CN204391232U - A kind of high-power wideband waveguide cable assembly - Google Patents
A kind of high-power wideband waveguide cable assembly Download PDFInfo
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- CN204391232U CN204391232U CN201520012336.XU CN201520012336U CN204391232U CN 204391232 U CN204391232 U CN 204391232U CN 201520012336 U CN201520012336 U CN 201520012336U CN 204391232 U CN204391232 U CN 204391232U
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- frequency coaxial
- waveguide connector
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Abstract
The utility model discloses a kind of high-power wideband waveguide cable assembly, comprise radio frequency coaxial-cable and waveguide connector, described radio frequency coaxial-cable comprises cable inner conductor, described cable inner conductor is coated with cable insulation, wherein, the cable inner conductor at described radio frequency coaxial-cable two ends is directly connected with the multistage ridge ladder of described waveguide connector, and the cable insulation at described radio frequency coaxial-cable two ends is positioned at the coax segments of described waveguide connector.The high-power wideband waveguide cable assembly that the utility model provides, directly be connected with the multistage ridge ladder of described waveguide connector by the cable inner conductor at radio frequency coaxial-cable two ends, and utilize the insulating barrier of radio frequency coaxial-cable by completely isolated for the shell of the inner wire of radio frequency coaxial-cable and waveguide connector coax segments, thus high power, little standing wave, low-loss can be realized under broadband condition simultaneously, and simple and compact for structure, easy to assembly, good reliability.
Description
Technical field
The utility model relates to a kind of waveguide cable assembly, particularly relates to a kind of high-power wideband waveguide cable assembly.
Background technology
Waveguide and radio frequency coaxial-cable are widely used in microwave, millimeter-wave systems, these two kinds of transmission lines must be coupled together use in some occasion, and common way adopts waveguide coaxial converter to realize.But introducing waveguide coaxial converter, can increase the quantity of transmission system center tap, cause the increase corresponding to insertion loss of the voltage standing wave ratio of system, reliability decrease; And the volume of joint interconnecting parts is comparatively large, the space that the system of in turn increasing takies.
Waveguide cable assembly is that a kind of wave-guide cavity wave and radio frequency coaxial-cable directly being done integratedly mates the passive device connected, and eliminates middle conversion links, while reduction insertion loss and voltage standing wave ratio, improves its reliability.Assembly also have lightweight, volume is little, installation site is flexible, it is little to take up room, can the particular advantages such as torsional bending, progressively promote the use of in recent years in radar system, communication system and test macro.Assembly is for connecting Antenna+Transmitter or other equipment, and signal transmission and power under the state that antenna rotates are the requisite parts of system.
At present, more common waveguide cable assembly has two kinds: one to be adopt probe-type transformational structure, and be provided with probe 13 in the coax segments 12 of waveguide connector, probe 13 stretches in waveguide segment 14, and one end of waveguide segment 14 is short-circuit end 15, as shown in Figure 1; Another kind adopts tuning cavate transformational structure, and be provided with probe 13 in the coax segments 12 of waveguide connector, probe 13 runs through waveguide segment 14 and puts in coaxial tunning chamber 16, and one end of waveguide segment 14 is short-circuit end 15, as shown in Figure 2.Medium between the coax segments internal and external conductor of these two kinds of structures is all air, and when transmitting high-power signal, air is easily breakdown and cause sparking, and resistance to power level is not high.In addition, although the former has the wide advantage of service band, the distance stretching into probe in waveguide and waveguide inwall is very little, because electric field is the strongest, also easily spark phenomenon occurs when transmitting high-power signal herein.And the latter is arrowband structure, utilized bandwidth is about 500MHz only.
Along with the fast development of microwave, millimeter-wave technology, system is had higher requirement to the performance index of its front end passive device are also corresponding.Such as in radar system, New Type Radar detection range is far away, certainty of measurement is high, frequency hopping is anti-interference, this just requires that waveguide cable assembly is under guarantee little standing wave, low-loss prerequisite, working band must be widened, improve power capacity, to meet the new demand of radar system high noise immunity, high-acruracy survey, long-range detection.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of high-power wideband waveguide cable assembly, can realize high power, little standing wave, low-loss under broadband condition simultaneously, and simple and compact for structure, easy to assembly, good reliability.
The utility model is solve the problems of the technologies described above the technical scheme adopted to be to provide a kind of high-power wideband waveguide cable assembly, comprise radio frequency coaxial-cable and waveguide connector, described radio frequency coaxial-cable comprises cable inner conductor, described cable inner conductor is coated with cable insulation, wherein, the cable inner conductor at described radio frequency coaxial-cable two ends is directly connected with the multistage ridge ladder of described waveguide connector, and the cable insulation at described radio frequency coaxial-cable two ends is positioned at the coax segments of described waveguide connector.
Above-mentioned high-power wideband waveguide cable assembly, wherein, described waveguide connector is side feedback waveguide connector, is formed with side feedback short-circuit block, side feedback ridge ladder and side feedback wave-guide cavity wave in described side feedback waveguide connector, and described cable inner conductor is connected with side feedback ridge ladder.
Above-mentioned high-power wideband waveguide cable assembly, wherein, the material of described side feedback short-circuit block, side feedback ridge ladder and side feedback wave-guide cavity wave is brass, and described brass surfaces has Gold plated Layer.
Above-mentioned high-power wideband waveguide cable assembly, wherein, described waveguide connector is end feedback waveguide connector, is formed with end feedback short-circuit block, end feedback ridge ladder and end feedback wave-guide cavity wave in described end feedback waveguide connector, and described cable inner conductor is connected with end feedback ridge ladder.
Above-mentioned high-power wideband waveguide cable assembly, wherein, the material of described end feedback short-circuit block, end feedback ridge ladder and end feedback wave-guide cavity wave is brass, and described brass surfaces has Gold plated Layer.
The utility model contrast prior art has following beneficial effect: 1) the utility model eliminates coaxial probe additional in traditional design, directly utilizes cable inner conductor in rectangular waveguide, to carry out excitation coupling as coaxial probe, realizes rectangular waveguide TE
10patten transformation between ripple and radio frequency coaxial-cable TEM ripple.2) the utility model is by the multistage ridge ladder of waveguide connector rectangular waveguide section broadside center position, realize the suitable change of rectangular waveguide cross section, namely realize the impedance transformation of rectangular waveguide in broadband and ensure the impedance matching of rectangular waveguide and radio frequency coaxial-cable.3) the utility model directly utilizes the insulation of radio frequency coaxial-cable by completely isolated for the shell of the inner wire of radio frequency coaxial-cable and waveguide connector coax segments, without the need to additional dielectric, can to efficiently avoid in traditional design waveguide connector coax segments when transmitting high-power signal because of internal and external conductor between air dielectric breakdown and occur spark phenomenon, thus improve the resistance to power capability of assembly.4) cable inner conductor as coaxial probe is directly connected with the ridge ladder that waveguide connector rectangular waveguide section broadside hits exactly by the utility model, is convenient to the heat radiation of assembly, achieves powerful Energy Transfer.5) the utility model achieves the feature such as broadband, high power, little standing wave, low-loss of waveguide cable assembly simultaneously, has greatly expanded the use occasion of assembly, the occasion that particularly suitable bandwidth, power are high.6) the utility model is simple and compact for structure, good reliability, coax segments compact, the occasion of particularly suitable narrow space; Number of spare parts is few, and easy to assembly, production capacity and conforming product rate are significantly improved.
Accompanying drawing explanation
Fig. 1 is existing waveguide cable assembly probe-type transformational structure schematic diagram;
Fig. 2 is existing waveguide cable assembly tuning cavate transformational structure schematic diagram;
Fig. 3 is the utility model high-power wideband waveguide cable modular construction schematic diagram;
Fig. 4 is the cutaway view of the utility model waveguide cable assembly along waveguide segment broadside center line;
Fig. 5 is the cutaway view of feedback waveguide connector in the utility model side along waveguide segment broadside center line;
Fig. 6 is the utility model side feedback waveguide connector upward view;
Fig. 7 is the cutaway view of the utility model end feedback waveguide connector along waveguide segment broadside center line;
Fig. 8 is the utility model end feedback waveguide connector upward view.
In figure:
1 radio frequency coaxial-cable 2 side feedback waveguide connector 3 end feedback waveguide connector
4 cable insulation 5 cable inner conductor 6 side feedback short-circuit blocks
7 side feedback ridge ladder 8 side feedback wave-guide cavity wave 9 end feedback short-circuit blocks
10 end feedback ridge ladder 11 end feedback wave-guide cavity wave 12 coax segments
13 probe 14 waveguide segment 15 waveguide segment short-circuit ends
16 coaxial tunning chambeies
Embodiment
Below in conjunction with drawings and Examples, the utility model will be further described.
Fig. 3 is the utility model high-power wideband waveguide cable modular construction schematic diagram; Fig. 4 is the cutaway view of the utility model waveguide cable assembly along waveguide segment broadside center line.
