CN104112885B - The high-performance strip transmission line guide mechanism of microwave mechanical switch - Google Patents
The high-performance strip transmission line guide mechanism of microwave mechanical switch Download PDFInfo
- Publication number
- CN104112885B CN104112885B CN201410211750.3A CN201410211750A CN104112885B CN 104112885 B CN104112885 B CN 104112885B CN 201410211750 A CN201410211750 A CN 201410211750A CN 104112885 B CN104112885 B CN 104112885B
- Authority
- CN
- China
- Prior art keywords
- inner conductor
- central inner
- transmission line
- guide posts
- sheet central
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 41
- 239000004020 conductor Substances 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000012212 insulator Substances 0.000 claims abstract description 8
- 230000033001 locomotion Effects 0.000 claims abstract description 6
- 229920003023 plastic Polymers 0.000 claims abstract description 4
- 239000004033 plastic Substances 0.000 claims abstract description 3
- 238000005299 abrasion Methods 0.000 claims description 2
- 230000006866 deterioration Effects 0.000 abstract 1
- 230000008054 signal transmission Effects 0.000 description 4
- 239000003989 dielectric material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Abstract
Present invention mainly solves the problem of existing strip transmission line sheet central inner conductor guide mechanism guidance accuracy is not high, microwave high-frequency transmission characteristic is poor.Two pilot holes are driven on sheet central inner conductor axis, insulator guide posts pass through pilot hole, and theoretical diameter is identical with pilot hole, so as to realize the limitation to sheet central inner conductor laterally and axially two direction of motion.Guide posts move to axis by sheet central inner conductor edge, eliminate influence of the guide posts to filled media dielectric constant.Therefore guide posts are set significantly to reduce the deterioration of strip transmission line microwave property at sheet central inner conductor axis.In addition, the high-strength high temperature-resistant plastic material that anti-wear performance is good, thermal coefficient of expansion is low can be selected by guiding column material, using this kind of material the fit clearance between guide posts and sheet central inner conductor pilot hole can be made significantly to reduce, significantly improve the guiding accuracy of guide mechanism.So as to can further improve the microwave transmission characteristic of strip transmission line.
Description
Technical field
The present invention relates to a kind of microwave switch, the high-performance strip transmission line guiding of more particularly to a kind of microwave mechanical switch
Mechanism.
Background technology
Strip transmission line has the advantages of transmission loss is low, power capacity is big as a kind of microwave transmission line.Due to wherein
Intracardiac conductor is flat sheet, is physically easily achieved and is mutually overlapped with coaxial transmission line and homogeneous transport line.Cause
This is highly suitable for needing the microwave control elements such as the microwave mechanical switch of switching microwave signal transmission path.Strip transmission line
It is made up of rectangle outer conductor and sheet central inner conductor, and both are symmetrical along public symmetrical centre.In signal transmission pathway
In handoff procedure, sheet central inner conductor translates along symmetrical centre between rectangle outer conductor center and side wall.To realize sheet
The translation of central inner conductor, it is necessary to accordingly limited by limiting motion of the mechanism to sheet central inner conductor all directions, its
The restriction mechanism of middle limitation sheet central inner conductor transverse shifting is referred to as guide mechanism.And the introducing of guide mechanism will bring transmission
The change of line physical arrangement, also accordingly bring the impedance mismatching as caused by being mutated geometry.In addition, sheet central inner conductor
Lateral attitude precision during translational motion can also make a significant impact on microwave transmission characteristic.Therefore, the microwave of guide mechanism
Match somebody with somebody and guidance accuracy is an important factor for influenceing microwave signal transmission quality.
