CN104393463B - Improve the method and component of flexible microwave coaxial cable mechanical phase stability - Google Patents
Improve the method and component of flexible microwave coaxial cable mechanical phase stability Download PDFInfo
- Publication number
- CN104393463B CN104393463B CN201410669290.9A CN201410669290A CN104393463B CN 104393463 B CN104393463 B CN 104393463B CN 201410669290 A CN201410669290 A CN 201410669290A CN 104393463 B CN104393463 B CN 104393463B
- Authority
- CN
- China
- Prior art keywords
- coaxial cable
- cable
- tensioning
- component
- coaxial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Communication Cables (AREA)
- Testing Relating To Insulation (AREA)
- Manufacturing Of Electric Cables (AREA)
Abstract
The invention discloses a kind of method for improving flexible microwave coaxial cable mechanical phase stability, this method applies pre-tightening tension at the two ends of coaxial cable.The invention also discloses a kind of flexible microwave co-axial cable component, the CA cable assembly includes coaxial cable and is wrapped in the sheath of coaxial outer, and pre-tensioning adjustment mechanism is provided with the welding structure at coaxial cable two ends.The present invention is substantially reduced influence of the test cable component mechanical deflection to transmission phase, is consistent the pre-tensioning of each coaxial cable, so as to eliminate the mechanical phase stability difference of the material property error and length processing error band of coaxial cable and sheath；It can obviously improve the phase stability of test cable component mechanical deflection.In addition to test cable component, the present invention is all suitable for all microwave flexible cable assemblies with the steady phasic property requirement of machinery.
Description
Technical field
The present invention relates to a kind of method and component for improving flexible microwave coaxial cable mechanical phase stability.
Background technology
In microwave communication and testing field, flexible microwave co-axial cable component is mainly used in microwave between communication and test system
The transmission of signal.One of its typical case's application is the measurement analysis of microwave device power attenuation, gain and phase characteristic.It is this to survey
Amount analysis is generally by vector network analyzer (referred to as arrow net) and the steady phase microwave coaxial test cable component of high-performance fixed ampllitude
(abbreviation test cable component), complete jointly.Wherein test cable component is used to connect arrow net test port and measured device
Input/output port, be the flexible transfer passage (such as Fig. 1) of microwave signal.In test process, to meet test cable group
Different degrees of mechanical deflection would generally occur for the physical connection requirements between part and each port of measured device, test cable component.
The stress that this mechanical deflection is produced will cause test cable length component and the microwave property of each composition material to change, from
And have influence on the transmission amplitude and phase of microwave signal.In addition, test cable component twisting, stretch and during transverse shear stress
Different degrees of change can occur for transmission characteristic.This characteristic of test cable component is referred to as mechanical phase amplitude stabilization
Property.Because phase characteristic is more sensitive to mechanical deformation, therefore commonly referred to as mechanical phase stability.The machine of test cable component
Tool phase stability will produce different degrees of influence to the measuring accuracy of detected element.Therefore, mechanical phase stability is weighing apparatus
Measure the important indicator of the coaxial test cable component of flexible microwave.
By taking above-mentioned test cable component as an example, the steady phase technical scheme of machinery of existing flexible microwave co-axial cable component is as schemed
2.Test cable is made up of coaxial connector, sheath, the part of coaxial cable three.Its principle of stationary phase is：Coaxial cable is using special
Mechanical phase-compensated cable, the phase place change brought of bending can be reduced；Outside coaxial cable one or more layers sheath of surface cover to
Anti- extraneous stretching, reverse and transverse direction pressure and control the maximum bending amplitude of coaxial cable so that reduce coaxial cable axially,
Stress that is horizontal and reversing, improves the mechanical stability of test cable component.
