CN102931548A - High-precision air dielectric radio-frequency coaxial connector - Google Patents
High-precision air dielectric radio-frequency coaxial connector Download PDFInfo
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- CN102931548A CN102931548A CN2012104133639A CN201210413363A CN102931548A CN 102931548 A CN102931548 A CN 102931548A CN 2012104133639 A CN2012104133639 A CN 2012104133639A CN 201210413363 A CN201210413363 A CN 201210413363A CN 102931548 A CN102931548 A CN 102931548A
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Abstract
The invention provides a high-precision air dielectric radio-frequency coaxial connector. The connector comprises a left outer conductor, a right outer conductor, an inner conductor, an upper half insulating support, a lower half insulating support and a clamping ring, wherein the left outer conductor is internally provided with a small-diameter cavity and a large-diameter cavity which have the same center shaft and are communicated; the right outer conductor is of a tube shape and is arranged in the large-diameter cavity of the left outer conductor, and the inner conductor, the upper half insulating support, the lower half insulating support and the clamping ring are all arranged in the left outer conductor; and the inner conductor is of a bilateral symmetry structure and comprises an left excircle column, a left compensating step column, an insulating support clamping groove column, a right compensating step column and a right excircle pillar which are successively connected. The high-precision air dielectric radio-frequency coaxial connector provided by the invention has the outstanding advantages that the structure is simple, the manufacture is easy, the discontinuity caused by adding insulation compensation is reduced, and products are guaranteed to have good voltage standing-wave ratio and operating frequency.
Description
Technical field
The present invention relates to a kind of radio frequency (RF) coaxial connector, especially relate to a kind of high-accuracy air dielectric radio frequency (RF) coaxial connector.
Background technology
Development along with microwave technology, people are more and more higher to the performance requirement of entire system, thereby the requirement to electronic devices and components is also more and more higher, wherein RF coaxial connector require namely require radio frequency (RF) coaxial connector integral body that lower voltage standing wave ratio and higher frequency of utilization should be arranged in major embodiment electric property aspect.By the coaxial line principle as can be known, improve the frequency of utilization of radio frequency (RF) coaxial connector, in equal proportion reduces outer conductor the size of hole dimension and inner conductor outer diameter, be exactly the dielectric constant that reduces to be filled in the dielectric between inner wire and the outer conductor in addition, and the medium of dielectric constant minimum is air, therefore uses air more and more as the radio frequency (RF) coaxial connector of dielectric.
And will make with the radio frequency (RF) coaxial connector of air as dielectric, must between inner wire and outer conductor, add one section insulating supporting (as shown in Figure 1), with the frequency of utilization of final raising radio frequency (RF) coaxial connector integral body, compensate by the discontinuity point that the part is brought because of the adding insulating supporting again and finally guarantee the whole good voltage standing wave ratio of radio frequency (RF) coaxial connector.Therefore, the design difficulty of high-precision radio frequency coaxial connector mainly concentrate on insulating supporting and the compensation problem of the discontinuity that causes on, the mode that existing high-precision radio frequency coaxial connector addresses the above problem mainly contains following several:
1) forms the plane recessed pockets in the insulating supporting both ends of the surface and carry out coplanar compensation, but this mode can form larger discontinuity, for guaranteeing the whole good electric property of connector, need the annular recesses groove of insulating supporting both ends of the surface to have very high precision, because insulating supporting is all for moulding goods, its turning can't be mentioned in the same breath with metalwork, therefore is difficult to realize very high precision, and product percent of pass is extremely low; And the annular recesses groove of both ends of the surface reduced again effective support thickness of insulating supporting to a great extent, so that the Mechanical Reliability of connector is relatively poor, as shown in Figures 2 and 3.
2) employing is vertically punched (such as Fig. 4 and Fig. 5) or is designed to radiation colyliform (such as Fig. 6 and Fig. 7) reduces insulating supporting to add air dielectric dielectric constant, to partly introducing less discontinuity at insulating supporting, by being formed the annular recesses groove, the insulating supporting both ends of the surface carry out coplanar compensation again.But, this kind insulating supporting structure complexity, such as mechanically processing, then the complicated efficient of the course of processing is low, and product percent of pass is extremely low; As by injection mo(u)lding, then cost is high, is not suitable for small lot batch manufacture, and is less economical.
Summary of the invention
The object of the invention is to: for the problem of prior art existence, a kind of production simple in structure, easy is provided, and can reduce to guarantee that product has the high-accuracy air dielectric radio frequency (RF) coaxial connector of good voltage standing wave ratio and frequency of utilization owing to adding the caused discontinuity of insulation compensation.
Goal of the invention of the present invention is achieved through the following technical solutions:
A kind of high-accuracy air dielectric radio frequency (RF) coaxial connector, it is characterized in that, this connector comprises left outside conductor, right outside conductor, inner wire, first insulating supporting, second insulating supporting and collar, minor diameter cavity and major diameter cavity that described left outside conductor inside is provided with concentricity axle and is connected, described right outside conductor in a tubular form, this right outside conductor is located in the major diameter cavity of left outside conductor, and cross tight fit connection with left outside conductor, described inner wire, first insulating supporting, it is inner that second insulating supporting and collar all are located at left outside conductor, inner wire is the left-right symmetric structure, comprise the left outside cylinder that connects successively, left compensation step cylinder, insulating supporting draw-in groove cylinder, right compensation step cylinder and right outside cylinder, described first insulating supporting and second insulating supporting are encircled together on insulating supporting draw-in groove cylinder, and by collar with first insulating supporting, second insulating supporting and insulating supporting draw-in groove cylinder banding, being located in the major diameter cavity of this collar, and clipped by left outside conductor and right outside conductor, the outer wall of collar and left outside conductor are crossed tight fit connection.
Preferably, the diameter of the minor diameter cavity of described left outside conductor equals the interior diameter of right outside conductor, and the diameter of described left outside cylinder equals the diameter of right outside cylinder.
Preferably, the diameter of the insulating supporting draw-in groove cylinder of the interior diameter of collar and inner wire satisfies following equation:
The right outside body diameter of the interior diameter of right outside conductor and inner wire satisfies equation:
And satisfy between the three: Z1=Z2=Z3
Wherein, Z1 is the impedance of the minor diameter cavity segment of connector left end, Z2 is the impedance of intermediate insulation supporting section, Z3 is the impedance of the major diameter cavity segment of connector right-hand member, D11 is the diameter of the minor diameter cavity of left outside conductor, D21 is the diameter of bore of right outside conductor, D31 is the diameter of the left outside cylinder of inner wire, ε 0 is the dielectric constant of air, D61 is the collar interior diameter, D33 is the diameter of the insulating supporting draw-in groove cylinder of inner wire, and D32 is the diameter of the right outside cylinder of inner wire, and ε r is the dielectric constant of insulating supporting.
Preferably, the interior diameter of described collar is greater than the diameter of minor diameter cavity.
Preferably, the thickness of described first insulating supporting equals the thickness of second insulating supporting, and the thickness of first insulating supporting equals the length of insulating supporting draw-in groove cylinder.
Preferably, the preferred 1.5mm of the thickness of described first insulating supporting.
Preferably, the diameter of described left compensation step cylinder equals the diameter of right compensation step cylinder.
Preferably, the diameter of described left compensation step cylinder preferably equals half of right outside cylinder and insulating supporting draw-in groove body diameter sum.
Compared with prior art, the present invention has the following advantages:
1, because insulating supporting medium integral body is column, therefore very easily turning moulding, its processing technology is simple, processing cost is low, can improve product percent of pass, guarantees effective support strength, has excellent Mechanical Reliability;
2, set up a left side by the diameter that dwindles end, insulating supporting both sides inner wire, right compensation step cylinder, so that insulating supporting both sides end inner wire and outer conductor fluting step diminish, thereby so that its discontinuity reduces, remedied that insulating supporting does not add air dielectric and discontinuity that overall dielectric constant is brought more greatly, and the extension by inner wire compensation step cylinder has added compensating inductance simultaneously, further compensate inner wire and outer conductor in the discontinuity capacitance that insulating supporting both sides end face causes because of fluting, finally guaranteed connector integrated electronic function admirable.
3, carry out Compensation Design by more firmly cutting stable metallic inner conductor in material, do not carry out Compensation Design and do not support at the unsettled plastic insulation of the softer cutting of material, so that its parts batch quality of production is stable, greatly improved the qualification rate of final products.
Description of drawings
Fig. 1 is the structural representation of the radio frequency (RF) coaxial connector of tape insulation support;
Fig. 2 is for forming the structural representation that the plane recessed pockets is carried out the insulating supporting of coplanar compensation in both ends of the surface;
Fig. 3 is the A-A sectional structure schematic diagram of Fig. 2;
Fig. 4 is for adopting the vertically structural representation of the insulating supporting of punching;
Fig. 5 is the A-A sectional structure schematic diagram of Fig. 4;
Fig. 6 is for adopting the structural representation of the insulating supporting that is designed to the radiation colyliform;
Fig. 7 is the A-A sectional structure schematic diagram of Fig. 6;
Fig. 8 is structural representation of the present invention;
Fig. 9 is the structural representation of second insulating supporting.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment 1
A kind of high-accuracy air dielectric radio frequency (RF) coaxial connector, such as Fig. 8 and shown in Figure 9, this connector comprises left outside conductor 1, right outside conductor 2, inner wire 3, first insulating supporting 5, second insulating supporting 4 and collar 6.Minor diameter cavity 11 and major diameter cavity 12 that left outside conductor 1 inside is provided with concentricity axle and is connected.Right outside conductor 2 in a tubular form, this right outside conductor 2 is located in the major diameter cavity 12 of left outside conductor 1, and crosses tight fit connection with left outside conductor 1.Inner wire 3, first insulating supporting 5, second insulating supporting 4 and collar 6 all are located at left outside conductor 1 inside, wherein inner wire 3 is the left-right symmetric structure, comprise the left outside cylinder 31 that connects successively, left compensation step cylinder 32, insulating supporting draw-in groove cylinder 33, right compensation step cylinder 34 and right outside cylinder 35, first insulating supporting 5 and second insulating supporting 4 are encircled on insulating supporting draw-in groove cylinder 33 (first insulating supporting 5 and second insulating supporting 4 form for same annulus cutting) together, and pass through collar 6 with first insulating supporting 5, second insulating supporting 4 and insulating supporting draw-in groove cylinder 33 bandings, being located in the major diameter cavity 12 of this collar 6, and be clamped by left outside conductor 1 and right outside conductor 2, the outer wall of collar 6 and left outside conductor 1 are crossed tight fit connection.The two ends, the left and right sides of this connector can be arranged to different interfaces as required, such as the coaxial series connector interface of standard radio frequency, coaxial cable interface, Wave guide system interface etc.
In order to reach optimal effectiveness, the diameter of the minor diameter cavity 11 of left outside conductor 1 can be designed to equal the interior diameter of right outside conductor 2, the diameter of left outside cylinder 31 is designed to equal the diameter of right outside cylinder 35.The diameter of the insulating supporting draw-in groove cylinder of the interior diameter of collar and inner wire satisfies following equation:
The diameter of the diameter of the minor diameter cavity of left outside conductor and the left outside cylinder of inner wire satisfies following equation:
The right outside body diameter of the interior diameter of right outside conductor and inner wire satisfies equation:
And satisfy between the three: Z1=Z2=Z3
Wherein, Z1 is the impedance of the minor diameter cavity segment of connector left end, Z2 is the impedance of intermediate insulation supporting section, Z3 is the impedance of the major diameter cavity segment of connector right-hand member, D11 is the diameter of the minor diameter cavity of left outside conductor, D21 is the diameter of bore of right outside conductor, D31 is the diameter of the left outside cylinder of inner wire, ε 0 is the dielectric constant of air, D61 is the collar interior diameter, D33 is the diameter of the insulating supporting draw-in groove cylinder of inner wire, and D32 is the diameter of the right outside cylinder of inner wire, and ε r is the dielectric constant of insulating supporting.
Because inner conductor structure is symmetrical, the impedance that the size design that is equivalent to each parts will satisfy the minor diameter cavity segment equals the impedance of major diameter cavity segment, also equals simultaneously the impedance of insulating supporting section, so that three sections impedance is consistent.
In addition, the interior diameter of collar 6 is greater than the diameter of minor diameter cavity 11.The thickness of first insulating supporting 5 equals the thickness of second insulating supporting 4, and the thickness of first insulating supporting 5 equals the length of insulating supporting draw-in groove cylinder 33.The diameter of left compensation step cylinder 32 equals the diameter of right compensation step cylinder 34.
During assembling, first first insulating supporting 5 and second insulating supporting 4 are encircled on the insulating supporting draw-in groove cylinder 33 of inner wire 3 and (specifically the inwall 51 of first insulating supporting 5 and the inwall 41 of second insulating supporting 4 are attached on the insulating supporting draw-in groove cylinder 33), and be enclosed within first insulating supporting 5 and second insulating supporting 4 outsides outer wall 42 applyings of inwall 61 with outer wall 52 and second insulating supporting 4 of first insulating supporting 5 of collar 6 (specifically with) with collar 6; Then, the inner wire 3 that assembles in the abovementioned steps is pushed in the major diameter cavity 12 of left outside conductor 1; At last right outside conductor 2 is pushed in the major diameter cavity 12 of left outside conductor 1, prop up inner wire 3, finish assembling.
Embodiment 2
The diameter of left compensation step cylinder 32 is designed to equal half of right outside cylinder 34 and insulating supporting draw-in groove cylinder 33 diameter sums.The Thickness Design of first insulating supporting 5 is become 1.5mm.All the other technical characterictics are consistent with embodiment 1.
The above only is preferred embodiment of the present invention, not in order to limit the present invention, should be pointed out that all any modifications of doing within the spirit and principles in the present invention, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. high-accuracy air dielectric radio frequency (RF) coaxial connector, it is characterized in that, this connector comprises left outside conductor, right outside conductor, inner wire, first insulating supporting, second insulating supporting and collar, minor diameter cavity and major diameter cavity that described left outside conductor inside is provided with concentricity axle and is connected, described right outside conductor in a tubular form, this right outside conductor is located in the major diameter cavity of left outside conductor, and cross tight fit connection with left outside conductor, described inner wire, first insulating supporting, it is inner that second insulating supporting and collar all are located at left outside conductor, inner wire is the left-right symmetric structure, comprise the left outside cylinder that connects successively, left compensation step cylinder, insulating supporting draw-in groove cylinder, right compensation step cylinder and right outside cylinder, described first insulating supporting and second insulating supporting are encircled together on insulating supporting draw-in groove cylinder, and by collar with first insulating supporting, second insulating supporting and insulating supporting draw-in groove cylinder banding, being located in the major diameter cavity of this collar, and clipped by left outside conductor and right outside conductor, the outer wall of collar and left outside conductor are crossed tight fit connection.
2. a kind of high-accuracy air dielectric radio frequency (RF) coaxial connector according to claim 1, it is characterized in that, the diameter of the minor diameter cavity of described left outside conductor equals the interior diameter of right outside conductor, and the diameter of the left outside cylinder of described inner wire equals the diameter of right outside cylinder.
3. a kind of high-accuracy air dielectric radio frequency (RF) coaxial connector according to claim 2 is characterized in that, the diameter of the insulating supporting draw-in groove cylinder of the interior diameter of collar and inner wire satisfies following equation:
The diameter of the diameter of the minor diameter cavity of left outside conductor and the left outside cylinder of inner wire satisfies following equation:
The right outside body diameter of the interior diameter of right outside conductor and inner wire satisfies equation:
And satisfy between the three: Z1=Z2=Z3
Wherein, Z1 is the impedance of the minor diameter cavity segment of connector left end, Z2 is the impedance of intermediate insulation supporting section, Z3 is the impedance of the major diameter cavity segment of connector right-hand member, D11 is the diameter of the minor diameter cavity of left outside conductor, D21 is the diameter of bore of right outside conductor, D31 is the diameter of the left outside cylinder of inner wire, ε 0 is the dielectric constant of air, D61 is the collar interior diameter, D33 is the diameter of the insulating supporting draw-in groove cylinder of inner wire, and D32 is the diameter of the right outside cylinder of inner wire, and ε r is the dielectric constant of insulating supporting.
4. a kind of high-accuracy air dielectric radio frequency (RF) coaxial connector according to claim 3 is characterized in that, the interior diameter of described collar is greater than the diameter of minor diameter cavity.
5. a kind of high-accuracy air dielectric radio frequency (RF) coaxial connector according to claim 3, it is characterized in that, the thickness of described first insulating supporting equals the thickness of second insulating supporting, and the thickness of first insulating supporting equals the length of insulating supporting draw-in groove cylinder.
6. a kind of high-accuracy air dielectric radio frequency (RF) coaxial connector according to claim 5 is characterized in that the preferred 1.5mm of the thickness of described first insulating supporting.
7. a kind of high-accuracy air dielectric radio frequency (RF) coaxial connector according to claim 6 is characterized in that, the diameter of described left compensation step cylinder equals the diameter of right compensation step cylinder.
