CN108736229A - A kind of maze-type structure for aerospace HIGH-POWERED MICROWAVES device isolation dielectric support - Google Patents
A kind of maze-type structure for aerospace HIGH-POWERED MICROWAVES device isolation dielectric support Download PDFInfo
- Publication number
- CN108736229A CN108736229A CN201810475235.4A CN201810475235A CN108736229A CN 108736229 A CN108736229 A CN 108736229A CN 201810475235 A CN201810475235 A CN 201810475235A CN 108736229 A CN108736229 A CN 108736229A
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- Prior art keywords
- support
- dielectric
- dielectric support
- conductor
- maze
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- 238000002955 isolation Methods 0.000 title claims abstract description 12
- 239000004020 conductor Substances 0.000 claims abstract description 80
- 238000013461 design Methods 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims description 15
- 230000013011 mating Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 7
- 230000008602 contraction Effects 0.000 abstract description 4
- 230000005684 electric field Effects 0.000 abstract description 3
- 239000003989 dielectric material Substances 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
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
- 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
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/10—Auxiliary devices for switching or interrupting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/32—Non-reciprocal transmission devices
- H01P1/36—Isolators
-
- 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
- H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
- H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
Landscapes
- Waveguides (AREA)
Abstract
The invention discloses a kind of maze-type structures for aerospace HIGH-POWERED MICROWAVES device isolation dielectric support, it is supported using two sections or three-stage dielectric, registration interface designs between dielectric support are at the structure type of boss and annular groove or boss and counterbore cooperation, assembly interference volume ranging from 0.05mm~0.1mm.The inventive structure, on the one hand play the role of supporting fixed center conductor, several annular grooves are cut between another aspect center conductor and external conductor, when transmitting HIGH-POWERED MICROWAVES signal, increase the length of the air gap, the electric field strength being equivalent between improving internal and external conductor reduces the probability of low pressure discharge；In aerospace vacuum environment, the free path for leading to the secondary emission electron of vacuum micro discharge phenomenon between center conductor and external conductor is hindered, improves the ability of the anti-vacuum micro discharge of device；The reasonable set of interference range ensures that device is not susceptible to detach and generate gap in process of expansion and contraction.
Description
Technical field
The present invention relates to a kind of maze-type structures for aerospace HIGH-POWERED MICROWAVES device isolation dielectric support.
Background technology
Aerospace HIGH-POWERED MICROWAVES device is (such as：Microwave switch, isolator, filter) it is usually in special use environment,
The device is in during ground simulation test, transmitting and in-orbit use in low pressure or vacuum environment, therefore, at this
Low pressure is easy to cause at the weak links such as the prevention at radio-frequency port of class microwave device and the junction of cavity internal/external signal link to put
Electricity or vacuum micro discharge, when design usually the gap of centering heart conductor and external conductor all using dielectric support (poly- four
Vinyl fluoride) filling mode.
A kind of filling mode is：
The dielectric supported design that center conductor is filled is into a single integrated structure, but the Standard is complicated, assembling process
It is middle that dielectric is supported into longitudinally slit half, after center conductor is put into dielectric support after position, then by dielectric
Support pressing.Incision site produces plane clearance, while in swapping process, and center conductor has displacement risk.
Another filling mode is：
Dielectric supported design by center conductor filling is the bi-body structure of plane at contact surface, is led using with inside and outside
The mode that body interference compresses is assembled, and solves center conductor and there is displacement risk.But two bodies that contact surface is plane gather
Tetrafluoroethene dielectric, which is supported in process of expansion and contraction, easily to be detached, and plane clearance is generated, and there is generation low pressure to put
The risk of electricity and vacuum micro discharge phenomenon.
As it can be seen that in the development of aerospace HIGH-POWERED MICROWAVES device, the prior art can form plane clearance, in identical volume
In structure, it is easy to generate the electric discharge phenomena such as low pressure discharge and vacuum micro discharge by plane clearance, device is caused to burn；Simultaneously
It is supported using single dielectric, assembly is complicated, and center conductor has displacement risk.
For this purpose, need at present it is a kind of can meet in aerospace environment, have the product of high reliability.
Invention content
To solve the above-mentioned problems in the prior art, the present invention provides a kind of exhausted for aerospace HIGH-POWERED MICROWAVES device
The maze-type structure of edge dielectric support, to the center conductor of the aerospace HIGH-POWERED MICROWAVES device such as microwave switch, isolator, filter
It supports to form maze-type structure using multiple dielectrics, improves the anti-low pressure discharge of aerospace HIGH-POWERED MICROWAVES device and vacuum
The ability of micro discharge.Specific technical solution is as follows：
The present invention provides a kind of maze-type structure for aerospace HIGH-POWERED MICROWAVES device isolation dielectric support, it includes head
Hold dielectric support, the support of tail end dielectric, the two using end face mating connection, be set to center conductor and outer conductor it
Between；The structure that the registration interface designs of the head end dielectric support and the support of tail end dielectric are engaged at boss with annular groove
Form, center conductor are located at the centre of the support of head end dielectric and the support of tail end dielectric, and outer conductor is located at head end
Dielectric supports and the periphery of tail end dielectric support.
The mating connection structure, on the one hand play the role of support fixed center conductor, another aspect center conductor with outside
It is cut into several annular grooves between conductor, avoids the formation of plane clearance.When transmitting HIGH-POWERED MICROWAVES signal, in identical size
Under, the length of the air gap is increased, the electric field strength being equivalent between improving internal and external conductor reduces the machine of low pressure discharge
Rate.In aerospace vacuum environment, the Secondary Emission electricity for leading to vacuum micro discharge phenomenon between center conductor and external conductor is hindered
The free path of son, improves the ability of the anti-vacuum micro discharge of aerospace HIGH-POWERED MICROWAVES device.
Particularly, the assembly interference volume ranging from 0.05mm that the support of head end dielectric is supported with tail end dielectric~
0.1mm, aerospace microwave device due to the use of bad environments, part device is born out of my cabin the temperature difference is big, using this assembly interference
Amount is not susceptible to detach and generate gap in process of expansion and contraction.
The present invention also provides a kind of maze-type structures for aerospace HIGH-POWERED MICROWAVES device isolation dielectric support, it includes
With the support of shaft end dielectric, middle insulated medium support, cavity interior insulation dielectric support, three is connected using end face,
It is set between coaxial outer conductor and coaxial center conductors, between cavity outer conductor and microstrip line center conductor；The same shaft end
Dielectric supports and the mating surface of middle insulated medium support and middle insulated medium support and cavity interior insulation dielectric support
The structure type that is engaged with counterbore at boss of registration interface designs, coaxial center conductors be located at the support of shaft end dielectric and in
Between dielectric support centre, microstrip line center conductor be located at middle insulated medium support and cavity interior insulation medium branch
The centre of support, coaxial outer conductor be located at shaft end dielectric support periphery, cavity be located at middle insulated medium support with
The periphery of tail end dielectric support.
On the one hand the mating connection structure plays the role of supporting fixing coaxial center conductor and microstrip line center conductor,
It is cut between another aspect coaxial center conductors and coaxial external conductor, between microstrip line center conductor and cavity outer conductor
Several step grooves, avoid the formation of plane clearance.When transmitting HIGH-POWERED MICROWAVES signal, under identical size, air is increased
The length in gap, the electric field strength being equivalent between improving internal and external conductor reduce the probability of low pressure discharge.In aerospace vacuum
In environment, the free path for leading to the secondary emission electron of vacuum micro discharge phenomenon between center conductor and external conductor is hindered,
Improve the ability of the anti-vacuum micro discharge of aerospace HIGH-POWERED MICROWAVES device.
Particularly, with shaft end dielectric support, middle insulated medium support, cavity interior insulation dielectric support mating surface it
Between assembly interference volume ranging from 0.05mm~0.1mm, aerospace microwave device due to the use of bad environments, part device out of my cabin
The temperature difference born is big, using this assembly interference volume, separation is not susceptible in process of expansion and contraction and generates gap.
The beneficial effects of the invention are as follows：Maze-type structure is supported using more dielectrics, avoids the formation of plane clearance, is reduced
The probability of low pressure discharge, improves the ability of the anti-vacuum micro discharge of aerospace HIGH-POWERED MICROWAVES device；Device architecture is set more to close
Reason, assembling process is simpler, and the critical examinations point mass such as assembling, solder joint of center conductor is more prone to check control, assembly effect
Rate is improved.
Description of the drawings
Fig. 1 is the structural schematic diagram of embodiment one；
Fig. 2 is the head end dielectric support sectional view in Fig. 1；
Fig. 3 is the tail end dielectric support sectional view in Fig. 1；
Fig. 4 is the structural schematic diagram of embodiment two；
Fig. 5 is the same shaft end dielectric support sectional view in Fig. 4；
Fig. 6 is the middle insulated medium support sectional view in Fig. 4；
Fig. 7 is the cavity interior insulation dielectric support sectional view in Fig. 4.
In attached drawing：1- outer conductors, 2- center conductors, the support of 3- head end dielectrics, the support of 4- tail end dielectrics, 5- are same
Axis outer conductor, 6- coaxial center conductors, 7- are supported with shaft end dielectric, 8- cavity outer conductors, the support of 9- middle insulated mediums,
10- cavity interior insulation dielectric supports, 11- microstrip line center conductors.
Specific implementation mode
With reference to the accompanying drawings of the specification and specific embodiment, invention is further described in detail.
Embodiment one
Referring to Fig. 1：The present invention provides a kind of labyrinth type knots for aerospace HIGH-POWERED MICROWAVES device isolation dielectric support
Structure, it includes head end dielectric support 3, tail end dielectric support 4, and the two is connected using end face, is set to center
Between conductor 2 and outer conductor 1, the registration interface designs of the head end dielectric support 3 and tail end dielectric support 4 are at boss
The structure type being engaged with annular groove, center conductor 2 are located in head end dielectric support 3 and tail end dielectric support 4
Center portion position, outer conductor 1 are located at the periphery of head end dielectric support 3, tail end dielectric support 4.
As shown in Figure 1, Figure 2, Figure 3 shows, when assembly, the structure supported using two sections of dielectrics, by head end dielectric branch
Support 3 is put into 1 corresponding fixed position of outer conductor, places center conductor 2 after head end dielectric support 3, then places tail
Hold dielectric support 4；The contact face position of two sections of dielectrics support is equipped with the cooperation of annular convex platform and annular groove, cooperation
Interference volume compresses two sections of dielectrics supports when assembly between 0.05mm~0.1mm by tooling, inside venting annular groove
Residual gas forms the dielectric support maze-type structure that annular convex platform is engaged with annular groove.
Embodiment one is suitable for the aerospace HIGH-POWERED MICROWAVES device with coaxial radio-frequency port.
Embodiment two
Referring to Fig. 4：The present invention provides a kind of labyrinth type knots for aerospace HIGH-POWERED MICROWAVES device isolation dielectric support
Structure, it includes same shaft end dielectric support 7, middle insulated medium support 9, cavity interior insulation dielectric support 10, and three uses
End face is connected, and is set between coaxial outer conductor 5 and coaxial center conductors 6, cavity outer conductor 8 and microstrip line center conductor
Between 11；Mating surface and middle insulated medium support 9 of the same shaft end dielectric support 7 with middle insulated medium support 9
The structure type being engaged with counterbore at boss with the registration interface designs of cavity interior insulation dielectric support 10, coaxial center conductors 6
In the centre of same shaft end dielectric support 7 and middle insulated medium support 9, microstrip line center conductor 11 is located at intermediate exhausted
The centre of edge dielectric support 9 and cavity interior insulation dielectric support 10, coaxial outer conductor 5 is located to be supported with shaft end dielectric
7 periphery, cavity outer conductor 8 are located at the periphery of middle insulated medium support 9 and cavity interior insulation dielectric support 10.
As shown in Fig. 4, Fig. 5, Fig. 6, Fig. 7, when assembly, the structure supported using three sections of dielectrics will be insulated with shaft end
Dielectric support 7, which is fixed, is packed into coaxial outer conductor 5, and then coaxial center conductors 6 are passed through with shaft end dielectric support 7 and compressed
In place；Coaxial center conductors 6 and microstrip line center conductor 11 are overlapped；It is successively that 9 pairs of middle insulated medium support is coaxial
End dielectric support 7 carries out package compression, cavity interior insulation dielectric support 10 carries out package pressure to middle insulated medium support 9
Tightly；Three sections of dielectric support contact face positions are equipped with the structure type that boss is engaged with counterbore, and matching allowance is
Between 0.05mm~0.1mm, finally interference is supported to compress three sections of dielectrics by coaxial outer conductor 5 and cavity outer conductor 8,
Residual gas at venting step forms the compound dielectric of stair-step and supports maze-type structure.
Embodiment two is suitable for the big work(of aerospace with inside cavity microstrip line and external radio frequency coaxial port exchanging structure
Rate microwave device.
It is all according to made by the content of present invention some variation and modification, be all the claims in the present invention range claimed
Covered.
Claims (4)
1. a kind of maze-type structure for aerospace HIGH-POWERED MICROWAVES device isolation dielectric support, it is characterised in that：It includes head
Hold dielectric support, the support of tail end dielectric, the two using end face mating connection, be set to center conductor and outer conductor it
Between；The structure that the registration interface designs of the head end dielectric support and the support of tail end dielectric are engaged at boss with annular groove
Form, center conductor are located at the centre of the support of head end dielectric and the support of tail end dielectric, and outer conductor is located at head end
Dielectric supports and the periphery of tail end dielectric support.
2. a kind of maze-type structure for aerospace HIGH-POWERED MICROWAVES device isolation dielectric support according to claim 1,
It is characterized in that：Assembly interference volume between the head end dielectric support and tail end dielectric support mating surface is ranging from
0.05mm~0.1mm.
3. a kind of maze-type structure for aerospace HIGH-POWERED MICROWAVES device isolation dielectric support, it is characterised in that：It includes same
Shaft end dielectric support, middle insulated medium support, cavity interior insulation dielectric support, three are connected using end face, if
It is placed between coaxial outer conductor and coaxial center conductors, between cavity outer conductor and microstrip line center conductor；The same shaft end is exhausted
Edge dielectric support and the mating surface of middle insulated medium support and middle insulated medium support and cavity interior insulation dielectric support
The structure type that registration interface designs are engaged at boss with counterbore, coaxial center conductors are located at the support of shaft end dielectric and centre
The centre of dielectric support, microstrip line center conductor are located at middle insulated medium support and cavity interior insulation dielectric support
Centre, coaxial outer conductor is located at supports periphery with shaft end dielectric, and cavity outer conductor is located at middle insulated medium branch
The periphery of support and the support of tail end dielectric.
4. a kind of maze-type structure for aerospace HIGH-POWERED MICROWAVES device isolation dielectric support according to claim 3,
It is characterized in that：The same shaft end dielectric support, middle insulated medium support and cavity interior insulation dielectric support mating surface
Between assembly interference volume ranging from 0.05mm~0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810475235.4A CN108736229A (en) | 2018-05-17 | 2018-05-17 | A kind of maze-type structure for aerospace HIGH-POWERED MICROWAVES device isolation dielectric support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810475235.4A CN108736229A (en) | 2018-05-17 | 2018-05-17 | A kind of maze-type structure for aerospace HIGH-POWERED MICROWAVES device isolation dielectric support |
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| Publication Number | Publication Date |
|---|---|
| CN108736229A true CN108736229A (en) | 2018-11-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810475235.4A Pending CN108736229A (en) | 2018-05-17 | 2018-05-17 | A kind of maze-type structure for aerospace HIGH-POWERED MICROWAVES device isolation dielectric support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114361890A (en) * | 2021-12-09 | 2022-04-15 | 安徽迈凯电子科技有限公司 | Radio frequency coaxial connector with mixed medium supporting structure |
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| CN114361890B (en) * | 2021-12-09 | 2024-09-13 | 安徽迈凯电子科技有限公司 | Radio frequency coaxial connector with mixed medium supporting structure |
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