CN204632896U - The high-frequency of the little decay of a kind of low standing wave can turn round rectangular flecible waveguide - Google Patents
The high-frequency of the little decay of a kind of low standing wave can turn round rectangular flecible waveguide Download PDFInfo
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- CN204632896U CN204632896U CN201520170548.0U CN201520170548U CN204632896U CN 204632896 U CN204632896 U CN 204632896U CN 201520170548 U CN201520170548 U CN 201520170548U CN 204632896 U CN204632896 U CN 204632896U
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Abstract
The high-frequency that the utility model discloses the little decay of a kind of low standing wave can turn round rectangular flecible waveguide, comprise the flexible waveguide pipe for holding shaping plug, described flexible waveguide pipe is coated with sheath, the two ends of described flexible waveguide pipe are provided with ring flange, the open slot that the centre of described ring flange is provided with, the rectangle of the cross section of described flexible waveguide pipe to be narrow limit be circular arc, the shape of described open slot and the cross section of described flexible waveguide pipe match.The utility model is by being set as the cross section of flexible waveguide pipe the rectangle that narrow limit is circular arc, the shape of described open slot and the cross section of flexible waveguide pipe match, flexible waveguide pipe, impedance matching good between ring flange bore and the device be connected with flexible waveguide can be realized, reach the high frequency output of low standing wave, little decay; Can avoid shaping plug under the effect of form wheel pressure, occur the situation of being out of shape simultaneously, reduce cost, improve production efficiency.
Description
Technical field
The utility model relates to a kind of flexible waveguide, and the high-frequency particularly relating to the little decay of a kind of low standing wave can turn round rectangular flecible waveguide.
Background technology
Flexible waveguide is one of critical elements in microwave electronics, as between hard waveguide or hard electric connecting part between waveguide and other microwave components.Rectangular flecible waveguide can be turned round and comprise ring flange, flexible waveguide pipe and rubber sheath, as shown in Figure 1.The device be connected with flexible waveguide is all the hard waveguide bore of standard, and as shown in Figure 2, the size of a and b can with reference to GB 11449.1-1989 " waveguide flange part 2: normal rectangular waveguide ring flange specification ".When transmitting microwave signal, in order to reduce reflection as far as possible, needing at flexible waveguide pipe, between ring flange bore and standard hard waveguide bore three, carrying out designing impedance matching.When frequency is lower than 20GHz, the ring flange of flexible waveguide adopts standard gauge as shown in Figure 2, and flexible waveguide pipe adopts structure as shown in Figure 3 a and Figure 3 b shows can reach good impedance matching with standard hard waveguide bore.But when frequency is higher than 20GHz, the structure shown in Fig. 2, Fig. 3 a and Fig. 3 b can not reach good impedance matching with the hard waveguide of standard and cause return loss to increase.In addition, flexible waveguide pipe is when being molded into structure as shown in Figure 3 a and Figure 3 b shows, because the structure of forming core rod needs consistent with bore in flexible waveguide pipe with size, forming core rod need be designed to structure as shown in Figure 4, this kind of forming core rod in use for some time fillet R can become bore off-design in ambassador's flexible waveguide pipe and cause impedance mismatching under the pressure of briquetting roller, this phenomenon is more serious in high-frequency flexible waveguide forming core rod, therefore need frequently to change forming core rod, and then causing cost to increase, production efficiency reduces.
Utility model content
The high-frequency that technical problem to be solved in the utility model is to provide the little decay of a kind of low standing wave can turn round rectangular flecible waveguide, flexible waveguide pipe, impedance matching good between ring flange bore and the device be connected with flexible waveguide can be realized, ensure the high frequency output of low standing wave, little decay, and frequently need not change forming core rod, thus reduce cost, improve production efficiency.