8. a kind of high-accuracy air dielectric radio frequency (RF) coaxial connector according to claim 7 is characterized in that, the diameter of described left compensation step cylinder preferably equals half of right outside cylinder and insulating supporting draw-in groove body diameter sum.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210413363.9A CN102931548B (en) | 2012-10-25 | 2012-10-25 | High-precision air dielectric radio-frequency coaxial connector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210413363.9A CN102931548B (en) | 2012-10-25 | 2012-10-25 | High-precision air dielectric radio-frequency coaxial connector |
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| CN102931548A true CN102931548A (en) | 2013-02-13 |
| CN102931548B CN102931548B (en) | 2015-04-08 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367967A (en) * | 2013-07-02 | 2013-10-23 | 北京维创时通科技有限公司 | Millimeter wave coaxial connector with novel insulating support structure |
| CN104934814A (en) * | 2015-06-30 | 2015-09-23 | 北京无线电计量测试研究所 | High-temperature-resistant non-welded type radio-frequency coaxial cable connector |
| CN105048153A (en) * | 2015-08-31 | 2015-11-11 | 中国电子科技集团公司第四十研究所 | 110GHz radio-frequency connector |
| CN105514734A (en) * | 2015-12-16 | 2016-04-20 | 中国电子科技集团公司第四十一研究所 | Millimeter wave single-dielectric-support coaxial adapter |
| CN107181025A (en) * | 2017-05-16 | 2017-09-19 | 中国电子科技集团公司第四十研究所 | Microwave transmission system and method for work, RF coaxial switch and electronic measuring instrument |
| CN109004442A (en) * | 2018-08-16 | 2018-12-14 | 中国电子科技集团公司第四十研究所 | A kind of adapter connecing cable connector test |
| CN109031008A (en) * | 2018-07-28 | 2018-12-18 | 中国电子科技集团公司第四十研究所 | A kind of radio-frequency cable component phase surveys auxiliary device fastly |
| CN109713533A (en) * | 2018-12-03 | 2019-05-03 | 中国航天时代电子有限公司 | A kind of coaxial microwave switch V-band coaxial connector and its insulation support body |
| CN110299634A (en) * | 2019-06-27 | 2019-10-01 | 北京无线电计量测试研究所 | A kind of N Connector |
| CN110600952A (en) * | 2018-06-12 | 2019-12-20 | 上海雷迪埃电子有限公司 | High-power tolerance blind-mate coaxial connector |
| CN112864749A (en) * | 2021-01-05 | 2021-05-28 | 北京格润海泰科技有限公司 | Fast-maintenance fast-plugging precise millimeter wave test adapter |
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| CN202308455U (en) * | 2011-10-20 | 2012-07-04 | 成都四威高科技产业园有限公司 | Millimeter-wave radio frequency coaxial series of commutators |
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| CN102044733A (en) * | 2009-10-23 | 2011-05-04 | 西安金波科技有限责任公司 | Coaxial millimeter wave adaptor with air-tight waveguide |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367967A (en) * | 2013-07-02 | 2013-10-23 | 北京维创时通科技有限公司 | Millimeter wave coaxial connector with novel insulating support structure |
| CN104934814B (en) * | 2015-06-30 | 2017-04-05 | 北京无线电计量测试研究所 | A kind of high temperature resistant no-welding type connector for radio-frequency coaxial cable |
| CN104934814A (en) * | 2015-06-30 | 2015-09-23 | 北京无线电计量测试研究所 | High-temperature-resistant non-welded type radio-frequency coaxial cable connector |
| CN105048153A (en) * | 2015-08-31 | 2015-11-11 | 中国电子科技集团公司第四十研究所 | 110GHz radio-frequency connector |
| CN105514734B (en) * | 2015-12-16 | 2017-11-17 | 中国电子科技集团公司第四十一研究所 | A kind of millimeter wave list dielectric support coaxial adatpter |
| CN105514734A (en) * | 2015-12-16 | 2016-04-20 | 中国电子科技集团公司第四十一研究所 | Millimeter wave single-dielectric-support coaxial adapter |
| CN107181025A (en) * | 2017-05-16 | 2017-09-19 | 中国电子科技集团公司第四十研究所 | Microwave transmission system and method for work, RF coaxial switch and electronic measuring instrument |
| CN110600952A (en) * | 2018-06-12 | 2019-12-20 | 上海雷迪埃电子有限公司 | High-power tolerance blind-mate coaxial connector |
| CN109031008A (en) * | 2018-07-28 | 2018-12-18 | 中国电子科技集团公司第四十研究所 | A kind of radio-frequency cable component phase surveys auxiliary device fastly |
| CN109031008B (en) * | 2018-07-28 | 2024-06-11 | 中国电子科技集团公司第四十研究所 | Auxiliary device is surveyed soon to radio frequency cable subassembly phase place |
| CN109004442A (en) * | 2018-08-16 | 2018-12-14 | 中国电子科技集团公司第四十研究所 | A kind of adapter connecing cable connector test |
| CN109713533A (en) * | 2018-12-03 | 2019-05-03 | 中国航天时代电子有限公司 | A kind of coaxial microwave switch V-band coaxial connector and its insulation support body |
| CN110299634A (en) * | 2019-06-27 | 2019-10-01 | 北京无线电计量测试研究所 | A kind of N Connector |
| CN112864749A (en) * | 2021-01-05 | 2021-05-28 | 北京格润海泰科技有限公司 | Fast-maintenance fast-plugging precise millimeter wave test adapter |
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