Prior art despite the use of sheath come the axial, transverse direction and distorting stress that reduce that coaxial cable is subject to, but
Coaxial cable length and the stress variation of each composition material caused by CA cable assembly bending can not still be overcome.As shown in figure 3, sheath
During interior coaxial cable bending, the layers of material compression chord on the inside of cable, cladding material tension stress；And during back-flexing, by
Power state is completely on the contrary, therefore coaxial cable medium material stress amplitude of variation is larger；In addition coaxial cable has certain in itself
Elasticity, cable can be elongated during bending.These will all cause the change of transmission characteristic.Therefore existing test cable module testing
During, transmission phase still suffers from the change of certain amplitude with cable folding, and mechanical phase stability can not still meet height
Accuracy test demand.Further, since the presence of the material property error and length processing error of coaxial cable, sheath, causes to survey
The initial stress state for trying cable and sheath material after CA cable assembly assembling is different, therefore the machinery of each test cable component
Phase stability differs greatly, and qualification rate is relatively low.General to be produced using screening mode, cost greater efficiency is low, even if qualified
The steady phase performance indications discreteness of machinery of product is also larger.
The content of the invention
The purpose of the present invention is that can to significantly improve flexible microwave coaxial in view of the deficienciess of the prior art, providing one kind
The method of cable machinery phase stability.
For achieving the above object, the technical solution adopted by the present invention improves flexible microwave coaxial cable machinery to be a kind of
The method of phase stability, this method applies pre-tightening tension at the two ends of coaxial cable.The pre-tensioning is in coaxial cable
Tension, now coaxial cable elongates amplitude under equal bending radius and diminished, and pre-tensioning makes two inside and outside bending radius
Side layers of material is while Tensile stress, the stress variation amplitude of material when reducing cyclic bending.This will be substantially reduced
Influence of the test cable component mechanical deflection to transmission phase.
The pre-tightening tension for can Continuous Adjustment pre-tensioning, be consistent the pre-tensioning of each coaxial cable,
So as to eliminate the mechanical phase stability difference that the material property error and length processing error band of coaxial cable and sheath are come.
The invention also discloses a kind of flexible microwave co-axial cable component, including coaxial cable and it is wrapped in outside coaxial cable
The sheath of layer, is provided with pre-tensioning adjustment mechanism in the welding structure at coaxial cable two ends.
To reach more preferable Adjustment effect, the pre-tensioning adjustment mechanism adjusts machine for the pre-tensioning of continuously adjustable
Structure.
It is preferred that, the pre-tensioning adjustment mechanism is threaded adjustment mechanisms, including screw thread and nut pass through adjusting nut
Move left and right to adjust tensile force size on screw thread.
It is preferred that, the pre-tensioning adjustment mechanism is many pad adjustment mechanisms, by the quantity of adjust pad, to adjust
Tensile force size.
The present invention designs adjustment mechanism (such as threaded adjustment mechanisms) on the welded unit at coaxial cable two ends, passes through adjustment
The regulation of mechanism loads a pre-tensioning to coaxial cable.The pre-tensioning makes coaxial cable be in tension, now together
Shaft cable elongates amplitude under equal bending radius and diminished, and pre-tensioning make inside and outside bending radius layers of material simultaneously by
Tensile stress is acted on, the stress variation amplitude of material when reducing cyclic bending.This will be substantially reduced test cable component machinery
Bend the influence to transmitting phase.The Continuous Adjustment of pre-tensioning can also be realized using threaded adjustment mechanisms, is made each coaxial
The pre-tensioning of cable is consistent, so that the material property error and length processing error band that eliminate coaxial cable and sheath are come
Mechanical phase stability difference.The yield rate and uniformity of test cable component batch production are effectively improved, so as to improve life
Produce efficiency.
Beneficial effect：The present invention is substantially reduced influence of the test cable component mechanical deflection to transmission phase, makes each coaxial
The pre-tensioning of cable is consistent, so that the material property error and length processing error band that eliminate coaxial cable and sheath are come
Mechanical phase stability difference；It can obviously improve the phase stability of test cable component mechanical deflection.Except test cable group
Outside part, the present invention is all suitable for all microwave flexible cable assemblies with the steady phasic property requirement of machinery.
Brief description of the drawings
Fig. 1 is microwave component electric performance test system；
Fig. 2 is the existing steady phase technical scheme of test cable component machinery；
The stress variation schematic diagram of coaxial cable and each composition material of sheath when Fig. 3 is the bending of test cable component；
Fig. 4 is schematic structural view of the invention；
Fig. 5 is threaded adjustment mechanisms structural representation；
Fig. 6 is many pad adjustment mechanism structural representations.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is furture elucidated, and the present embodiment is with technical solution of the present invention
Premised on lower implemented, it should be understood that these embodiments are only illustrative of the invention and is not intended to limit the scope of the invention.
