CN203588964U - End feed type input energy transmission device for travelling-wave tube - Google Patents
End feed type input energy transmission device for travelling-wave tube Download PDFInfo
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- CN203588964U CN203588964U CN201320717478.7U CN201320717478U CN203588964U CN 203588964 U CN203588964 U CN 203588964U CN 201320717478 U CN201320717478 U CN 201320717478U CN 203588964 U CN203588964 U CN 203588964U
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Abstract
The utility model discloses an end feed type input energy transmission device for a travelling-wave tube. The device comprises a coaxial energy transmission head, a mode convertor of microwave energy and a movable adjusting screw (1) mounted on a waveguide, wherein the coaxial energy transmission head is fixed to an end face short circuit block (2) of the waveguide. The coaxial energy transmission head comprises an SMA energy transmission window (3); an outer conductor (4) of a coaxial line, which is mounted outside the SMA energy transmission window (3); an inner conductor (5) of the coaxial line, which is mounted inside the SMA energy transmission window (3), the mode converter of microwave energy comprises an L-shaped coaxial inner conductor (6) and a stepped impedance transformer (7) connected with the L-shaped coaxial inner conductor (6), and the inner conductor (5) of the coaxial line is inserted into the waveguide and is connected with the L-shaped coaxial inner conductor (6). The end feed type input energy transmission device is reasonable in structural design, particularly does not occupy two-dimensional space, can realize single-mode transmission, and is easy to realize matching of a slow wave line with the energy transmission device through the adjusting screw.
Description
Technical field
The utility model relates to a kind of delivery of energy device of travelling wave tube, is specifically related to the end feedback formula input delivery of energy device that a kind of travelling wave tube is used.
Background technology
The input delivery of energy device of travelling wave tube has three kinds of modes (Pill-Box Window, magnetic coupling are coaxially inputted delivery of energy device, electric coupling and coaxially inputted delivery of energy device) conventionally, and respectively has pluses and minuses.But for needs, lengthening input delivery of energy device length and reduce as far as possible in the situation of face area, there is following shortcoming in above-mentioned three kinds of input delivery of energy devices:
(1) the input delivery of energy device of Pill-Box Window and impedance transformer composition
The relative magnetic coupling of face area of this input delivery of energy device is coaxially inputted delivery of energy device and electric coupling, and coaxially to input delivery of energy device generally larger, has the problem that occupies other space.
(2) magnetic coupling is coaxially inputted delivery of energy device
Magnetic coupling is coaxially inputted delivery of energy device can be divided into again two kinds of end feedback formula magnetic coupling and other feedback formula magnetic couplings.
End feedback formula magnetic coupling: because inner wire is generally thinner, in the situation that lengthening input delivery of energy device length, reliability reduces.
Other feedback formula magnetic coupling: have the problem that occupies other two-dimensional space.
(3) delivery of energy device is coaxially inputted in electric coupling
Delivery of energy device is coaxially inputted in electric coupling can be divided into again two kinds of end feedback formula electric coupling and the electric coupling of other feedback formula.
End feedback formula electric coupling: because inner wire is generally thinner, in the situation that lengthening input delivery of energy device length, reliability reduces.
Other feedback formula electric coupling: have the problem that occupies other two-dimensional space.
Therefore, necessary on the basis of prior art a kind of structural design of research and design more reasonable, reliability is high, does not occupy two-dimensional space, can realize single mode transport, and the end feedback formula of good stability input delivery of energy device.
Summary of the invention
Goal of the invention: the purpose of this utility model is in order to solve the deficiencies in the prior art, provides a kind of structural design more reasonable, function admirable, reliability is high, does not occupy two-dimensional space, can realize single mode transport, and the end feedback formula of good stability input delivery of energy device.
Technical scheme: in order to realize above object, technical solution adopted in the utility model is:
The end feedback formula input delivery of energy device that a kind of travelling wave tube is used, it comprises: the mode converter of coaxial delivery of energy head and microwave energy and be arranged on the movably allotment screw in waveguide, described coaxial delivery of energy head is fixed on the end face short-circuit block of waveguide, described coaxial delivery of energy head comprises delivery of energy window, be arranged on the delivery of energy outer conductor of the coaxial line of portion outside window, be arranged on the inner wire of the coaxial line of delivery of energy window inside, the mode converter of described microwave energy comprises L shaped coaxial inner conductor and the stepped impedance transformer being connected with L shaped coaxial inner conductor, the inner wire of described coaxial line is inserted in the inside of waveguide, and be connected with L shaped coaxial inner conductor.
As preferred version, the end feedback formula input delivery of energy device that above-described travelling wave tube is used, described movably allotment screw is two.