Refer to Fig. 3 and Fig. 4, the high-power wideband waveguide cable assembly that the utility model provides comprises radio frequency coaxial-cable 1 and waveguide connector, described radio frequency coaxial-cable 1 comprises cable inner conductor 5, described cable inner conductor 5 is coated with cable insulation 4, wherein, the cable inner conductor 5 at described radio frequency coaxial-cable 1 two ends is directly connected with the multistage ridge ladder of described waveguide connector, and the cable insulation 4 at described radio frequency coaxial-cable 1 two ends is positioned at the coax segments of described waveguide connector.
The high-power wideband waveguide cable assembly that the utility model provides, comprise two waveguide connectors and connect one section of radio frequency coaxial-cable 1 of these two waveguide connectors, assembly one end is side feedback waveguide connector, the other end is end feedback waveguide connector, can certainly present waveguide connector in Dou Shi side, two ends, or two ends are all end feedback waveguide connectors.
Waveguide connector of the present utility model be directly make use of radio frequency coaxial-cable cable inner conductor 5 as coaxial probe and in conjunction with the structure of the multistage ridge ladder of rectangular waveguide.Its principle is as follows: 1, be coupled by the excitation as the cable inner conductor 5 of coaxial probe, realize rectangular waveguide TE
10patten transformation between ripple and radio frequency coaxial-cable TEM ripple; 2, by the multistage ridge ladder of waveguide connector rectangular waveguide section broadside center position, realize the suitable change of rectangular waveguide cross section, namely realize the impedance transformation of rectangular waveguide in broadband and ensure the impedance matching of rectangular waveguide and radio frequency coaxial-cable; 3, directly utilize the cable insulation 4 of radio frequency coaxial-cable by completely isolated for the shell of the inner wire of radio frequency coaxial-cable and waveguide connector coax segments, effectively prevent waveguide connector coax segments when transmitting high-power signal and occur spark phenomenon, improve the resistance to power capability of assembly; 4, the cable inner conductor as coaxial probe is directly connected with the ridge ladder that waveguide connector rectangular waveguide section broadside hits exactly, is convenient to the heat radiation of assembly, achieves powerful Energy Transfer.The flange of waveguide connector rectangular waveguide section be standard flange (GB 11449.2) or with the nonstandard of flanges consistent size connecting rectangular waveguide.The length of radio frequency coaxial-cable can unrestricted choice.
Fig. 5 is the cutaway view of feedback waveguide connector in the utility model side along waveguide segment broadside center line.
Please continue see Fig. 5, the high-power wideband waveguide cable assembly that the utility model provides, wherein, described waveguide connector is side feedback waveguide connector 2, be formed with side feedback short-circuit block 6, side feedback ridge ladder 7 and side feedback wave-guide cavity wave 8 in described side feedback waveguide connector 2, described cable inner conductor 5 is connected with side feedback ridge ladder 7.The bore of described side feedback wave-guide cavity wave 8 can be standard rectangular waveguide bore, also can criteria of right and wrong rectangular waveguide bore, as shown in Figure 6.The material of described side feedback short-circuit block 6, side feedback ridge ladder 7 and side feedback wave-guide cavity wave 8 is brass, and described brass surfaces has Gold plated Layer.
Fig. 7 is the cutaway view of the utility model end feedback waveguide connector along waveguide segment broadside center line.
Please continue see Fig. 7, the high-power wideband waveguide cable assembly that the utility model provides, wherein, described waveguide connector is end feedback waveguide connector 3, be formed with end feedback short-circuit block 9, end feedback ridge ladder 10 and end feedback wave-guide cavity wave 11 in described end feedback waveguide connector 3, described cable inner conductor 5 is connected with end feedback ridge ladder 10.Similarly, the bore of described end feedback wave-guide cavity wave 11 can be standard rectangular waveguide bore, also can criteria of right and wrong rectangular waveguide bore, as shown in Figure 8.The material of described end feedback short-circuit block 9, end feedback ridge ladder 10 and end feedback wave-guide cavity wave 11 is brass, and described brass surfaces has Gold plated Layer.
The high-power wideband waveguide cable assembly that the utility model provides, directly be connected with the multistage ridge ladder of described waveguide connector by the cable inner conductor at radio frequency coaxial-cable two ends, and utilize the insulating barrier of radio frequency coaxial-cable by completely isolated for the shell of the inner wire of radio frequency coaxial-cable and waveguide connector coax segments, thus high power, little standing wave, low-loss can be realized under broadband condition simultaneously, and simple and compact for structure, easy to assembly, good reliability.
An embodiment is below provided to be illustrated.
Embodiment: Ka wave band high-power wideband waveguide cable assembly.
(1) structure: see accompanying drawing 3 and accompanying drawing 4.The waveguide cable assembly of embodiment comprises side feedback waveguide connector, end feedback waveguide connector and one section of millimeter wave low-loss flexible cable.
(2) material: the waveguide connector parts such as wave-guide cavity wave, ridge ladder, short-circuit block adopt brass, surface gold-plating process.
(3) size: see accompanying drawing 4, accompanying drawing 6 and accompanying drawing 8.Design size is BJ320 standard gauge, A1=7.11mm, B1=3.56mm, A2=7.11mm, B2=3.56mm, length L=450mm.
(4) the implementation case transmission band is 33G ~ 37GHz, and voltage standing wave ratio is less than 1.25, and insertion loss is less than 1.6dB, can bear average power 200W.
Although the utility model discloses as above with preferred embodiment; so itself and be not used to limit the utility model; any those skilled in the art; not departing from spirit and scope of the present utility model; when doing a little amendment and perfect, therefore protection range of the present utility model is when being as the criterion of defining with claims.
Claims (5)
1. a high-power wideband waveguide cable assembly, comprise radio frequency coaxial-cable (1) and waveguide connector, described radio frequency coaxial-cable (1) comprises cable inner conductor (5), described cable inner conductor (5) is coated with cable insulation (4), it is characterized in that, the cable inner conductor (5) at described radio frequency coaxial-cable (1) two ends is directly connected with the multistage ridge ladder of described waveguide connector, and the cable insulation (4) at described radio frequency coaxial-cable (1) two ends is positioned at the coax segments of described waveguide connector.
2. high-power wideband waveguide cable assembly as claimed in claim 1, it is characterized in that, described waveguide connector is side feedback waveguide connector (2), be formed with side feedback short-circuit block (6), side feedback ridge ladder (7) and side feedback wave-guide cavity wave (8) in described side feedback waveguide connector (2), described cable inner conductor (5) is connected with side feedback ridge ladder (7).
3. high-power wideband waveguide cable assembly as claimed in claim 2, it is characterized in that, the material that wave-guide cavity wave (8) is presented in described side feedback short-circuit block (6), side feedback ridge ladder (7) and side is brass, and described brass surfaces has Gold plated Layer.
4. high-power wideband waveguide cable assembly as claimed in claim 1, it is characterized in that, described waveguide connector is end feedback waveguide connector (3), be formed with end feedback short-circuit block (9), end feedback ridge ladder (10) and end feedback wave-guide cavity wave (11) in described end feedback waveguide connector (3), described cable inner conductor (5) is connected with end feedback ridge ladder (10).
5. high-power wideband waveguide cable assembly as claimed in claim 4, it is characterized in that, the material that described end feedback short-circuit block (9), end feedback ridge ladder (10) and end present wave-guide cavity wave (11) is brass, and described brass surfaces has Gold plated Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520012336.XU CN204391232U (en) | 2015-01-08 | 2015-01-08 | A kind of high-power wideband waveguide cable assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520012336.XU CN204391232U (en) | 2015-01-08 | 2015-01-08 | A kind of high-power wideband waveguide cable assembly |
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| CN204391232U true CN204391232U (en) | 2015-06-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877097A (en) * | 2017-02-27 | 2017-06-20 | 上海航天科工电器研究院有限公司 | A kind of waveguide of duplex turns co-axial cable component |
| CN106887762A (en) * | 2017-03-31 | 2017-06-23 | 贵州航天电子科技有限公司 | A kind of radio frequency co-axial cable subassembly |
| CN112736476A (en) * | 2020-11-19 | 2021-04-30 | 东华大学 | High-gain leaky-wave cable for indoor distribution |
-
2015
- 2015-01-08 CN CN201520012336.XU patent/CN204391232U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877097A (en) * | 2017-02-27 | 2017-06-20 | 上海航天科工电器研究院有限公司 | A kind of waveguide of duplex turns co-axial cable component |
| CN106887762A (en) * | 2017-03-31 | 2017-06-23 | 贵州航天电子科技有限公司 | A kind of radio frequency co-axial cable subassembly |
| CN106887762B (en) * | 2017-03-31 | 2018-11-02 | 贵州航天电子科技有限公司 | A kind of radio frequency co-axial cable subassembly |
| CN112736476A (en) * | 2020-11-19 | 2021-04-30 | 东华大学 | High-gain leaky-wave cable for indoor distribution |
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| GR01 | Patent grant |