A kind of method for improving flexible microwave coaxial cable mechanical phase stability, this method is applied at the two ends of coaxial cable
Plus pre-tightening tension.The pre-tensioning makes coaxial cable be in tension, and now coaxial cable is elongated under equal bending radius
Amplitude diminishes, and pre-tensioning makes layers of material inside and outside bending radius while Tensile stress, is reduced reciprocal curved
The stress variation amplitude of material when bent.This will be substantially reduced influence of the test cable component mechanical deflection to transmission phase.Wherein
Pre-tightening tension for can Continuous Adjustment pre-tensioning, be consistent the pre-tensioning of each coaxial cable, so as to eliminate coaxial
The mechanical phase stability difference that the material property error and length processing error band of cable and sheath are come.
As shown in figure 4, a kind of flexible microwave co-axial cable component, including coaxial cable 1 and it is wrapped in the outer layer of coaxial cable 1
Sheath 2, in the welding structure at coaxial cable two ends be provided with continuously adjustable pre-tensioning adjustment mechanism 3.
It is applied with the two ends of coaxial cable after pre-tensioning, coaxial cable is in tension, now coaxial electrical
Cable elongates amplitude under equal bending radius and diminished, and pre-tensioning makes layers of material inside and outside bending radius while Tensile
Stress, the stress variation amplitude of material when reducing cyclic bending is substantially reduced test cable component mechanical deflection to biography
The influence of defeated phase.
Fig. 5 is threaded adjustment mechanisms, including screw thread 4 and nut 5, is moved left and right and may be used also on screw thread 4 by adjusting nut 5
To realize the Continuous Adjustment of pre-tensioning, be consistent the pre-tensioning of each coaxial cable, thus eliminate coaxial cable and
The mechanical phase stability difference that the material property error and length processing error band of sheath are come.
Fig. 6 is many pad adjustment mechanisms, and it realizes the continuity of pre-tensioning by adding or reducing the quantity of pad 6
Adjustment, is consistent the pre-tensioning of each coaxial cable, so as to eliminate the material property error and length of coaxial cable and sheath
The mechanical phase stability difference that degree mismachining tolerance is brought.
Claims (4)
1. a kind of flexible microwave co-axial cable component, including coaxial cable (1) and the sheath for being wrapped in coaxial cable (1) outer layer
(2), it is characterised in that：Pre-tensioning adjustment mechanism (3) is provided with the welding structure at coaxial cable (1) two ends, by described
The regulation of adjustment mechanism loads a pre-tensioning to the coaxial cable, the coaxial cable is in tension.
2. flexible microwave co-axial cable component according to claim 1, it is characterised in that：The pre-tensioning adjustment mechanism
(3) it is the pre-tensioning adjustment mechanism of continuously adjustable.
3. flexible microwave co-axial cable component according to claim 1 or claim 2, it is characterised in that：The pre-tensioning adjusts machine
Structure (3) is threaded adjustment mechanisms, including screw thread (4) and nut (5) pass through adjusting nut (5) moving left and right on screw thread (4)
To adjust tensile force size.