Existing transmission line guide mechanism technical scheme, between the air of sheet central inner conductor both sides and outer conductor sidewall
Four insulator guide posts are put into gap, because guide posts theoretical diameter is identical with the air gap, therefore sheet central inner conductor
Can not transverse translation or rotation, realize limitation sheet central inner conductor transverse movement function.According to microwave theory, banding passes
The dielectric constant of filled media is to determine the main of characteristic impedance between defeated line rectangle outer conductor and sheet central inner conductor edge
One of parameter.After insulator guide posts are put into the air gap, strip transmission line rectangle outer conductor and sheet central inner conductor
Filled media between edge is changed, and this will cause the mismatch of strip transmission line characteristic impedance.In addition, introduced to reduce
The change in dielectric constant that guide posts are brought, the relatively low dielectric material of guide posts generally use dielectric constant, such as PTFE, and it is this kind of
The thermal coefficient of expansion of material is of a relatively high, and when environment temperature changes, guiding column diameter can vary widely.In order to ensure piece
Shape central inner conductor moves vertically smooth, between the thermal expansion that material must be reserved between sheet central inner conductor and guide posts
Gap.This guidance accuracy for resulting in guide mechanism is greatly reduced.
The content of the invention
The technology of the present invention solves problem：Overcome the deficiencies in the prior art, there is provided a kind of high-performance banding transmission is led
Draw mechanism, solve that existing strip transmission line sheet central inner conductor guide mechanism guidance accuracy is high, microwave high-frequency transmission characteristic
The problem of poor, so as to improve the microwave signal transmission quality of strip transmission line.
The technical scheme is that：Two pilot holes are driven on sheet central inner conductor axis, insulator guide posts are worn
Pilot hole is crossed, theoretical diameter is identical with pilot hole, so as to realize to sheet central inner conductor laterally and axially two motion sides
To limitation.Guide posts move to axis by sheet central inner conductor edge, eliminate guide posts to filled media dielectric constant
Influence.From microwave theory, at sheet central inner conductor axial location, strip transmission line electromagnetic field intensity is minimum, physics
Influence of the change of structure and dielectric material to transmission line characteristic impedance is also relatively minimum, and can be added by other matching means
With compensation.Therefore guide posts are set significantly to reduce the evil of strip transmission line microwave property at sheet central inner conductor axis
Change.In addition, the selection of guiding column material is no longer restricted by microwave property, it can select that anti-wear performance is good, thermal coefficient of expansion is low
High-strength high temperature-resistant plastic material, it can be made using this kind of material between the cooperation between guide posts and sheet central inner conductor pilot hole
Gap significantly reduces, and significantly improves the guiding accuracy of guide mechanism.So as to can further improve the microwave transmission of strip transmission line
Characteristic.High-wearing feature material also helps the prolonged mechanical life-span simultaneously.
The present invention having the technical effect that compared with prior art：
(1) existing guide mechanism makes strip transmission line characteristic impedance mismatch, and microwave transmission characteristic deteriorates；Existing guide mechanism
Material thermal expansion coefficient is big, and guidance accuracy is low；Existing guide mechanism structure is relative complex, and assembling difficulty is higher.
(2) present invention sets guide posts significantly to reduce to band at sheet central inner conductor axis compared with prior art
The influence of shape transmission line microwave characteristic impedance, significantly improve the microwave transmission characteristic of strip transmission line；Improve guide mechanism
Guidance accuracy, it is also beneficial to improve the microwave transmission characteristic of strip transmission line；After lead moves to axis and reduces quantity, structure
Upper relative easily realization, while reduce assembling difficulty.
The key point of the present invention and protection point are：(1) two pilot holes are set on sheet central inner conductor axis；(2)
Guide posts pass through pilot hole, with sheet central inner conductor vertical distribution；(3) guide posts material selection high abrasion, low-thermal-expansion system
Several high-temperature resistance plastices.
Brief description of the drawings
Fig. 1 is technical scheme figure；
Fig. 2 is the operation principle structural representation of the present invention；
Fig. 3 is strip transmission line sectional view；
Fig. 4 is strip transmission line plan；
Fig. 5 is existing strip transmission line guide mechanism technical scheme figure.
Embodiment
As shown in Figure 1, 2, it is main the invention provides a kind of high-performance strip transmission line guide mechanism of microwave mechanical switch
It is embodied in guide posts 1, pilot hole 2, sheet central inner conductor 6.