As preferred version, the end feedback formula input delivery of energy device that above-described travelling wave tube is used, described delivery of energy window is the delivery of energy window of SMA series.
As preferred version, the end feedback formula input delivery of energy device that above-described travelling wave tube is used, described L shaped coaxial inner conductor is that square conductor forms by outer surface.
The end feedback formula input delivery of energy device that travelling wave tube described in the utility model is used, wherein the inner wire of coaxial line, L shaped coaxial inner conductor and the wide wall of guide floor are in conjunction with forming a magnetic coupling ring, it changes microwave energy by magnetic-coupled mode between the TE10 of TEM pattern and rectangular waveguide pattern, and can allocate by stepped impedance transformer with movably screw, complete and the impedance matching of match circuit, realize the transmission of microwave energy.
Beneficial effect: the end feedback formula input delivery of energy device that the travelling wave tube that the utility model provides is used compared with prior art has the following advantages:
The end feedback formula input delivery of energy apparatus structure that the travelling wave tube that the utility model provides is used is reasonable in design, function admirable, and reliability is high, does not especially occupy two-dimensional space; Can realize single mode transport; And be easy to realize mating of slow wave line and delivery of energy device by allotment screw; Also can realize in addition vacuum seal, can be under high and low temperature environmental condition steady operation, can overcome the deficiency of delivery of energy device in prior art.
Accompanying drawing explanation
The end feedback formula that Fig. 1 uses for the travelling wave tube that the utility model provides is inputted the structural representation of delivery of energy device.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment and only for the utility model is described, be not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
Embodiment 1
As shown in Figure 1, the end feedback formula input delivery of energy device that a kind of travelling wave tube is used, it comprises: the mode converter of coaxial delivery of energy head and microwave energy and be arranged on the movably allotment screw (1) in waveguide, described coaxial delivery of energy head is fixed on the end face short-circuit block (2) of waveguide, described coaxial delivery of energy head comprises delivery of energy window (3), be arranged on the outer conductor (4) of the outside coaxial line of delivery of energy window (3), be arranged on the inner wire (5) of the inner coaxial line of delivery of energy window (3), the mode converter of described microwave energy comprises L shaped coaxial inner conductor (6) and the stepped impedance transformer (7) being connected with L shaped coaxial inner conductor (6), the inner wire (5) of described coaxial line is inserted in the inside of waveguide, and be connected with L shaped coaxial inner conductor (6).
The end feedback formula input delivery of energy device that above-described travelling wave tube is used, described movably allotment screw (1) is two.
The end feedback formula input delivery of energy device that above-described travelling wave tube is used, described delivery of energy window (3) is the delivery of energy window of SMA series.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (2)
1. the end feedback formula input delivery of energy device that travelling wave tube is used, it is characterized in that, it comprises: the mode converter of coaxial delivery of energy head and microwave energy and be arranged on the movably allotment screw (1) in waveguide, described coaxial delivery of energy head is fixed on the end face short-circuit block (2) of waveguide, described coaxial delivery of energy head comprises delivery of energy window (3), be arranged on the outer conductor (4) of the outside coaxial line of delivery of energy window (3), be arranged on the inner wire (5) of the inner coaxial line of delivery of energy window (3), the mode converter of described microwave energy comprises L shaped coaxial inner conductor (6) and the stepped impedance transformer (7) being connected with L shaped coaxial inner conductor (6), the inner wire (5) of described coaxial line is inserted in the inside of waveguide, and be connected with L shaped coaxial inner conductor (6).
2. the end feedback formula input delivery of energy device that travelling wave tube according to claim 1 is used, is characterized in that, described movably allotment screw (1) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320717478.7U CN203588964U (en) | 2013-11-13 | 2013-11-13 | End feed type input energy transmission device for travelling-wave tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320717478.7U CN203588964U (en) | 2013-11-13 | 2013-11-13 | End feed type input energy transmission device for travelling-wave tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203588964U true CN203588964U (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320717478.7U Expired - Fee Related CN203588964U (en) | 2013-11-13 | 2013-11-13 | End feed type input energy transmission device for travelling-wave tube |
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| CN (1) | CN203588964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148243A (en) * | 2018-08-21 | 2019-01-04 | 电子科技大学 | Wideband high-power delivery of energy structure suitable for helix TWT |
-
2013
- 2013-11-13 CN CN201320717478.7U patent/CN203588964U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148243A (en) * | 2018-08-21 | 2019-01-04 | 电子科技大学 | Wideband high-power delivery of energy structure suitable for helix TWT |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20211113 |