4. flexible microwave co-axial cable component according to claim 1 or claim 2, it is characterised in that：The pre-tensioning adjusts machine
Structure (3) is many pad adjustment mechanisms, by the quantity of adjust pad (6), to adjust tensile force size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410669290.9A CN104393463B (en) | 2014-11-20 | 2014-11-20 | Improve the method and component of flexible microwave coaxial cable mechanical phase stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410669290.9A CN104393463B (en) | 2014-11-20 | 2014-11-20 | Improve the method and component of flexible microwave coaxial cable mechanical phase stability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104393463A CN104393463A (en) | 2015-03-04 |
| CN104393463B true CN104393463B (en) | 2017-10-13 |
Family
ID=52611319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410669290.9A Active CN104393463B (en) | 2014-11-20 | 2014-11-20 | Improve the method and component of flexible microwave coaxial cable mechanical phase stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104393463B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098240B (en) * | 2016-07-27 | 2017-08-29 | 中国电子科技集团公司第四十一研究所 | A kind of coaxial semi-rigid cable component for meeting phase equalization requirement |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201577094U (en) * | 2009-12-15 | 2010-09-08 | 武汉安凯电缆有限公司 | Quick connection device in radio-frequency cable assembly passive intermodulation test |
| CN201789085U (en) * | 2010-07-29 | 2011-04-06 | 江苏通鼎光电股份有限公司 | Adjustable radio-frequency coaxial cable testing connector |
| CN203445343U (en) * | 2013-07-03 | 2014-02-19 | 浩网科技股份有限公司 | Cable assembly and signal transmission system thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2367944A (en) * | 1942-10-09 | 1945-01-23 | Titefiex Inc | Metal conduit |
| US2438146A (en) * | 1945-06-07 | 1948-03-23 | American Brass Co | Flexible metal hose |
| US4731502A (en) * | 1986-10-21 | 1988-03-15 | W. L. Gore & Associates, Inc. | Limited bend-radius transmission cable also having controlled twist movement |
| US5347244A (en) * | 1992-12-29 | 1994-09-13 | Canadian Marconi Company | Broadband directional coupler using cables |
| CN201130702Y (en) * | 2007-12-15 | 2008-10-08 | 山西通用集团股份有限公司 | 7 millimeters plane joint microwave coaxial matched load |
| CN103107465A (en) * | 2011-11-14 | 2013-05-15 | 西安艾力特电子实业有限公司 | Cable assembly |
| CN202471767U (en) * | 2012-02-23 | 2012-10-03 | 深圳市速联连接器有限公司 | Quick point test connector |
-
2014
- 2014-11-20 CN CN201410669290.9A patent/CN104393463B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201577094U (en) * | 2009-12-15 | 2010-09-08 | 武汉安凯电缆有限公司 | Quick connection device in radio-frequency cable assembly passive intermodulation test |
| CN201789085U (en) * | 2010-07-29 | 2011-04-06 | 江苏通鼎光电股份有限公司 | Adjustable radio-frequency coaxial cable testing connector |
| CN203445343U (en) * | 2013-07-03 | 2014-02-19 | 浩网科技股份有限公司 | Cable assembly and signal transmission system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104393463A (en) | 2015-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100507503C (en) | A uniaxial bidirectional symmetric tensile testing machine | |
| CN105403337A (en) | Fiber grating bolt stress sensor with pre-stretching device | |
| CN103499413B (en) | Power lever and lever power standard set-up | |
| Qiu et al. | Highly sensitive and flexible capacitive elastomeric sensors for compressive strain measurements | |
| US20150253228A1 (en) | Fatigue testing | |
| KR101649451B1 (en) | Universal testing machine with muti-axis | |
| CN104393463B (en) | Improve the method and component of flexible microwave coaxial cable mechanical phase stability | |
| US20210270684A1 (en) | Flexible module and display device | |
| CN101216389A (en) | Apparatus and method for testing mechanical properties of agricultural materials | |
| CN105092191A (en) | Helicopter composite material propeller fatigue test system and method | |
| WO2011082317A3 (en) | Device for measuring strain in a component | |
| CN113607533B (en) | Preparation device and preparation process of carbon fiber multifilament test sample bar | |
| CN104977104B (en) | Piezoelectric small-range large-range ratio force-measuring device | |
| CN103528752A (en) | Force and moment lever and force and torque standard device | |
| CN106768509A (en) | A kind of adjustable testing transformer of winding stress | |
| CN104122082A (en) | Spacer damping characteristic and fatigue testing system | |
| CN115855471A (en) | Performance test method of viscous damper with variable damping coefficient | |
| CN102735543A (en) | Testing machine for comprehensive properties of tensile strength, ring stiffness and flattening performance of tubes | |
| CN104155053B (en) | A kind of hydro-cushion quiet calibration device of loaded type high pulling torque | |
| CN102997860B (en) | Surface-mounted fiber bragg grating strain gauge | |
| KR101685434B1 (en) | Device for evqluation test of torque and torsionally in composite materials for aircraft | |
| CN104359392A (en) | Pull rod type underwater structure deformation measuring device | |
| CN202837094U (en) | Testing machine for tension, ring stiffness and flattening combination properties of tubing | |
| CN106158078B (en) | Cable, twisted-pair feeder and preparation method thereof and computing device | |
| CN209508633U (en) | A kind of liquid ammonia mercerizer tension sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |