outside of described microwave slide block, and described cavity also has the waveguide window corresponding with the waveguide mouth of described microwave slide block on four sides;
Described microwave slide block can do rectilinear motion along the axis direction of described microwave slide block in described cavity, and being slided in described cavity by the upper strata microwave channel of described microwave slide block or lower floor's microwave channel is realized microwave signal and switch between different transmission channels.
Further, described microwave slide block is cuboid, and the axial cross section of described microwave slide block is in square.
Further, described upper strata microwave channel has first wave guide mouth, the second waveguide mouth, the 3rd waveguide mouth and the 4th waveguide mouth along clockwise direction respectively on four sides of described microwave slide block, and described first wave guide mouth communicates in the inside of described microwave slide block with described second waveguide mouth, described 3rd waveguide mouth communicates in the inside of described microwave slide block with described 4th waveguide mouth.
Further, described lower floor microwave channel has the 5th waveguide mouth, the 6th waveguide mouth, the 7th waveguide mouth and the 8th waveguide mouth along clockwise direction respectively on four sides of described microwave slide block, and described 5th waveguide mouth and described first wave guide mouth are positioned at the same side of described microwave slide block, described 5th waveguide mouth communicates in the inside of described microwave slide block with described 8th waveguide mouth, and described 6th waveguide mouth communicates in the inside of described microwave slide block with described 7th waveguide mouth.
Further, the microwave channel between described first wave guide mouth and described second waveguide mouth, microwave channel, the microwave channel between described 5th waveguide mouth and described 8th waveguide mouth and the microwave channel between described 6th waveguide mouth and described 7th waveguide mouth between described 3rd waveguide mouth and described 3rd waveguide mouth are 90 degree.
Further, also comprise:
Limit assembly, for carrying out spacing to described microwave slide block, described limit assembly comprises four bearing group, is separately positioned in the bearing group mounting groove that four angles of described cavity are offered.
Further, described microwave slide block also has bearing contact surfaces between adjacent two sides, and four bearing contact surfaces of described microwave slide block contact with the bearing in described bearing group respectively.
Further, described bearing group comprises the support of bearing and two bearings, and the described support of bearing is frame structure, and described two bearings are arranged on the described support of bearing respectively by rotating shaft middle separately.
Further, described waveguide switch also has microwave from leakage passage, is positioned at the junction of described microwave slide block and described cavity, is made up of two orthogonal slab guides.
Further, described waveguide switch also has choke groove, is arranged on described microwave slide block, is positioned at the contact-making surface position of the inwall of described microwave slide block and described cavity.
Beneficial effect of the present invention is, has the microwave slide block of upper and lower double-layer structure by arranging in cavity, and when microwave slide block is positioned at bottom, the waveguide window on the waveguide mouth of upper strata microwave channel and cavity is aimed at; When microwave slide block is positioned at upper, the waveguide window on the waveguide mouth of lower floor's microwave channel and cavity is aimed at, and by the microwave slide block that slides between upper and lower, can realize the switching of microwave signal between different microwave channel.The waveguide switch of linear motion type provided by the invention, compared with conventional waveguide switch, not only has fast, the convenient advantage of producing of switch speed, and can also realize higher isolation and other microwave property at millimeter wave frequency band.
Accompanying drawing explanation
A kind of overall structure schematic diagram of linear motion type waveguide switch of Fig. 1 for providing in the embodiment of the present invention.
Fig. 2 is the external structure schematic diagram of microwave slide block in the embodiment of the present invention.
Fig. 3 is the internal structure schematic diagram of microwave slide block in the embodiment of the present invention.
Fig. 4 is the structural representation of cavity in the embodiment of the present invention.
Fig. 5 is the structural representation of embodiment of the present invention middle (center) bearing group.
Fig. 6 is the conducting state schematic diagram of waveguide switch when microwave slide block is positioned at upper state in the embodiment of the present invention.
Fig. 7 is the conducting state schematic diagram of waveguide switch when microwave slide block is positioned at the next state in the embodiment of the present invention.
Embodiment
The exemplary embodiments embodying feature & benefits of the present invention will describe in detail in the following description.It should be understood that the present invention can have various changes in different embodiments, it neither departs from the scope of the present invention, and explanation wherein and accompanying drawing are the use when explain in itself, and is not used to limit the present invention.
The defect had for traditional rotary waveguide switch and deficiency, embodiments provide a kind of linear motion type waveguide switch, by realizing the switching of microwave signal between different microwave channel at the inner microwave channel that reciprocatingly slides vertically, the overall structure schematic diagram of this waveguide switch as shown in Figure 1, comprising:
Microwave slide block 10, and microwave slide block 10 inside has upper and lower two-layer microwave channel, two-layer microwave channel has corresponding waveguide mouth respectively in four sides of microwave slide block; And
Cavity 20, is set in the outside of microwave slide block 10, and cavity 20 also has the waveguide window corresponding with the waveguide mouth of microwave slide block 10 on four sides;
Microwave slide block 10 can do rectilinear motion along the axis direction of microwave slide block 10 in cavity 20, and being slided in cavity 20 by the upper strata microwave channel of microwave slide block 10 or lower floor's microwave channel is realized microwave signal and switch between different microwave channels.
The external structure schematic diagram of the microwave slide block 10 in the present embodiment as shown in Figure 2, the primary structure of microwave slide block 10 is upper and lower two-layer microwave channels, have upper waveguide mouth 101 and lower waveguide mouth 102 respectively, outside is cuboid, and the axial cross section of microwave slide block 10 is rectangle.In addition, see Fig. 1, above the primary structure of microwave slide block 10, be also provided with column structure, for being connected with the device controlling microwave slide block movement.The internal structure schematic diagram of microwave slide block 10 as shown in Figure 3, comprise upper strata microwave channel 11 and lower floor's microwave channel 12, every one deck microwave channel includes the non-intersect microwave channel also do not communicated of two parts, and two waveguide mouths of microwave channel lay respectively on adjacent two sides of microwave slide block.Being specifically described as follows for microwave channel:
Upper strata microwave channel 11 has first wave guide mouth, the second waveguide mouth, the 3rd waveguide mouth and the 4th waveguide mouth along clockwise direction respectively on four sides of microwave slide block 10, and first wave guide mouth communicates in the inside of microwave slide block 10 with the second waveguide mouth, the 3rd waveguide mouth communicates in the inside of microwave slide block 10 with the 4th waveguide mouth.
Lower floor's microwave channel 12 has the 5th waveguide mouth, the 6th waveguide mouth, the 7th waveguide mouth and the 8th waveguide mouth along clockwise direction respectively on four sides of microwave slide block 10, and the 5th waveguide mouth and first wave guide mouth are positioned at the same side of microwave slide block 10,5th waveguide mouth communicates in the inside of microwave slide block 10 with the 8th waveguide mouth, and the 6th waveguide mouth communicates in the inside of microwave slide block 10 with the 7th waveguide mouth.
For above-mentioned microwave channel, the microwave channel between first wave guide mouth and the second waveguide mouth, microwave channel, the microwave channel between the 5th waveguide mouth and the 8th waveguide mouth and the microwave channel between the 6th waveguide mouth and the 7th waveguide mouth between the 3rd waveguide mouth and the 4th waveguide mouth are 90 degree.But it should be noted that, this angle of microwave channel is not absolute right angle, but curved.Meanwhile, see Fig. 3, two passage branches of upper strata microwave channel are respectively used to the first side of conducting microwave slide block and the 4th side and the second side and the 3rd side; Two passage branches of lower floor's microwave channel are then respectively used to the first side of conducting microwave slide block and the second side and the 3rd side and the 4th side, and namely this two-layer microwave channel is different for the guiding path of microwave signal.
Further, also comprise:
Limit assembly, for carrying out spacing to microwave slide block 10, limit assembly comprises four bearing group, is separately positioned in the bearing group mounting groove 21 that four angles of cavity are offered.
For cavity 20 structural representation as shown in Figure 4, four angles have in criss-cross bearing group mounting groove 21, for placing limit assembly, the centre position, four sides of cavity has waveguide window 22, when upper strata microwave channel or the waveguide mouth of lower floor's microwave channel and the waveguide window of cavity are on time, corresponding microwave channel carries out the transmission of microwave signal.For one of them bearing group, as shown in Figure 5, bearing group comprises the support of bearing 31 and two bearings 32 to its structural representation, and the support of bearing 31 is frame structure, and two bearings 32 are arranged on the support of bearing 31 respectively by rotating shaft middle separately.Bearing group shown in Fig. 5 is arranged in the decussate texture of bearing group mounting groove 21, for settling the support of bearing in " one " word groove wherein, for settling bearing in " 1 " word groove.
Again see Fig. 2, microwave slide block 10 also has bearing contact surfaces 103 between adjacent two sides, four bearing contact surfaces of microwave slide block 10 contact with the bearing in bearing group respectively, can carry out spacing to microwave slide block by these four bearing group arranged around microwave slide block.
Because microwave slide block 10 can make axial rectilinear motion in cavity, when microwave slide block is positioned at upper, the waveguide mouth of lower floor's microwave channel is aimed at the waveguide window of cavity, and namely now lower floor's microwave channel carries out the transmission of microwave signal, and schematic diagram as shown in Figure 6.When microwave slide block is positioned at bottom, the waveguide mouth of upper strata microwave channel is aimed at the waveguide window of cavity, namely now upper strata microwave channel carries out the transmission of microwave signal, and schematic diagram as shown in Figure 7, all illustrates microwave slide block 10, cavity 20 and bearing group mounting groove 21 in Fig. 6 and Fig. 7.In addition, spacing upper limit, lower limit and the radial direction of being divided into of linear motion type (abbreviation Direct Action Type) waveguide switch in the present embodiment is spacing, upper limit realizes by cavity upper cover plate, lower limit realizes by inside cavity bottom surface, radial spacing by bearing group realization, and the fixing device (as Direct Action Type relay) by controlling microwave slide block movement of microwave slide block 10 realizes.
See Fig. 6 and Fig. 7, the waveguide switch in the present embodiment also has microwave from leakage passage 40, is positioned at microwave slide block 10 and the junction of cavity 20, is made up of two orthogonal slab guides.Compared to the cylinder microwave from leakage passage of conventional rotary waveguide switch, orthogonal microwave from leakage passage will have stronger iris action to the microwave signal revealed.
See Fig. 6 and Fig. 7, the waveguide switch in the present embodiment also has choke groove 104, is arranged on microwave slide block 10, and be positioned at the contact-making surface position of the inwall of microwave slide block 10 and cavity 20, the position of choke groove 104 on microwave slide block 10 is shown in Figure 2.Gap due to the microwave channel in the present embodiment is plane, advantageously in the processing of choke groove.
The characteristic of linear motion type waveguide switch compared with traditional rotary waveguide switch of the present embodiment is as follows:
(1) switch speed of Direct Action Type waveguide switch is faster
Traditional waveguide switch is rotary waveguide switch, the size of waveguide mouth reduces with the rising of operating frequency, but when conventional waveguide switch is switched to another state from a state, the angle (being generally 90 °) rotated is changeless, cause the switch speed of this kind of waveguide switch can not be promoted accordingly with the rising of operating frequency, even if work in such waveguide switch of millimere-wave band, its typical switching time is also greater than 50ms.Direct Action Type waveguide switch switches between different microwave channel by realizing microwave signal at the inner microwave channel that reciprocatingly slides vertically, and its switch speed is directly inversely proportional to by switching stroke and its switching stroke determined by the direct narrow edge lengths by rectangular waveguide.So operating frequency is higher, the shorter switch speed of switching stroke of Direct Action Type waveguide switch is faster.Such as, the narrow limit of 3mm waveguide switch is of a size of 1.27mm, and during direct acting, the switching stroke of waveguide switch is only 3mm, and switching time is less than 15ms.
(2) Direct Action Type waveguide switch is convenient produces
For realizing the switching of waveguide switch between different conditions, there is certain gap in the junction of the inside and outside microwave channel of waveguide switch, this gap constitutes the leakage of microwave signal.In order to reduce the leakage of microwave signal, improving the radio-frequency performance of waveguide switch, usually adopting two kinds of modes: one, choke groove is set at the gap of microwave channel, two, by clearance control to minimum.
The inside microwave channel of rotary waveguide switch is positioned at microwave rotor, and rotating microwave rotor can switch waveguide switch state.The junction (i.e. microwave channel gap) of microwave rotor and microwave stator is cylinder, on the face of cylinder design and processing choke groove difficulty high.Because the open gap of microwave channel is less, for ensure microwave rotor can in microwave stator flexible rotating, need the machining accuracy to microwave rotor and microwave stator, as axiality, circularity etc. propose very high requirement, too increase difficulty of processing large.
The inside microwave channel of Direct Action Type waveguide switch is positioned at microwave slide block, and the microwave slide block that slides axially can switch on off state.The gap of its microwave channel is plane, facilitates design and the processing of choke groove.Such waveguide switch relies on and slides axially microwave slide block to realize the switching of microwave signal between different microwave channel.The global shape of microwave slide block is cuboid, adds the depth of parallelism only needing man-hour to ensure each opposite planar, processes simpler.So Direct Action Type waveguide switch is to production more more convenient than rotary waveguide switch.
(3) Direct Action Type waveguide switch more easily realizes high-isolation in millimere-wave band
The factor affecting waveguide switch isolation mainly contains 3 points, the shape of one, choke groove and position, two, the gap length of leakage, three, the shape of leakage.
For rotary waveguide switch, the junction (i.e. microwave channel gap) of its microwave rotor and microwave stator is cylinder, the face of cylinder is designed and is processed choke groove difficulty high, this often cause waveguide switch millimeter wave frequency band isolation index and consistency poor, in addition, be subject to the restriction of part axiality, circularity and bearing clearance, the open gap of microwave channel is comparatively large and cannot accurately control, this can cause equally switch millimeter wave and with the isolation of super band and consistency poor.The present invention is to provide a kind of Novel direct-acting waveguide switch, the gap of its microwave channel is plane, facilitates design and the processing of choke groove, and the upper effect playing choke groove, improves the isolation index of waveguide switch to greatest extent.In addition, the microwave slide block of Direct Action Type waveguide switch is by four bearing group in side righting, and the open gap of microwave channel can not be accomplished very little by the restriction of part axiality and bearing clearance, is conducive to isolation and other microwave property of improving waveguide switch.
The microwave from leakage passage of rotary waveguide switch is one section of 90 ° of cylinder waveguide, and the microwave from leakage passage of Direct Action Type waveguide switch is made up of two orthogonal slab guides.For cylinder waveguide, orthogonal two slab guides will have stronger iris action to the microwave signal revealed, and therefore, Direct Action Type waveguide switch more easily realizes high-isolation.
The beneficial effect of the present embodiment is, has the microwave slide block of upper and lower double-layer structure by arranging in cavity, and when microwave slide block is positioned at bottom, the waveguide window on the waveguide mouth of upper strata microwave channel and cavity is aimed at; When microwave slide block is positioned at upper, the waveguide window on the waveguide mouth of lower floor's microwave channel and cavity is aimed at, and by the microwave slide block that slides between upper and lower, can realize the switching of microwave signal between different microwave channel.The waveguide switch of linear motion type provided by the invention, compared with conventional waveguide switch, not only has fast, the convenient advantage of producing of switch speed, and can also realize higher isolation and other microwave property at millimeter wave frequency band.
The change that those skilled in the art do when should recognize the scope and spirit of the present invention disclosed in the claim do not departed from appended by the present invention and retouching, within the protection range all belonging to claim of the present invention.
Claims (10)
1. a linear motion type waveguide switch, is characterized in that, comprising:
Microwave slide block, and described microwave slide block inside has upper and lower two-layer microwave channel, described two-layer microwave channel has corresponding waveguide mouth respectively in four sides of described microwave slide block; And
Cavity, is set in the outside of described microwave slide block, and described cavity also has the waveguide window corresponding with the waveguide mouth of described microwave slide block on four sides;
Described microwave slide block can do rectilinear motion along the axis direction of described microwave slide block in described cavity, and being slided in described cavity by the upper strata microwave channel of described microwave slide block or lower floor's microwave channel is realized microwave signal and switch between different transmission channels.
2. linear motion type waveguide switch as claimed in claim 1, it is characterized in that, described microwave slide block is cuboid, and the axial cross section of described microwave slide block is rectangular.
3. linear motion type waveguide switch as claimed in claim 1, it is characterized in that, described upper strata microwave channel has first wave guide mouth, the second waveguide mouth, the 3rd waveguide mouth and the 4th waveguide mouth along clockwise direction respectively on four sides of described microwave slide block, and described first wave guide mouth communicates in the inside of described microwave slide block with described second waveguide mouth, described 3rd waveguide mouth communicates in the inside of described microwave slide block with described 4th waveguide mouth.
4. linear motion type waveguide switch as claimed in claim 3, it is characterized in that, described lower floor microwave channel has the 5th waveguide mouth, the 6th waveguide mouth, the 7th waveguide mouth and the 8th waveguide mouth along clockwise direction respectively on four sides of described microwave slide block, and described 5th waveguide mouth and described first wave guide mouth are positioned at the same side of described microwave slide block, described 5th waveguide mouth communicates in the inside of described microwave slide block with described 8th waveguide mouth, and described 6th waveguide mouth communicates in the inside of described microwave slide block with described 7th waveguide mouth.
