CN102231464A - Novel test grade sophisticated adapter - Google Patents
Novel test grade sophisticated adapter Download PDFInfo
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- CN102231464A CN102231464A CN2011100924608A CN201110092460A CN102231464A CN 102231464 A CN102231464 A CN 102231464A CN 2011100924608 A CN2011100924608 A CN 2011100924608A CN 201110092460 A CN201110092460 A CN 201110092460A CN 102231464 A CN102231464 A CN 102231464A
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Abstract
The invention provides a novel test grade sophisticated adapter, comprising a tunable coaxial segment, a housing and a thread sleeve. The housing comprises a housing a and a housing b. The housing a and the housing b cooperate through screw threads. The thread sleeve comprises a thread sleeve a and a thread sleeve b. The housing a and the housing b are respectively fixed in the screw sleeve a and the screw sleeve b. The tunable coaxial segment is fixed in the housing a and the housing b. The tunable coaxial segment comprises an internal conductor, an insulator, an outer conductor and an adjusting member. The internal conductor passes through and is fixed in the insulator. The insulator is fixed in the outer conductor. The surface of the outer conductor is at least provided with a screwed hole. The adjusting member cooperated with the screwed hole through screw threads. The invention has a simple structure and an excellent echo loss property. According to the invention, energy reflections and superposed effects of adapters are maximally reduced, residual reflections caused by adapters due to theoretic design and manufacturing tolerance are eliminated and the requirement of a test grade is satisfied.
Description
Technical field
The present invention relates to the accurate adapter of a kind of novel test level, in the RF coaxial adapters category, belong to the microwave coaxial element.
Background technology
RF coaxial adapters is a requisite coaxial component in the microwave test system, and its voltage standing wave ratio performance has very direct influence to the certainty of measurement of test macro, that is to say, can not be removed often by its caused test error.Therefore, test macro is very harsh to the standing-wave ratio requirement of test adaptor device, requires in whole test frequency scope usually, and the standing-wave ratio of test adaptor device should be not more than 1.02.Though the adapter on the domestic market is a lot of at present, its voltage standing wave ratio minimum can only accomplish not reach the requirement of test level far away between 1.10 to 1.20, can only be practical on engineering.So up to now, the coaxial commentaries on classics device of the test level of domestic demand mainly still is a dependence on import.Solve the test level coaxial adatpter of the various multi-form and specification of microwave test urgent need, technical background of the present invention just.
Summary of the invention
The present invention provides a kind of novel test level accurate adapter for addressing the above problem, and this apparatus structure is simple, has eliminated adapter because the remnants reflection that Design Theory and manufacturing tolerance cause has reached the requirement of test level.
For achieving the above object, the technical solution adopted in the present invention is:
The accurate adapter of a kind of novel test level, comprise tunable coax segments, housing, swivel nut, described housing comprises housing one, housing two, described housing one, housing two pass through threaded engagement, described swivel nut comprises swivel nut one, swivel nut two, described housing one, housing two are individually fixed in swivel nut one, the swivel nut two, and described tunable coax segments is fixed in housing one, the housing two.
The present invention further is improved to: described tunable coax segments comprises inner wire, insulator, outer conductor, regulating part, described inner wire runs through and is fixed in the insulator, described insulator is fixed in the outer conductor, has a screwed hole at least on described outer conductor surface, described regulating part and screwed hole threaded engagement.
Described inner wire comprises coaxial inner wire one, inner wire two, inner wire three, and the projection of described inner wire two by its two ends embeds in the end-face hole of inner wire one, inner wire three and be connected and fixed; Described insulator comprises coaxial insulator one, insulator two, described insulator one, insulator two are individually fixed in the two ends in the outer conductor endoporus, and the both sides end face of an end face of insulator one, insulator two and outer conductor is concordant respectively, and the other end is butted on respectively in the outer conductor endoporus on the step surface.
Described inner wire one, inner wire two, inner wire three, insulator one, insulator two, outer conductor are all cylindrical, and the projection at described inner wire two two ends is all cylindrical.
In order to maximally utilise the adjustable range of coax segments, reach and regulate the result that optimal response is arranged, on described outer conductor surface three screwed holes are arranged, the axis of described screwed hole and the axis normal of outer conductor.
Described regulating part is a screw.
The present invention is provided with tunable coax segments, on the sidewall of coax segments outer conductor, disposes the screw of several scalable degree of depth and forms tuning group.By the degree of depth of suitable adjustment screw, eliminate adapter because the remnants reflection that Design Theory and manufacturing tolerance cause finally makes the voltage standing wave ratio of adapter reach about 1.01, thereby reaches the requirement of test level.
The present invention is simple in structure, has excellent return loss characteristic, has reduced the reflection of energy and the synergistic effect of adapter to greatest extent, has eliminated adapter because the remnants reflection that Design Theory and manufacturing tolerance cause has reached the requirement of test level.
Description of drawings
Fig. 1 is a decomposition texture schematic diagram of the present invention.
Fig. 2 is the sectional structure schematic diagram of tunable coax segments.
Among the figure: inner wire 21, protruding 1-1, inner wire 1, end-face hole 21, inner wire 33, end-face hole 31, insulator 1, insulator 25, outer conductor 6, endoporus 61, step surface 62, screwed hole 63, regulating part 7, housing 1, housing 29, swivel nut 1, swivel nut 2 11.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and specific embodiment.
Referring to Fig. 1, Fig. 2, the accurate adapter of a kind of novel test level comprises tunable coax segments, housing, swivel nut.
Housing comprises housing 1, the housing 29 by threaded engagement; Swivel nut comprises swivel nut 1, swivel nut 2 11, and housing 1, housing 29 are individually fixed in swivel nut 1, the swivel nut 2 11; Tunable coax segments is fixed in housing 1, the housing 29.
Tunable coax segments comprises inner wire, insulator, outer conductor 6, regulating part 7, inner wire comprises cylindrical, coaxial inner wire 1, inner wire 21, inner wire 33, and the cylindrical protrusions 1-1 of inner wire 21 by its two ends embeds in the end-face hole 21,31 of inner wire 1, inner wire 33 and be connected and fixed; Insulator comprises cylindrical, coaxial insulator 1, insulator 25, insulator 1, insulator 25 are individually fixed in the two ends in outer conductor 6 endoporus 61, and the both sides end face of an end face of insulator 1, insulator 25 and outer conductor 6 is concordant respectively, and the other end is butted on respectively in outer conductor 6 endoporus 61 on the step surface 62; Inner wire runs through and is fixed in the insulator.Three screwed holes 63 on same straight line are arranged on outer conductor 6 surfaces, the axial location of these three screwed holes 63 be chosen in outer conductor 6 axial two ends each one, one at middle part, setting can maximally utilise the adjustable range of coax segments like this, reaches the result who regulates optimal response; Present embodiment regulating part 7 is a screw, and the length of screw can determine that general outline is longer than screwed hole 63 according to test frequency, anti-electrical property such as withstand voltage.
The present invention is connected with the pairing of tester corresponding connector interface by swivel nut 1, swivel nut 2 11 when work; Three screws are screwed in three screwed holes 63 respectively, the degree of depth by adjustment screw, directly change radially impedance in the tunable coax segments, cause tunable coax segments internal inductance, changes in capacitance, can reach and eliminate adapter because the purpose of the remnants reflection that Design Theory and manufacturing tolerance cause.Because three screws have been formed tuning group, can take into account the tuning variation of electrical property in low frequency arrives the high frequency whole frequency when debugging at the scene, can and intuitively be embodied on the instrument because of its reciprocation significant change of tuning group in its voltage standing wave ratio of the following frequency range of 4GHz.By regulating the different depth of three screws, finally can obtain an optimized voltage standing wave ratio curve.Then can be in three screwed holes 63 the injecting glue sealing, make the curing that is maintained of the optimum performance state of debugging.Tunable coax segments packed into to be connected and fixed in housing 1, the housing 29, can do the precision measurement switching again in the clamping behind swivel nut 1, the swivel nut 2 11 and use.The return loss characteristic that it is excellent has reduced the reflection of energy and the synergistic effect of adapter to greatest extent.The accurate adapter single-piece of this test level adopts the symmetrical structure design, considers that as the accurate adapter of one group of test level of its homologous series the desirable unanimity of its effective electrical length under the situation of same frequency range, consistent wavelength, can effectively be guaranteed the consistency of its phase place.This point has more actual effect in actual applications, can avoid causing because of the intervention of adapter the change of reflection coefficient vectorial property, and its test value embodies the time of day of measured piece as far as possible.
The present invention is simple in structure, has eliminated adapter because the remnants reflection that Design Theory and manufacturing tolerance cause has reached the requirement of test level.
Claims (6)
1. the accurate adapter of a novel test level, it is characterized in that: comprise tunable coax segments, housing, swivel nut, described housing comprises housing one, housing two, described housing one, housing two pass through threaded engagement, described swivel nut comprises swivel nut one, swivel nut two, described housing one, housing two are individually fixed in swivel nut one, the swivel nut two, and described tunable coax segments is fixed in housing one, the housing two.
2. the accurate adapter of novel test level according to claim 1, it is characterized in that: described tunable coax segments comprises inner wire, insulator, outer conductor, regulating part, described inner wire runs through and is fixed in the insulator, described insulator is fixed in the outer conductor, has a screwed hole at least on described outer conductor surface, described regulating part and screwed hole threaded engagement.
3. the accurate adapter of novel test level according to claim 2, it is characterized in that: described inner wire comprises coaxial inner wire one, inner wire two, inner wire three, and the projection of described inner wire two by its two ends embeds in the end-face hole of inner wire one, inner wire three and be connected and fixed; Described insulator comprises coaxial insulator one, insulator two, described insulator one, insulator two are individually fixed in the two ends in the outer conductor endoporus, and the both sides end face of an end face of insulator one, insulator two and outer conductor is concordant respectively, and the other end is butted on respectively in the outer conductor endoporus on the step surface.
4. the accurate adapter of novel test level according to claim 3 is characterized in that: described inner wire one, inner wire two, inner wire three, insulator one, insulator two, outer conductor are all cylindrical, and the projection at described inner wire two two ends is all cylindrical.
5. according to claim 2 or the accurate adapter of 3 or 4 described novel test levels, it is characterized in that: on described outer conductor surface three screwed holes are arranged, the axis of described screwed hole and the axis normal of outer conductor.
6. the accurate adapter of novel test level according to claim 2, it is characterized in that: described regulating part is a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100924608A CN102231464A (en) | 2011-04-13 | 2011-04-13 | Novel test grade sophisticated adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100924608A CN102231464A (en) | 2011-04-13 | 2011-04-13 | Novel test grade sophisticated adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102231464A true CN102231464A (en) | 2011-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100924608A Pending CN102231464A (en) | 2011-04-13 | 2011-04-13 | Novel test grade sophisticated adapter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066435A (en) * | 2013-01-17 | 2013-04-24 | 镇江市丹徒区佳兴电子有限公司 | Rapid testing rotary joint |
| CN104283079A (en) * | 2013-07-02 | 2015-01-14 | 江苏宏信电子科技有限公司 | Reversed polarity radio frequency coaxial adapter and manufacturing method thereof |
| CN105576427A (en) * | 2014-10-31 | 2016-05-11 | 摩托罗拉解决方案公司 | Connector providing combined fastener and radio frequency interface |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB872840A (en) * | 1958-11-14 | 1961-07-12 | Don Lan Electronics Inc | Ultra-high frequency double stub tuner |
| US20060258225A1 (en) * | 2005-05-10 | 2006-11-16 | Lih Yeu Seng Industries Co., Ltd. | Adapter for high frequency signal transmission |
| CN201533039U (en) * | 2009-07-31 | 2010-07-21 | 东莞宇球电子有限公司 | Audio/video socket metal terminal |
| CN202076636U (en) * | 2011-04-13 | 2011-12-14 | 常州市武进凤市通信设备有限公司 | Novel test-grade precise adapter |
-
2011
- 2011-04-13 CN CN2011100924608A patent/CN102231464A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB872840A (en) * | 1958-11-14 | 1961-07-12 | Don Lan Electronics Inc | Ultra-high frequency double stub tuner |
| US20060258225A1 (en) * | 2005-05-10 | 2006-11-16 | Lih Yeu Seng Industries Co., Ltd. | Adapter for high frequency signal transmission |
| CN201533039U (en) * | 2009-07-31 | 2010-07-21 | 东莞宇球电子有限公司 | Audio/video socket metal terminal |
| CN202076636U (en) * | 2011-04-13 | 2011-12-14 | 常州市武进凤市通信设备有限公司 | Novel test-grade precise adapter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066435A (en) * | 2013-01-17 | 2013-04-24 | 镇江市丹徒区佳兴电子有限公司 | Rapid testing rotary joint |
| CN104283079A (en) * | 2013-07-02 | 2015-01-14 | 江苏宏信电子科技有限公司 | Reversed polarity radio frequency coaxial adapter and manufacturing method thereof |
| CN105576427A (en) * | 2014-10-31 | 2016-05-11 | 摩托罗拉解决方案公司 | Connector providing combined fastener and radio frequency interface |
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Application publication date: 20111102 |