CN109755692A - A kind of waveguide switch electromagnetic leakage inhibition device - Google Patents
A kind of waveguide switch electromagnetic leakage inhibition device Download PDFInfo
- Publication number
- CN109755692A CN109755692A CN201910025667.XA CN201910025667A CN109755692A CN 109755692 A CN109755692 A CN 109755692A CN 201910025667 A CN201910025667 A CN 201910025667A CN 109755692 A CN109755692 A CN 109755692A
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- China
- Prior art keywords
- waveguide switch
- stator
- rotor
- electromagnetic leakage
- waveguide
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Abstract
The invention proposes a kind of waveguide switch electromagnetic leakages to inhibit device, is applicable in high power even ultra high power microwave electromagnetic leakage and inhibits, relates generally to waveguide switch field.Under the premise of the present invention guarantees that the rotor of waveguide switch and stator gap are constant, by designing groove on stator or rotor, reduce electromagnetic leakage phenomenon caused by gap, reduce reflection, improve isolation, the transmission performance of waveguide switch is set to be greatly improved, so that waveguide switch be enable to apply in more areas.
Description
Technical field
The present invention relates to waveguide switch fields.
Background technique
Waveguide switch is exactly the electromechanical integration member for switching radiofrequency signal by certain mode, controlling radiofrequency signal on-off
Part.It is the crucial carrier for realizing the switching of high-frequency high-power microwave energy.Waveguide switch is a kind of using mechanical isolation and passing through
The microwave switch of channel switching is realized in rotor rotation.The switch have working frequency height, bandwidth, loss is small, power capacity is big
The features such as.Therefore, the related fieldss such as communication, navigation, remote measuring and controlling be can be widely applied to, world today's high-frequency electronic is had become and set
One of critical elements in standby.
With the development of modern radar technology, radar signal frequency band is more and more wider, and transmitter power is increasing, especially exists
In the shared radar system of dual-mode antenna, the leakage signal from transmitter is more serious.Therefore, during operation of receiver,
It needs that receiver front-end low noise amplifier is reinforced protecting using waveguide switch.In addition, in order to improve radar receiving sensitivity,
Antenna and receiver front end generally use the waveguide that insertion loss is low, power capacity is big and are attached.Therefore, filter with low insertion loss, it is high every
There is vital meaning to radar from degree, broadband, high-power, seriation waveguide switch.
It is in rotor side surface filled media material, the rotor of waveguide switch that traditional waveguide switch electromagnetic leakage, which inhibits device,
Same metal material is selected with stator, rotor is pressed into designed dimensioned particular groove.Dielectric material is fixed in groove
Portion.Dielectric material can also be fixed on stator interior simultaneously, reach and subtract using groove is designed between stator interior passway
The purpose of lesser trochanter volume.In order to guarantee the flexible rotating of waveguide switch, need that there are gaps between rotor and stator, but
There are problems when setting gap size.Gap is small, makes enough at close contact between the two, and isolation is preferable between port,
But waveguide switch limited in rotation；Gap is big, and isolation difference is unable to satisfy use between the port of waveguide switch.
Summary of the invention
The present invention provides a kind of waveguide switch electromagnetic leakage inhibition device.It is adopted on the basis of realizing lightweight, miniaturization
Measure is taken, effectively inhibits electromagnetic coupling between port to leak, to realize the requirement of waveguide switch high-isolation.
A kind of waveguide switch electromagnetic leakage proposed by the present invention inhibits device, including stator, rotor.The wherein fixed peace of rotor
Mounted in the inside of stator；N number of leading channel, the input/output end edge of rotor leading passway are symmetrical arranged on rotor and stator
Groove is designed on the inside of edge recessing or stator.The groove of stator may be designed to arc groove, hold it is symmetrical, to realize multiple ends
Isolation between mouthful.Leading channel is Rectangular Waveguide Structure, and the depth of groove is l,Its
Middle a is rectangular waveguide width edge length, and λ is passband intermediate frequency point incident wavelength.
Between slot, interference is not generated between slot and channel.
The advantages of the present invention over the prior art are that:
The present invention it is reliable can to improve rotation in the case where waveguide switch outer dimension, rotor and constant stator gap
Property, reduce reflection caused by gap, effectively inhibition electromagnetic leakage.Since rotor and stator are processed using same material, all
The lower coefficient of expansion of condition is identical under environment, reduces influence of the temperature deformation to gap, and then reduce crosstalk, enhances isolation.
The volume of waveguide switch can finally be reduced, realize waveguide switch lightweight, miniaturization.
Detailed description of the invention
Fig. 1 is waveguide switch media filler schematic diagram.
Fig. 2 is dielectric-filled waveguide switch rotor, stator structure figure.
Fig. 3 is waveguide switch stator upper groove schematic diagram.
Fig. 4 is waveguide switch stator upper groove side view.
Fig. 5 is that waveguide switch supratrochlear depression groove waveguides switch schematic diagram.
Fig. 6 is waveguide switch supratrochlear depression slot side view.
In figure 1 be filled media material, 2 be waveguide switch stator, 3 be waveguide switch rotor, 4 be stator circumference groove, 5
For the input port radial groove for being parallel to rotor.