The utility model is solve the problems of the technologies described above the high-frequency that the technical scheme adopted is to provide the little decay of a kind of low standing wave can turn round rectangular flecible waveguide, comprise the flexible waveguide pipe for holding forming core rod, described flexible waveguide pipe is coated with sheath, the two ends of described flexible waveguide pipe are provided with ring flange, the open slot that the centre of described ring flange is provided with, wherein, the rectangle of the cross section of described flexible waveguide pipe to be narrow limit be circular arc, the shape of described open slot and the cross section of described flexible waveguide pipe match.
The high-frequency of the above-mentioned little decay of low standing wave can turn round rectangular flecible waveguide, and wherein, the described transmission band turning round rectangular flecible waveguide is 17.7GHz ~ 40.0GHz, and the arc radius size of the cross section of described flexible waveguide pipe and transmission band height are in inverse relation.
The high-frequency of the above-mentioned little decay of low standing wave can turn round rectangular flecible waveguide, and wherein, the material of described ring flange is copper, and described flexible waveguide pipe is formed by copper strips or silver-plated copper strips, and described flexible waveguide pipe and ring flange are weldingly connected.
The high-frequency of the above-mentioned little decay of low standing wave can turn round rectangular flecible waveguide, and wherein, described sheath is silicone rubber jacket, and described silicone rubber jacket is coated on outside flexible waveguide pipe by mould pressing process.
The utility model contrast prior art has following beneficial effect: the high-frequency of the little decay of low standing wave that the utility model provides can turn round rectangular flecible waveguide, by the cross section of flexible waveguide pipe is set as the rectangle that narrow limit is circular arc, the shape of described open slot and the cross section of described flexible waveguide pipe match, flexible waveguide pipe, impedance matching good between ring flange bore and the device be connected with flexible waveguide can be realized, reach the high frequency output of low standing wave, little decay; Can avoid forming core rod under the effect of briquetting roller pressure, occur the situation of being out of shape simultaneously, greatly extend the useful life of forming core rod, frequently need not change forming core rod, thus reduce cost, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is for can turn round rectangular flecible waveguide structural representation;
Fig. 2 is the flange plate structure schematic diagram of the existing flexible waveguide matched with the hard waveguide bore of standard;
Fig. 3 a is the flexible waveguide pipe Facad structure schematic diagram of existing frequency lower than 20GHz;
Fig. 3 b is the flexible waveguide pipe side structure schematic diagram of existing frequency lower than 20GHz;
Fig. 4 is the flexible waveguide pipe forming core rod structural representation of existing frequency lower than 20GHz;
Fig. 5 is the flange plate structure schematic diagram that high-frequency of the present utility model can turn round rectangular flecible waveguide;
Fig. 6 a is the flexible waveguide pipe Facad structure schematic diagram that high-frequency of the present utility model can turn round rectangular flecible waveguide;
Fig. 6 b is the flexible waveguide pipe side structure schematic diagram that high-frequency of the present utility model can turn round rectangular flecible waveguide;
Fig. 7 is that high-frequency of the present utility model can moment of torsion shape flexible waveguide pipe forming core rod structural representation; Fig. 8 is that the high-frequency of the little decay of a kind of low standing wave of the present utility model can turn round rectangular flecible waveguide simulation curve figure;
Fig. 9 is that the high-frequency of the little decay of the low standing wave of another kind of the present utility model can turn round rectangular flecible waveguide simulation curve figure.
In figure:
1 ring flange 2 flexible waveguide pipe 3 sheath
4 open slot 5 forming core rods
Embodiment
Below in conjunction with drawings and Examples, the utility model will be further described.
Fig. 1 is for can turn round rectangular flecible waveguide structural representation; Fig. 5 is the flange plate structure schematic diagram that high-frequency of the present utility model can turn round rectangular flecible waveguide; Fig. 6 a is the flexible waveguide pipe Facad structure schematic diagram that high-frequency of the present utility model can turn round rectangular flecible waveguide; Fig. 6 b is the flexible waveguide pipe side structure schematic diagram that high-frequency of the present utility model can turn round rectangular flecible waveguide.