5. linear motion type waveguide switch as claimed in claim 4, it is characterized in that, the microwave channel between described first wave guide mouth and described second waveguide mouth, microwave channel, the microwave channel between described 5th waveguide mouth and described 8th waveguide mouth and the microwave channel between described 6th waveguide mouth and described 7th waveguide mouth between described 3rd waveguide mouth and described 3rd waveguide mouth are 90 degree.
6. linear motion type waveguide switch as claimed in claim 1, is characterized in that, also comprise:
Limit assembly, for carrying out spacing to described microwave slide block, described limit assembly comprises four bearing group, is separately positioned in the bearing group mounting groove that four angles of described cavity are offered.
7. linear motion type waveguide switch as claimed in claim 6, it is characterized in that, described microwave slide block also has bearing contact surfaces between adjacent two sides, and four bearing contact surfaces of described microwave slide block contact with the bearing in described bearing group respectively.
8. linear motion type waveguide switch as claimed in claim 6, it is characterized in that, described bearing group comprises the support of bearing and two bearings, and the described support of bearing is frame structure, and described two bearings are arranged on the described support of bearing respectively by rotating shaft middle separately.
9. linear motion type waveguide switch as claimed in claim 1, it is characterized in that, described waveguide switch also has microwave from leakage passage, is positioned at the junction of described microwave slide block and described cavity, is made up of two orthogonal slab guides.
10. linear motion type waveguide switch as claimed in claim 1, it is characterized in that, described waveguide switch also has choke groove, is arranged on described microwave slide block, is positioned at the contact-making surface position of the inwall of described microwave slide block and described cavity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510514071.8A CN105140599B (en) | 2015-08-19 | 2015-08-19 | A kind of linear motion type waveguide switch |
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| CN201510514071.8A CN105140599B (en) | 2015-08-19 | 2015-08-19 | A kind of linear motion type waveguide switch |
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| CN105140599B CN105140599B (en) | 2017-12-22 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105514533A (en) * | 2015-12-18 | 2016-04-20 | 中国电子科技集团公司第四十一研究所 | C-type waveguide switch with alignment function |
| CN105932374A (en) * | 2016-05-12 | 2016-09-07 | 中国电子科技集团公司第四十研究所 | Small-size mechanical microwave waveguide switch |
| CN107634289A (en) * | 2017-09-12 | 2018-01-26 | 中国电子科技集团公司第四十研究所 | A kind of non-rotating machinery waveguide switch |
| CN114824694A (en) * | 2022-04-27 | 2022-07-29 | 南京天际寻星通信科技有限公司 | Waveguide channel switching device |
| CN115101903A (en) * | 2022-06-28 | 2022-09-23 | 中国电子科技集团公司第二十九研究所 | Assembled double-ridge waveguide switch rotor and manufacturing method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU210086U1 (en) * | 2021-07-12 | 2022-03-28 | Акционерное общество "Научно-производственное предприятие "Алмаз" (АО "НПП "Алмаз") | CASE (STATOR) OF WAVEGUIDE MICROWAVE SWITCH |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514533A (en) * | 2015-12-18 | 2016-04-20 | 中国电子科技集团公司第四十一研究所 | C-type waveguide switch with alignment function |
| CN105514533B (en) * | 2015-12-18 | 2018-10-09 | 中国电子科技集团公司第四十一研究所 | C-type waveguide switch with alignment function |
| CN105932374A (en) * | 2016-05-12 | 2016-09-07 | 中国电子科技集团公司第四十研究所 | Small-size mechanical microwave waveguide switch |
| CN105932374B (en) * | 2016-05-12 | 2018-11-20 | 中国电子科技集团公司第四十一研究所 | A kind of mechanical microwave guide switch of miniaturization |
| CN107634289A (en) * | 2017-09-12 | 2018-01-26 | 中国电子科技集团公司第四十研究所 | A kind of non-rotating machinery waveguide switch |
| CN114824694A (en) * | 2022-04-27 | 2022-07-29 | 南京天际寻星通信科技有限公司 | Waveguide channel switching device |
| CN115101903A (en) * | 2022-06-28 | 2022-09-23 | 中国电子科技集团公司第二十九研究所 | Assembled double-ridge waveguide switch rotor and manufacturing method thereof |
| CN115101903B (en) * | 2022-06-28 | 2023-10-20 | 中国电子科技集团公司第二十九研究所 | Spliced double-ridge waveguide switch rotor and manufacturing method thereof |
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