As shown in figure 1,1 guide posts 1 are using the high-temperature resistance plastice that wearability is good, thermal coefficient of expansion is low；Between 3 expression thermal expansions
Gap reduces；4 represent pilot hole and guide posts；5 represent sheet central inner conductor axis.
As shown in Fig. 2 lead 1 passes through the pilot hole 2 in sheet central inner conductor 6.
As shown in figure 3,7 represent transverse shifting；8 represent rectangle outer conductor；9 represent between rectangle outer conductor center and side wall
Translation；10 represent public symmetrical centre.
As shown in figure 5,11 represent expansion gap.
The content not being described in detail in description of the invention belongs to the known technology of those skilled in the art.
Claims (1)
1. a kind of high-performance strip transmission line guide mechanism of microwave mechanical switch, the high-performance strip transmission line by rectangle outside
Conductor and sheet central inner conductor are formed, and both are symmetrical along public symmetrical centre, it is characterised in that：The sheet center
Two pilot holes are provided with inner wire axis, the high-performance strip transmission line guide mechanism of the microwave mechanical switch includes two
Individual insulator guide posts, the diameter of the insulator guide posts is identical with the diameter of the pilot hole, the insulator guide posts
Through the pilot hole, and the sheet central inner conductor vertical distribution, can be achieved to the sheet central inner conductor laterally and
The axially limitation of two direction of motion, the material selection high abrasion of the insulator guide posts, the high temperature resistant of low thermal coefficient of expansion
Plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410211750.3A CN104112885B (en) | 2014-05-20 | 2014-05-20 | The high-performance strip transmission line guide mechanism of microwave mechanical switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410211750.3A CN104112885B (en) | 2014-05-20 | 2014-05-20 | The high-performance strip transmission line guide mechanism of microwave mechanical switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104112885A CN104112885A (en) | 2014-10-22 |
| CN104112885B true CN104112885B (en) | 2017-12-08 |
Family
ID=51709591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410211750.3A Active CN104112885B (en) | 2014-05-20 | 2014-05-20 | The high-performance strip transmission line guide mechanism of microwave mechanical switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104112885B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE68906062D1 (en) * | 1988-03-18 | 1993-05-27 | Thomson Csf | MICROWAVE SWITCH. |
| US5304960A (en) * | 1993-04-01 | 1994-04-19 | Satyendranath Das | Ferroelectric total internal reflection RF switch |
| US5841342A (en) * | 1995-10-13 | 1998-11-24 | Com Dev Ltd. | Voltage controlled superconducting microwave switch and method of operation thereof |
| CN202759011U (en) * | 2012-08-09 | 2013-02-27 | 成都市大富科技有限公司 | Air strip line bridge |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05199019A (en) * | 1992-01-18 | 1993-08-06 | Fujitsu Ltd | High frequency circuit package |
| JPH06303010A (en) * | 1993-04-14 | 1994-10-28 | Sony Corp | High frequency transmission line and integrated circuit device using the same, and connceting method for high frequency plane circuit |
| US6730928B2 (en) * | 2001-05-09 | 2004-05-04 | Science Applications International Corporation | Phase change switches and circuits coupling to electromagnetic waves containing phase change switches |
-
2014
- 2014-05-20 CN CN201410211750.3A patent/CN104112885B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE68906062D1 (en) * | 1988-03-18 | 1993-05-27 | Thomson Csf | MICROWAVE SWITCH. |
| US5304960A (en) * | 1993-04-01 | 1994-04-19 | Satyendranath Das | Ferroelectric total internal reflection RF switch |
| US5841342A (en) * | 1995-10-13 | 1998-11-24 | Com Dev Ltd. | Voltage controlled superconducting microwave switch and method of operation thereof |
| CN202759011U (en) * | 2012-08-09 | 2013-02-27 | 成都市大富科技有限公司 | Air strip line bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104112885A (en) | 2014-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2830149B1 (en) | Circulator with ferrite element attached to waveguide sidewalls | |
| CN104112885B (en) | The high-performance strip transmission line guide mechanism of microwave mechanical switch | |
| JP2019145517A (en) | Apparatus for temperature control of ion source | |
| CN103270560B (en) | Transformer winding and transformer | |
| CN102176528A (en) | High-power waveguide PD (power divider) capable of regulating output power | |
| CN203721853U (en) | Novel cavity phase shifter | |
| WO2022121874A1 (en) | Double-acting arc-extinguishing chamber transmission structure | |
| JP2010232032A (en) | Operation mechanism for gas-blast circuit breaker | |
| US10342115B2 (en) | High-frequency-tuning sliding electrical contact | |
| CN102480055B (en) | Negative-magnetic-permeability meta-material | |
| CN106783371B (en) | A kind of vacuum extinction cell structure of breaker | |
| Billo et al. | Expression of p53 in gallbladder carcinoma and in dysplastic and metaplastic lesions of the surrounding mucosa | |
| CN204991590U (en) | Vacuum interrupter and coil type contact subassembly and current coil thereof | |
| CN103943406B (en) | A kind of Multiple level vacuum interrupter | |
| CN206379602U (en) | A kind of novel high-frequency tuning slidingtype electrical contact contact | |
| CN103715008B (en) | One is composite vacuum arc-extinguishing chamber contact structure in length and breadth | |
| CN103915663B (en) | A kind of sheet metal high power waveguide phase shifter | |
| CN105027248B (en) | Vacuum valve | |
| CN105633512A (en) | Special-shaped reed structure for T-shaped satellite-borne microwave switch | |
| CN104112886B (en) | The strip transmission line precision positioning mechanism of microwave mechanical switch | |
| CN207021204U (en) | A kind of resistant to elevated temperatures vacuum interrupter guide sleeve | |
| CN105023798A (en) | Vacuum arc-extinguishing chamber, coil-type contact element and current coil | |
| CN213845144U (en) | Guide sleeve applied to vacuum arc extinguish chamber of energy-saving transformer | |
| CN204375640U (en) | The vacuum interrupter of band clasp fairlead | |
| CN204289247U (en) | A kind of vacuum interrupter contact |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing Leaguesun Electronics Co., Ltd. Document name: Notification of Passing Examination on Formalities |
|
| DD01 | Delivery of document by public notice |
Addressee: Beijing Leaguesun Electronics Co., Ltd. Document name: Notification of Patent Invention Entering into Substantive Examination Stage |
|
| DD01 | Delivery of document by public notice |
Addressee: Beijing Leaguesun Electronics Co., Ltd. Document name: Notification that Application Deemed not to be Proposed |
|
| CB02 | Change of applicant information |
Address after: 101102, Beijing, Zhongguancun science and Technology Park, Tongzhou Park, Jinqiao technology industry base, 15 South four street, 18H, Tongzhou District Applicant after: BEIJING LEAGUESUN ELECTRONIC CO., LTD. Address before: 101102, Beijing, Zhongguancun science and Technology Park, Tongzhou Park, Jinqiao technology industry base, 15 South four street, 18H, Tongzhou District Applicant before: Beijing Leaguesun Electronics Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| DD01 | Delivery of document by public notice |
Addressee: BEIJING LEAGUESUN ELECTRONIC CO., LTD. Document name: Notification of Passing Examination on Formalities |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhang Jie Document name: Notification of Passing Examination on Formalities |
|
| CB03 | Change of inventor or designer information |
Inventor after: Yu Wanbao Inventor after: He Xianghui Inventor after: Mao Guozhen Inventor after: Liu Chen Inventor before: Sun Xiaofeng |
|
| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171020 Address after: Civil aerospace industrial base and National Road 710000 Shaanxi aerospace aviation city in Xi'an province is industrial park 106 open road 07, room 08 Building 5 layer Applicant after: Shaanxi fly Electronic Technology Co., Ltd. Address before: 101102, Beijing, Zhongguancun science and Technology Park, Tongzhou Park, Jinqiao technology industry base, 15 South four street, 18H, Tongzhou District Applicant before: BEIJING LEAGUESUN ELECTRONICS CO., LTD. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |