CN206563792U - A kind of folded waveguide travelling-wave tubes radio frequency system measurement apparatus - Google Patents
A kind of folded waveguide travelling-wave tubes radio frequency system measurement apparatus Download PDFInfo
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- CN206563792U CN206563792U CN201720299728.8U CN201720299728U CN206563792U CN 206563792 U CN206563792 U CN 206563792U CN 201720299728 U CN201720299728 U CN 201720299728U CN 206563792 U CN206563792 U CN 206563792U
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Abstract
The utility model provides a kind of folded waveguide travelling-wave tubes radio frequency system measurement apparatus, delivery of energy window and folded waveguide slow-wave structure are fixed using the first clamping fixture, the second clamping fixture, Holding seat and flange fixture for the program, it is easy to the connection and dismounting of delivery of energy window and folded waveguide slow-wave structure, it can be easy to the dismounting of delivery of energy window and folded waveguide slow-wave structure while measuring accuracy is ensured, welding means need not be used, it is to avoid the situation for occurring causing complete equipment to be scrapped because a certain part is unqualified occurs.
Description
Technical field
The utility model relates to electrovacuum THz devices field and Terahertz fields of measurement, especially a kind of folding
Folded waveguide travelling-wave tubes radio frequency system measurement apparatus.
Background technology
Travelling-wave tubes has been widely used in as a kind of broadband, high-power, high-gain electrovacuum microwave amplifier
The fields such as electronic countermeasure, radar system and satellite communication.Folded waveguide structure is that one kind is widely used in electrovacuum microwave device
The slow-wave structure of part, it has the advantages that big power capacity, dispersion flattene, coupled impedance are big.After into Terahertz frequency range by
Effect is spent together in size, the characteristic size of slow-wave structure reduces therewith, the processing to slow-wave structure has commonly encountered larger be stranded
Difficulty, because folded waveguide structure can be well compatible with MEMS technology so that folded waveguide is applied to Terahertz as slow-wave structure
It is with the obvious advantage during the electron tube of frequency range, generally believe at present folded waveguide travelling-wave tubes be most potential electrovacuum too
One of hertz source, and as key device in Terahertz high-resolution radar, high-speed data communication and sexual intercourse
The fields such as detection show the prospect of being widely applied.
Into after Terahertz frequency range, processing situation and welding procedure can have a strong impact on the globality of folded waveguide travelling-wave tubes
Energy.For folded waveguide slow-wave structure, because the roughness and THz wave of waveguide finished surface are in waveguide metal material
In skin depth be substantially at same magnitude, so the transmission loss of THz wave in the waveguide can no longer have been ignored not
Meter, it can produce large effect to the output characteristics of folded waveguide travelling-wave tubes.For delivery of energy window, its reflection characteristic can shadow
The job stability of folded waveguide travelling-wave tubes is rung, if the reflection of delivery of energy window is larger to be likely to result in self-oscillatory generation, is made
The amplification of signal can not be normally carried out by obtaining device.
Folded waveguide slow-wave structure and delivery of energy window assembled after component referred to as radio frequency system, in order to ensure to develop folding
The homogeneous tube performance of folded waveguide travelling-wave tubes to radio frequency system, it is necessary to screen, and preferentially putting into follow-up homogeneous tube sealing-in work ought
In.Common practice is that folded waveguide structure is assembled with delivery of energy window and cold-performance test is carried out after welding and is carried out
Screening, and if performance is unqualified, whole radio frequency system component can all be scrapped, the loss caused is larger.In order to by folded waveguide
Slow-wave structure carries out any pairing test with delivery of energy window and screened, and enters again after the performance of whole radio frequency system component is all qualified
Row welding, improves the yields of welding.This is accomplished by a kind of test suitable for Terahertz folded waveguide travelling-wave tubes radio frequency system
Method and matched a set of test device.
Utility model content
The purpose of this utility model, aiming at the deficiency present in prior art, and provides a kind of folded waveguide traveling wave
Pipe radio frequency system measurement apparatus, the program can solve the problem that cold to radio frequency system in Terahertz folded waveguide travelling-wave tubes development process
The accurate measurement problem of state property energy, improves the yields of welding, reduces the waste to parts, completes to folded waveguide slow wave knot
The performance screening of structure and delivery of energy window.
This programme is achieved by the following technical measures：
A kind of folded waveguide travelling-wave tubes radio frequency system measurement apparatus, include the first clamping fixture, the second clamping fixture,
Holding seat and flange fixture；Slow-wave structure locating slot is provided with the clamping face of first clamping fixture；Second clamping fixture
Clamping face on be provided with slow-wave structure locating slot；Folded waveguide slow-wave structure is provided with slow-wave structure locating slot；First folder
The one end for holding fixture is provided with square mating groove on the right flank of clamping face；The other end of first clamping fixture is located at folder
Hold face left surface on be provided with square mating groove；It is correspondingly arranged on position and sets with the first clamping fixture on second clamping fixture
It is equipped with square mating groove；The fixation of fitting relative with the clamping face of the second clamping fixture of first clamping fixture；Holding seat is buckled in
In square mating groove；Flange fixture is fixed on Holding seat.
It is used as the preferred of this programme：The two ends of first clamping fixture, which are located on clamping face, is provided with fixture locating cone；Second
Fixture positioning hole is provided with clamping fixture；Fixture positioning hole is corresponding with the position of fixture locating cone.
It is used as the preferred of this programme：Holding seat is U-shaped square frame body；Flange is provided with two end faces of Holding seat to determine
Position hole；The flange locating piece matched with flange positioning hole is provided with flange fixture；Screw hole is provided with flange locating piece；
The screwed hole matched with screw hole is provided with flange positioning hole.
It is used as the preferred of this programme：The screwed hole of clamp body is provided through on the clamping face of first clamping fixture；Second
The screw hole of clamp body is provided through on clamping fixture；The location matches of screw hole and screwed hole.
It is used as the preferred of this programme：The delivery of energy window positioning connected with slow-wave structure locating slot is provided with first clamping fixture
Hole；The position of delivery of energy window positioning hole is matched with the linkage section of folded waveguide slow-wave structure；Delivery of energy window positioning hole opening direction direction
Flange fixture.
A kind of folded waveguide travelling-wave tubes radio frequency system measuring method, includes following steps：
A, folded waveguide slow-wave structure is put into the slow wave holding tank of the first clamping fixture, then by the second clamping fixture
Laminating relative with the clamping face of the first clamping fixture, makes locating cone pass through positioning hole, then inserts the second holing clip using screw
In the screw hole of tool, tightening screw is locked by the first clamping fixture and the second clamping fixture, and composition slow wave holing clip is specific；
B, by the connection end of delivery of energy window pass through the specific delivery of energy window positioning hole of slow wave holing clip and folded waveguide slow-wave structure
Connection；
C, will Holding seat insertion slow wave clamping fixture square mating groove in be brought into close contact, delivery of energy exterior window trim is then entered into method
In blue fixture, then by the flange positioning hole of the flange locating piece insertion Holding seat of flange fixture, and use screw locked
Flange fixture, delivery of energy window and Holding seat；
After d, two groups of delivery of energy windows of installation, by the flange end of two groups of delivery of energy windows respectively with vector network analyzer first
Test port and the second test port are attached, using vector network analyzer to S11、S22And S21Parameter is tested,
Obtain S11、S22And S21The test result of parameter；Wherein, S11When connecing matched load for the second test port, the first test port
Voltage reflection coefficient；S22When connecing matched load for the first test port, the voltage reflection coefficient of the second test port；S21For
When second test port connects matched load, the voltage transmission coefficient of the first test port to the second test port；
E, to S11、S22And S21The test result of parameter carries out data processing, obtains VSWR-1, VSWR-2 and Loss
Three groups of data results, wherein：
In formula, VSWR-1 is the reflection characteristic for the delivery of energy window being connected with the first test port, and VSWR-2 is to be surveyed with second
The reflection characteristic for the delivery of energy window that examination port is connected, Loss is the transmission loss characteristic of folded waveguide slow-wave structure；
F, foundation tri- groups of data results of VSWR-1, VSWR-1 and Loss are to 2 delivery of energy windows and folded waveguide slow wave knot
The performance of structure is judged：When data VSWR-1 meets parameter request, it is believed that the delivery of energy window being connected with the first test port
For certified products；When data VSWR-2 meets parameter request, it is believed that the delivery of energy window being connected with the second test port is certified products；
When data Loss meets parameter request, it is believed that folded waveguide slow-wave structure is certified products；
G, when judging two delivery of energy windows and folded waveguide slow-wave structure all for certified products, all screws are screwed out, torn open
Test fixture is solved, two delivery of energy windows and folded waveguide slow-wave structure are taken out respectively.
It is used as the preferred of this programme：If data Loss is unsatisfactory for parameter request, then it is assumed that folded waveguide slow-wave structure is
Processing is scrapped in defective work, progress；If data VSWR-1 is unsatisfactory for parameter request, taking-up is connected with the first test port
Delivery of energy window data are judged again by repeat step b, c, d, e, f；If data VSWR-2 is unsatisfactory for parameter request,
The delivery of energy window being connected with the second test port is then taken out by repeat step b, c, d, e, f, data are judged again.
It is used as the preferred of this programme：If carried out after repeatedly testing, data VSWR-1 is still unsatisfactory for parameter request, then it is assumed that
The delivery of energy window being connected with the first test port is defective work, and processing is scrapped in progress.
It is used as the preferred of this programme：If carried out after repeatedly testing, data VSWR-2 is still unsatisfactory for parameter request, then it is assumed that
The delivery of energy window being connected with the second test port is defective work, and processing is scrapped in progress.
The beneficial effect of this programme can be learnt according to the narration to such scheme, due to being clamped in this scenario using first
Fixture, the second clamping fixture, Holding seat and flange fixture are locked to delivery of energy window and folded waveguide slow-wave structure,
It is convenient for test job；Meanwhile, also allow for being dismounted delivery of energy window and folded waveguide slow-wave structure, it is to avoid occur due to certain
The unqualified situation for causing whole radio frequency system component to be scrapped of one part occurs.
As can be seen here, the utility model compared with prior art, with substantive distinguishing features and progress, its beneficial effect implemented
Fruit is also obvious.
Brief description of the drawings
Fig. 1 is assembling structure schematic diagram of the present utility model.
Fig. 2 is the structural representation of the first clamping fixture and the second clamping fixture.
Fig. 3 is the assembling structure schematic diagram of the first clamping fixture and the second clamping fixture.
Fig. 4 is the part schematic diagram of folded waveguide slow-wave structure.
Fig. 5 is the part schematic diagram of delivery of energy window.
Fig. 6 is the structural representation of Holding seat.
Fig. 7 is the structural representation of flange fixture.
In figure, 1 is the first clamping fixture, and 2 be the second clamping fixture, and 3 be delivery of energy window, and 4 be flange fixture, and 5 be clamping
Base, 6 be screw, and 7 be folded waveguide structure, and 8 be slow-wave structure locating slot, and 9 be locating cone, and 10 be positioning hole, and 11 be screw thread
Hole, 12 be screw hole, and 13 be screw, and 14 be delivery of energy window positioning hole, and 15 be square mating groove, and 17 be folded waveguide structure interface,
18 be delivery of energy window flange end, and 19 be delivery of energy window connection end, and 20 be aligning receptacle, and 21 be flange positioning hole, and 23 be flange locating piece,
24 be screw hole.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
Any feature disclosed in this specification (including any accessory claim, summary and accompanying drawing), except non-specifically is chatted
State, can alternative features equivalent by other or with similar purpose replaced.I.e., unless specifically stated otherwise, each feature
It is an example in a series of equivalent or similar characteristics.
As illustrated, this programme is：
A kind of folded waveguide travelling-wave tubes radio frequency system measurement apparatus, include the first clamping fixture, the second clamping fixture,
Holding seat and flange fixture；Slow-wave structure locating slot is provided with the clamping face of first clamping fixture；Second clamping fixture
Clamping face on be provided with slow-wave structure locating slot；Folded waveguide slow-wave structure is provided with slow-wave structure locating slot；First folder
The one end for holding fixture is provided with square mating groove on the right flank of clamping face；The other end of first clamping fixture is located at folder
Hold face left surface on be provided with square mating groove；It is correspondingly arranged on position and sets with the first clamping fixture on second clamping fixture
It is equipped with square mating groove；The fixation of fitting relative with the clamping face of the second clamping fixture of first clamping fixture；Holding seat is buckled in
In square mating groove；Flange fixture is fixed on Holding seat.
The two ends of first clamping fixture, which are located on clamping face, is provided with fixture locating cone；Folder is provided with second clamping fixture
Has positioning hole；Fixture positioning hole is corresponding with the position of fixture locating cone.
Holding seat is U-shaped square frame body；Flange positioning hole is provided with two end faces of Holding seat；On flange fixture
It is provided with the flange locating piece matched with flange positioning hole；Screw hole is provided with flange locating piece；Set in flange positioning hole
There is the screwed hole matched with screw hole.
The screwed hole of clamp body is provided through on the clamping face of first clamping fixture；It is provided with and passes through on second clamping fixture
Wear the screw hole of clamp body；The location matches of screw hole and screwed hole.
The delivery of energy window positioning hole connected with slow-wave structure locating slot is provided with first clamping fixture；Delivery of energy window positioning hole
Position is matched with the linkage section of folded waveguide slow-wave structure；Delivery of energy window positioning hole opening direction is towards flange fixture.
A kind of folded waveguide travelling-wave tubes radio frequency system measuring method, includes following steps：
A, folded waveguide slow-wave structure is put into the slow wave holding tank of the first clamping fixture, then by the second clamping fixture
Laminating relative with the clamping face of the first clamping fixture, makes locating cone pass through positioning hole, then inserts the second holing clip using screw
In the screw hole of tool, tightening screw is locked by the first clamping fixture and the second clamping fixture, and composition slow wave holing clip is specific；
B, by the connection end of delivery of energy window pass through the specific delivery of energy window positioning hole of slow wave holing clip and folded waveguide slow-wave structure
Connection；
C, will Holding seat insertion slow wave clamping fixture square mating groove in be brought into close contact, delivery of energy exterior window trim is then entered into method
In blue fixture, then by the flange positioning hole of the flange locating piece insertion Holding seat of flange fixture, and use screw locked
Flange fixture, delivery of energy window and Holding seat；
After d, two groups of delivery of energy windows of installation, by the flange end of two groups of delivery of energy windows respectively with vector network analyzer first
Test port and the second test port are attached, using vector network analyzer to S11、S22And S21Parameter is tested,
Obtain S11、S22And S21The test result of parameter；Wherein, S11When connecing matched load for the second test port, the first test port
Voltage reflection coefficient；S22When connecing matched load for the first test port, the voltage reflection coefficient of the second test port；S21For
When second test port connects matched load, the voltage transmission coefficient of the first test port to the second test port；
E, to S11、S22And S21The test result of parameter carries out data processing, obtains VSWR-1, VSWR-2 and Loss
Three groups of data results, wherein：
In formula, VSWR-1 is the reflection characteristic for the delivery of energy window being connected with the first test port, and VSWR-2 is to be surveyed with second
The reflection characteristic for the delivery of energy window that examination port is connected, Loss is the transmission loss characteristic of folded waveguide slow-wave structure；
F, foundation tri- groups of data results of VSWR-1, VSWR-1 and Loss are to 2 delivery of energy windows and folded waveguide slow wave knot
The performance of structure is judged：When data VSWR-1 meets parameter request, it is believed that the delivery of energy window being connected with the first test port
For certified products；When data VSWR-2 meets parameter request, it is believed that the delivery of energy window being connected with the second test port is certified products；
When data Loss meets parameter request, it is believed that folded waveguide slow-wave structure is certified products；
G, when judging two delivery of energy windows and folded waveguide slow-wave structure all for certified products, all screws are screwed out, torn open
Test fixture is solved, two delivery of energy windows and folded waveguide slow-wave structure are taken out respectively.
If data Loss is unsatisfactory for parameter request, then it is assumed that folded waveguide slow-wave structure is defective work, is scrapped
Processing；If data VSWR-1 is unsatisfactory for parameter request, the delivery of energy window being connected with the first test port is taken out by repeating
Step b, c, d, e, f are judged data again；If data VSWR-2 is unsatisfactory for parameter request, take out and the second test
The delivery of energy window that port is connected is judged data again by repeat step b, c, d, e, f.
If carried out after repeatedly testing, data VSWR-1 is still unsatisfactory for parameter request, then it is assumed that with the first test port phase
The delivery of energy window of connection is defective work, and processing is scrapped in progress.
If carried out after repeatedly testing, data VSWR-2 is still unsatisfactory for parameter request, then it is assumed that with the second test port phase
The delivery of energy window of connection is defective work, and processing is scrapped in progress.
In this programme, folded waveguide slow-wave structure is fixed using the first clamping fixture and the second clamping fixture,
The position of folded waveguide slow-wave structure and angle can be positioned in assembling and test process, it is ensured that the precision of positioning.Pass through
Using the fit system of locating cone and positioning hole and using screw by the first clamping fixture and the locked knot of the second clamping fixture
Structure, ensure that the two secure fit constitutes slow wave clamping fixture, also ensure that assembly precision.Set on slow wave clamping fixture
Delivery of energy window positioning hole delivery of energy window can be played a supporting role, while can also be positioned to delivery of energy window, make delivery of energy window and folding
Waveguide slow-wave structure is accurately connected.Delivery of energy window is fixed using Holding seat and flange fixture, delivery of energy window is ensure that
The non-lodging when testing installation, prevents occurring the situation hair that delivery of energy window is separated with folded waveguide slow-wave structure in test process
It is raw.
Complete equipment ensure that the connection precision of delivery of energy window and folded waveguide slow-wave structure, ensure the same of measuring accuracy
When, the dismounting of delivery of energy window and folded waveguide slow-wave structure can be easy to, without using welding means, it is to avoid occur because of a certain part
Situation that is unqualified and causing complete equipment to be scrapped occurs.
The utility model is not limited to foregoing embodiment.The utility model expands to any in this specification
The new feature of middle disclosure or any new combination, and disclose any new method or process the step of or any new group
Close.
Claims (5)
1. a kind of folded waveguide travelling-wave tubes radio frequency system measurement apparatus, it is characterized in that：Include the first clamping fixture, the second folder
Hold fixture, Holding seat and flange fixture；Slow-wave structure locating slot is provided with the clamping face of first clamping fixture；Institute
Slow-wave structure locating slot is provided with the clamping face for stating the second clamping fixture；Folding ripple is provided with the slow-wave structure locating slot
Lead slow-wave structure；One end of first clamping fixture, which is located on the right flank of clamping face, is provided with square mating groove；Described
The other end of one clamping fixture, which is located on the left surface of clamping face, is provided with square mating groove；With on second clamping fixture
One clamping fixture, which is correspondingly arranged on position, is provided with square mating groove；The clamping of first clamping fixture and the second clamping fixture
The relative fixation of fitting in face；The Holding seat is buckled in square mating groove；The flange fixture is fixed on Holding seat.
2. a kind of folded waveguide travelling-wave tubes radio frequency system measurement apparatus according to claim 1, it is characterized in that：Described
The two ends of one clamping fixture, which are located on clamping face, is provided with fixture locating cone；Fixture positioning is provided with second clamping fixture
Hole；The fixture positioning hole is corresponding with the position of fixture locating cone.
3. a kind of folded waveguide travelling-wave tubes radio frequency system measurement apparatus according to claim 1, it is characterized in that：The folder
Base is held for U-shaped square frame body；Flange positioning hole is provided with two end faces of the Holding seat；Set on the flange fixture
It is equipped with the flange locating piece matched with flange positioning hole；Screw hole is provided with the flange locating piece；The flange positioning hole
In be provided with the screwed hole matched with screw hole.
4. a kind of folded waveguide travelling-wave tubes radio frequency system measurement apparatus according to claim 1, it is characterized in that：Described
The screwed hole of clamp body is provided through on the clamping face of one clamping fixture；Fixture is provided through on second clamping fixture
The screw hole of body；The location matches of the screw hole and screwed hole.
5. a kind of folded waveguide travelling-wave tubes radio frequency system measurement apparatus according to claim 1, it is characterized in that：Described
The delivery of energy window positioning hole connected with slow-wave structure locating slot is provided with one clamping fixture；The position of the delivery of energy window positioning hole with
The linkage section matching of folded waveguide slow-wave structure；The delivery of energy window positioning hole opening direction is towards flange fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720299728.8U CN206563792U (en) | 2017-03-24 | 2017-03-24 | A kind of folded waveguide travelling-wave tubes radio frequency system measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720299728.8U CN206563792U (en) | 2017-03-24 | 2017-03-24 | A kind of folded waveguide travelling-wave tubes radio frequency system measurement apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206563792U true CN206563792U (en) | 2017-10-17 |
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ID=60033047
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720299728.8U Active CN206563792U (en) | 2017-03-24 | 2017-03-24 | A kind of folded waveguide travelling-wave tubes radio frequency system measurement apparatus |
Country Status (1)
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| CN (1) | CN206563792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680684A (en) * | 2017-03-24 | 2017-05-17 | 中国工程物理研究院应用电子学研究所 | Measurement device and measurement method for folded waveguide travelling wave tube high-frequency system |
-
2017
- 2017-03-24 CN CN201720299728.8U patent/CN206563792U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680684A (en) * | 2017-03-24 | 2017-05-17 | 中国工程物理研究院应用电子学研究所 | Measurement device and measurement method for folded waveguide travelling wave tube high-frequency system |
| CN106680684B (en) * | 2017-03-24 | 2023-06-02 | 中国工程物理研究院应用电子学研究所 | Measuring device and method for high-frequency system of folded waveguide traveling wave tube |
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