Specific embodiment
The present invention is to devise a kind of waveguide the reason of causing microwave leakage by the gap between analysis rotor and stator
It switchs electromagnetic leakage and inhibits device.In the waveguide switch of multichannel, leakage mainly has to be turned along stator circumference direction channel and edge
Sub- axial passage.Meanwhile there are also the couple leaks in other channels, wherein gap is the maximum of electromagnetic leakage in the circumferential direction
Value, when design, need the expansion of compound material, the radial clearance after rotating eccentricity and the rotor installation of rotor.When gap is true
After fixed, in order to reduce crosstalk, inhibit the electromagnetic transmission in gap, need to increase measure to inhibit electromagnetic leakage.
The present invention provides a kind of waveguide switch electromagnetic leakages to inhibit device, is made of rotor and stator two parts.Referring to
Fig. 3.First by a part of completion of processing of waveguide switch stator case and reserved ring flange installation card slot.Leading channel part on shell
Divide individually processing, will contain on the inside of reeded rectangular surfaces insertion stator and pre-installs.Flange hole is passed through with waveguide core, after finishing is fixed
Fastening.Then it by stator one integral piece turnery processing to fixed dimension, is assembled with rotor.At this time rotor and stator gap still with Fig. 3
Intermediate gap is identical, referring to Fig. 5.Due to the presence in gap, microwave energy can be caused to couple, it, can be in leading channel by analysis
The groove of circumference type or the groove of annular are configured on the basis of broadside slot, and the upward downward electromagnetism of rotor subject is inhibited to let out respectively
Leakage prevents the electromagnetic field of leakage from evoking coupled wave, certain inhibiting effect is equally also played to axial leakage.
Waveguide switch rotor and stator the selection same material that the present invention refers to are inconsistent to gap to reduce temperature deformation
Influence, the effect of retention gap.Stator inner surface processing, improves the electric conductivity of material, reduces decaying.
Claims (5)
1. a kind of waveguide switch electromagnetic leakage inhibits device, it is characterised in that: including stator, rotor；Rotor is fixedly mounted on fixed
The inside of son；Symmetrically arranged N number of leading channel on rotor and stator, in the leading passway recessing of rotor or stator；
Wherein
The leading channel is Rectangular Waveguide Structure, and the depth of groove is l,Wherein a is
Rectangular waveguide width edge length, λ are passband intermediate frequency point incident wavelength.
2. a kind of waveguide switch electromagnetic leakage according to claim 1 inhibits device, it is characterised in that: the groove is being led
Row of channels mouth two sides are symmetrical, and groove port and leading passway are in same surface.
3. a kind of waveguide switch electromagnetic leakage according to claim 1 inhibits device, it is characterised in that: described device uses
Same material.
4. a kind of waveguide switch electromagnetic leakage according to claim 3 inhibits device, it is characterised in that: each on stator
Input port be arranged arc groove, arc length be greater than quarter-wave, arc groove vertex distance rectangular waveguide mouth center four/
One wavelength.
5. a kind of waveguide switch electromagnetic leakage according to claim 1 inhibits device, it is characterised in that: in each of stator
Leading passway configures choke structure, and chokes are carried out machining according to stator profile, to meet entire waveguide switch
Installation requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910025667.XA CN109755692A (en) | 2019-01-11 | 2019-01-11 | A kind of waveguide switch electromagnetic leakage inhibition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910025667.XA CN109755692A (en) | 2019-01-11 | 2019-01-11 | A kind of waveguide switch electromagnetic leakage inhibition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109755692A true CN109755692A (en) | 2019-05-14 |
Family
ID=66404699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910025667.XA Pending CN109755692A (en) | 2019-01-11 | 2019-01-11 | A kind of waveguide switch electromagnetic leakage inhibition device |
Country Status (1)
| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7193488B2 (en) * | 2002-07-11 | 2007-03-20 | Tesat-Spacecom Gmbh & Co. Kg | R switch |
| JP2010268122A (en) * | 2009-05-13 | 2010-11-25 | Mitsubishi Electric Corp | Connection structure of waveguide |
| CN105609900A (en) * | 2015-12-23 | 2016-05-25 | 中国航天时代电子公司 | Miniature multi-channel waveguide switch |
| CN106159383A (en) * | 2016-06-29 | 2016-11-23 | 中国电子科技集团公司第三十八研究所 | Guarantee cannot blue waveguide and the control method having flange waveguide high accuracy to be connected |
| CN106356592A (en) * | 2016-11-29 | 2017-01-25 | 中国电子科技集团公司第四十研究所 | Novel high isolation single-pole double-throw mechanical waveguide switch |
-
2019
- 2019-01-11 CN CN201910025667.XA patent/CN109755692A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7193488B2 (en) * | 2002-07-11 | 2007-03-20 | Tesat-Spacecom Gmbh & Co. Kg | R switch |
| JP2010268122A (en) * | 2009-05-13 | 2010-11-25 | Mitsubishi Electric Corp | Connection structure of waveguide |
| CN105609900A (en) * | 2015-12-23 | 2016-05-25 | 中国航天时代电子公司 | Miniature multi-channel waveguide switch |
| CN106159383A (en) * | 2016-06-29 | 2016-11-23 | 中国电子科技集团公司第三十八研究所 | Guarantee cannot blue waveguide and the control method having flange waveguide high accuracy to be connected |
| CN106356592A (en) * | 2016-11-29 | 2017-01-25 | 中国电子科技集团公司第四十研究所 | Novel high isolation single-pole double-throw mechanical waveguide switch |
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Application publication date: 20190514 |
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| WD01 | Invention patent application deemed withdrawn after publication |