Refer to Fig. 1, Fig. 5, Fig. 6 a and Fig. 6 b, the high-frequency of the little decay of low standing wave that the utility model provides can be turned round rectangular flecible waveguide and comprise flexible waveguide pipe 2 for holding forming core rod, described flexible waveguide pipe 2 is coated with sheath 3, the two ends of described flexible waveguide pipe 2 are provided with ring flange 1, the centre of described ring flange 1 is provided with the open slot 4 that waveguide bore hard with standard mates, wherein, the rectangle of the cross section of described flexible waveguide pipe 2 to be narrow limits be circular arc, the shape of described open slot 4 and the cross section of described flexible waveguide pipe 2 match.Correspondingly, the fillet of forming core rod 5 is comparatively large, as shown in Figure 7, there will not be the situation of being out of shape under the effect of briquetting roller pressure, need not frequently change forming core rod 5, thus reduce cost, improve production efficiency.
The high-frequency of the little decay of low standing wave that the utility model provides can turn round rectangular flecible waveguide, by the suitable change of ring flange 1 bore and flexible waveguide pipe 2 internal diameter cross section, realize flexible waveguide pipe 2, ring flange 1 bore and and standard hard waveguide bore three between good impedance matching, to reduce return loss; The cross section of described flexible waveguide pipe 2 is roughly rectangle, and two narrow limits of described rectangle are circular arc; The described transmission band turning round rectangular flecible waveguide is 17.7GHz ~ 40.0GHz, and the arc radius size of the cross section of described flexible waveguide pipe 2 and transmission band height are in inverse relation.
The high-frequency of the little decay of low standing wave that the utility model provides can turn round rectangular flecible waveguide, and the material of described ring flange 1 is copper, and described flexible waveguide pipe 2 is formed by copper strips or silver-plated copper strips, can reduce decay further; Described flexible waveguide pipe 2 and ring flange 1 are weldingly connected.Described sheath 3 is silicone rubber jacket, and described silicone rubber jacket is coated on outside flexible waveguide pipe 2 by mould pressing process, flexible waveguide can be adapted to severe external environment condition and increase mechanical strength.
Embodiment 1:BRA 220 type can turn round rectangular flecible waveguide
1) structure: BRA 220 type can be turned round rectangular flecible waveguide and comprise ring flange 1, flexible waveguide pipe 2 and sheath 3, and overall schematic is shown in accompanying drawing 1; Ring flange 1 structure is see accompanying drawing 5, and flexible waveguide pipe 2 structure is see Fig. 6 a and Fig. 6 b.
2) material: ring flange 1 adopts environmental protection copper, flexible waveguide pipe 2 adopts copper strips, and sheath 3 adopts silicon rubber.
3) assemble: ring flange 1 is connected with flexible waveguide pipe 2 by welding, then by mould pressing process at flexible waveguide pipe 2 outer cladding one deck rubber sheath.
4) size: see accompanying drawing 5, Fig. 6 a and Fig. 6 b.Design size is, a=11.08mm, r=1.8mm, A=11.12mm, R=2.1mm.
5) the implementation case transmission band is 17.7 ~ 26.5GHz, and length is 600mm, and voltage standing wave ratio is less than 1.15, and decay is less than 0.7dB, and simulation curve as shown in Figure 8.
Embodiment 2:BRA 320 type can turn round rectangular flecible waveguide
1) structure: BRA 320 type can be turned round rectangular flecible waveguide and comprise ring flange 1, flexible waveguide pipe 2 and sheath 3, and overall schematic is shown in accompanying drawing 1; Ring flange 1 structure is see accompanying drawing 5, and flexible waveguide pipe 2 structure is see Fig. 6 a and Fig. 6 b.
2) material: ring flange 1 adopts environmental protection copper, flexible waveguide pipe 2 adopts silver-plated copper strips, and sheath 3 adopts silicon rubber.
3) assemble: ring flange 1 is connected with flexible waveguide pipe 2 by welding, then by mould pressing process 2 coated one deck rubber sheaths outside flexible waveguide pipe.
4) size: see accompanying drawing 5, Fig. 6 a and Fig. 6 b.Design size is, a=7.62mm, r=3.31mm, A=7.02mm, R=1.57mm.
5) the implementation case transmission band is 26.5 ~ 40.0GHz, and length is 600mm, and voltage standing wave ratio is less than 1.20, and decay is less than 1.20dB, and simulation curve as shown in Figure 9.
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 (4)
1. the high-frequency of the little decay of low standing wave can turn round rectangular flecible waveguide, comprise the flexible waveguide pipe for holding shaping plug, described flexible waveguide pipe is coated with sheath, the two ends of described flexible waveguide pipe are provided with ring flange, the centre of described ring flange is provided with open slot, it is characterized in that: the rectangle of the cross section of described flexible waveguide pipe to be narrow limit be circular arc, the shape of described open slot and the cross section of described flexible waveguide pipe match.
2. the high-frequency of the little decay of low standing wave as claimed in claim 1 can turn round rectangular flecible waveguide, it is characterized in that: the described transmission band turning round rectangular flecible waveguide is 17.7GHz ~ 40.0GHz, the arc radius size of the cross section of described flexible waveguide pipe and transmission band height are in inverse relation.
3. the high-frequency of the little decay of low standing wave as claimed in claim 1 or 2 can turn round rectangular flecible waveguide, it is characterized in that: the material of described ring flange is copper, and described flexible waveguide pipe is formed by copper strips or silver-plated copper strips, and described flexible waveguide pipe and ring flange are weldingly connected.
4. the high-frequency of the little decay of low standing wave as claimed in claim 3 can turn round rectangular flecible waveguide, it is characterized in that: described sheath is silicone rubber jacket, and described silicone rubber jacket is coated on outside flexible waveguide pipe by mould pressing process.
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| CN201520170548.0U CN204632896U (en) | 2015-03-25 | 2015-03-25 | The high-frequency of the little decay of a kind of low standing wave can turn round rectangular flecible waveguide |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119033A (en) * | 2015-09-10 | 2015-12-02 | 四川九洲电器集团有限责任公司 | Flexible waveguide and signal transmission system |
| CN105977591A (en) * | 2016-06-01 | 2016-09-28 | 上海阖煦微波技术有限公司 | Sheath used for flexible waveguide assembly and flexible waveguide assembly |
| CN106654488A (en) * | 2016-07-26 | 2017-05-10 | 上海阖煦微波技术有限公司 | Rapid connection attenuator based on flexible waveguide |
| CN109841932A (en) * | 2019-04-02 | 2019-06-04 | 上海阖煦微波技术有限公司 | The flange component that flexible waveguide rubber sheath root is reinforced |
| CN114204242A (en) * | 2021-12-07 | 2022-03-18 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | Millimeter wave soft waveguide preparation method and soft waveguide prepared by same |
-
2015
- 2015-03-25 CN CN201520170548.0U patent/CN204632896U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119033A (en) * | 2015-09-10 | 2015-12-02 | 四川九洲电器集团有限责任公司 | Flexible waveguide and signal transmission system |
| CN105119033B (en) * | 2015-09-10 | 2016-11-09 | 四川九洲电器集团有限责任公司 | A kind of squeezable waveguide and signal transmission system |
| CN105977591A (en) * | 2016-06-01 | 2016-09-28 | 上海阖煦微波技术有限公司 | Sheath used for flexible waveguide assembly and flexible waveguide assembly |
| CN106654488A (en) * | 2016-07-26 | 2017-05-10 | 上海阖煦微波技术有限公司 | Rapid connection attenuator based on flexible waveguide |
| CN109841932A (en) * | 2019-04-02 | 2019-06-04 | 上海阖煦微波技术有限公司 | The flange component that flexible waveguide rubber sheath root is reinforced |
| CN109841932B (en) * | 2019-04-02 | 2023-10-20 | 上海阖煦微波技术有限公司 | Flange member with reinforced root of soft waveguide rubber sheath |
| CN114204242A (en) * | 2021-12-07 | 2022-03-18 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | Millimeter wave soft waveguide preparation method and soft waveguide prepared by same |
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