CN105489989B - A kind of large power waveguide electrically tunable filter - Google Patents
A kind of large power waveguide electrically tunable filter Download PDFInfo
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- CN105489989B CN105489989B CN201510980674.7A CN201510980674A CN105489989B CN 105489989 B CN105489989 B CN 105489989B CN 201510980674 A CN201510980674 A CN 201510980674A CN 105489989 B CN105489989 B CN 105489989B
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- waveguide
- coupling mechanism
- resonant cavity
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- inner wire
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- 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
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
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Abstract
The present invention relates to a kind of large power waveguide electrically tunable filters in the communications field, inhibit the transmitting device of out-of-band interference signal suitable for the channel of C-band communication system.The present invention includes waveguide resonant cavity, coupling mechanism, tuning inner wire, chokes guiding mechanism and transmission mechanism, wherein coupling mechanism and is made of coupling mechanism between input and output coupling mechanism and chamber.Transmission signal enters input and output coupling mechanism from waveguide entrance, sequentially by being exported after coupling mechanism between waveguide resonant cavity and chamber from waveguide outlet；Tuning inner wire enters waveguide resonant cavity from waveguide narrow side across chokes guiding mechanism, and the depth that waveguide resonant cavity is deep by transmission mechanism synchronous change tuning inner wire completes frequency tuning.The present invention bears performance when power is big, passband changes small, forward and reverse frequency modulation in the range of frequency band adjustable and stablizes, and meets communication equipment and the requirement that performance is stablized when power is big, passband changes small, forward and reverse frequency modulation in the range of frequency band adjustable is born to electrically tunable filter product.
Description
Technical field
The present invention relates to the communications field, more particularly, to a kind of large power waveguide electrically tunable filter, especially suitable for C-band
The transmitting device of inhibition work out-of-band interference semiotic function is completed in the channel of communication system.
Background technology
Coaxial cavity electrically tunable filter is had been widely used on the wave bands such as VHF, UHF, L, the C used at present in communication system, is made
The performance of communication system is enhanced, but communication equipment is still constantly to high-power, high-performance, high reliability side
To continuing to develop.Coaxial cavity electrically tunable filter when frequency is relatively low by being easier to realize, though in C-band small volume, power holds
Measure it is limited be suitable only for middle low power application, and to bear power big for waveguide cavity filter, can make it in Frequency Adjustable by design of Simulation
Bandwidth variation is smaller in the range of rate, so as to meet communication system requirements.Meanwhile compared with low-frequency range, the resonator of electrically tunable filter
It generally being contacted between tuning inner wire using short-circuit spring leaf, performance is fine, but in frequency ranges such as frequency higher C, X,
Short-circuit capability between tuning inner wire and resonator should be made good, but must respectively be tuned in frequency tuning inner wire it is synchronous and
Forward and reverse performance is stablized, then harsh requirement is proposed to the material of short-circuit spring leaf and processing technology, therefore designs and a kind of can replace
Then become a difficult problem that designer faces for the structure of short-circuit spring leaf and performance stabilization.
Invention content
The technical problems to be solved by the invention, which are to provide one kind and work in C-band, bears that power is big, passband is in Frequency Adjustable
The electrically tunable filter that performance is stablized when changing small, forward and reverse frequency modulation in segment limit.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of large power waveguide electrically tunable filter,
Including waveguide resonant cavity 1, coupling mechanism 2, tuning inner wire 3 and chokes guiding mechanism 4, coupling mechanism 2 includes input and output coupling
Close coupling mechanism 7 between mechanism 6 and one or more chambers；Transmission signal enters input and output coupling mechanism 6 from input port, suitable
Sequence passes through defeated from output port after coupling mechanism 7, waveguide resonant cavity 1 and input and output coupling mechanism 6 between waveguide resonant cavity 1, chamber
Go out, input, output port are waveguide mouth, and waveguide resonant cavity 1 is multiple, coupling machine between transit chamber between each waveguide resonant cavity 1
Structure 7 cascades；Each tuning inner wire 3, which is corresponded to across a chokes guiding mechanism 4, stretches into waveguide resonant cavity 1；Chokes guiding mechanism 4
Sleeve 11 including choke groove 10 and containing conductive axle sleeve, sleeve 11 are fixed on waveguide narrow side and wrap tuning inner wire 3；It grips
Chute 10 inwardly mills out between sleeve 11 and waveguide resonant cavity 1 in waveguide narrow side, choke groove 10 with tuning inner wire 3 it
Between have the gap, gap Filled Dielectrics therebetween.
Wherein, the depth of the choke groove 10 is quarter-wave.
Wherein, between chokes guiding mechanism 4 and tuning inner wire 3 it is contactless short circuit, is led in choke groove 10 and tuning
Gap air or low loss dielectric filling between body 3.
Wherein, transmission mechanism 5 is further included, transmission mechanism 5 is fixed on waveguide broadside, and all tuning inner wires 3 are each attached to
On transmission mechanism 5, adjusted by transmission mechanism 5 and tune the depth completion frequency tune that inner wire 3 is extend into waveguide resonant cavity 1
It is humorous.
Wherein, coupling mechanism 7 is integrated and perpendicular to waveguide between the input and output coupling mechanism 6 and chamber
Broadside, coupling mechanism 7 includes one or more perceptual pins 8 between input and output coupling mechanism 6 and chamber and one or more is held
Property pin 9.
Wherein, the capacitive pin 9 of input and output coupling mechanism 6 is distributed on the outside of perceptual pin 8, coupling mechanism 7 between chamber
Capacitive pin 9 be distributed between two perceptual pins 8；Perceptual pin 8 and capacitive pin 9 are cuboid, and about coupling
2 central symmetry of mechanism.
Wherein, all tuning inner wires 3 are the identical cylinder of size, stretch into one end end face of waveguide resonant cavity 1
For rounding horn shape or hemispherical, all tuning inner wires 3 are each perpendicular to waveguide narrow side and the synchronous fortune under the driving of transmission mechanism 5
It is dynamic.
By adopting the above-described technical solution, the technological innovation acquired by the present invention is：
1st, the present invention is operated in C-band, using waveguide resonant cavity and Waveguide interface, bears power up to 1000W, meets
Communication equipment is to powerful requirement.
2nd, the present invention newly devises integrated coupling mechanism so that passband changes small, stopband suppression in the range of frequency band adjustable
System without deterioration, meets communication equipment and changes small requirement in the range of frequency band adjustable to filter passband substantially.
3rd, the present invention devises novel non-contact chokes guiding mechanism, without straight between waveguide resonant cavity and tuning inner wire
Contact, the requirement that performance is stablized when meeting communication equipment forward and reverse to wave filter frequency modulation.
Description of the drawings
Fig. 1 is the filter construction schematic diagram of the present invention；
Fig. 2 is the coupling mechanism schematic diagram of the present invention；
Fig. 3 is the chokes guiding mechanism of the present invention and tuning inner wire schematic diagram.
Specific embodiment
The present invention is described in further details below in conjunction with the accompanying drawings：
Fig. 1 is the filter construction schematic diagram of the present invention.The waveguide electrically tunable filter of the present invention includes waveguide resonant cavity, coupling
Close mechanism, tuning inner wire, chokes guiding mechanism and transmission mechanism, wherein coupling mechanism can be divided into input and output coupling mechanism and
Coupling mechanism between chamber.Transmission signal enters input and output coupling mechanism from waveguide entrance, sequentially by between waveguide resonant cavity, chamber
It is exported after coupling mechanism, waveguide resonant cavity, input and output coupling mechanism from waveguide outlet.Resonator type is waveguide form, is connect
Mouth is waveguide mouth, is cascaded between each resonator with coupling mechanism between chamber, tuning inner wire stretches into waveguide across chokes guiding mechanism
Resonator is adjusted by transmission mechanism and tunes the depth completion frequency tuning that inner wire extend into wave guide resonance intracavitary.This structure
Design meets communication equipment can bear powerful requirement to wave filter.
Fig. 2 is coupling mechanism schematic diagram between input and output coupling mechanism and chamber of the invention.Input and output coupling mechanism and
Coupling mechanism is integrated and perpendicular to waveguide broadside between chamber, containing perceptual pin and capacitive pin；Input and output coupling
The capacitive pin for closing mechanism is distributed in the outside of perceptual pin, and the capacitive pin of coupling mechanism is distributed in two perceptual pins between chamber
Between.Perceptual pin and capacitive pin are rectangular shaped post, and about above and below filter center line, it is symmetrical.This structure is set
Meter meets communication equipment and changes small requirement in the range of frequency band adjustable to filter passband.
Fig. 3 is the chokes guiding mechanism of the present invention and tuning inner wire schematic diagram.Chokes guiding mechanism is located at waveguide narrow side,
It is included in depth for quarter-wave choke groove and the sleeve containing conductive axle sleeve；Chokes guiding mechanism and tuning inner wire
Between be contactless short circuit, therebetween gap available air or low loss dielectric filling.All tuning inner wires are identical for size
Cylinder, stretch into one end end face rounded corner of waveguide resonant cavity or be processed into hemispherical, all tuning inner wires are fixed
On a transmission mechanism, it is synchronized with the movement perpendicular to waveguide narrow side and under the drive of the transmission mechanism.This structure design meets
The requirement that performance is stablized during communication equipment forward and reverse to wave filter frequency modulation.
Mounting structure of the present invention is as follows：The input of wave filter, output waveguide mouth respectively with the input of communication equipment, delivery outlet
Connection.Coupling mechanism is integrated with waveguide resonant cavity assembling, and chokes guiding mechanism is located in the narrow side of waveguide resonant cavity, in tuning
Conductor one end is fixed on transmission mechanism, and one end enters waveguide resonant cavity across chokes guiding mechanism, and transmission mechanism is consolidated with screw
It is scheduled on waveguide resonant cavity.
Claims (7)
1. a kind of large power waveguide electrically tunable filter, including waveguide resonant cavity (1), coupling mechanism (2), tuning inner wire (3) and
Chokes guiding mechanism (4), coupling mechanism (2) include coupling mechanism between input and output coupling mechanism (6) and one or more chambers
(7)；Transmission signal enters the first input and output coupling mechanism (6) from input port, sequentially passes through waveguide resonant cavity (1), chamber
Between exported from output port after coupling mechanism (7), waveguide resonant cavity (1) and the second input and output coupling mechanism (6), it is input, defeated
Exit port is waveguide mouth, and waveguide resonant cavity (1) is multiple, coupling mechanism (7) grade between transit chamber between each waveguide resonant cavity (1)
Connection；It is characterized in that：Each tuning inner wire (3) is corresponding to stretch into waveguide resonant cavity (1) across a chokes guiding mechanism (4)；
Sleeve (11) of the chokes guiding mechanism (4) including choke groove (10) and containing conductive axle sleeve, sleeve (11) are fixed on waveguide narrow side
And wrap tuning inner wire (3)；Choke groove (10) between sleeve (11) and waveguide resonant cavity (1), waveguide narrow side to
It inside mills out, is had the gap between choke groove (10) and tuning inner wire (3), therebetween gap Filled Dielectrics.
2. a kind of large power waveguide electrically tunable filter according to claim 1, it is characterised in that：The choke groove (10)
Depth be quarter-wave.
3. a kind of large power waveguide electrically tunable filter according to claim 1 or 2, it is characterised in that：Chokes guiding mechanism
(4) it is contactless short circuit between tuning inner wire (3), the gap between choke groove (10) and tuning inner wire (3) is empty
Gas or low loss dielectric filling.
4. a kind of large power waveguide electrically tunable filter according to claim 1, it is characterised in that：Further include transmission mechanism
(5), transmission mechanism (5) is fixed on waveguide broadside, and all tuning inner wires (3) are each attached on transmission mechanism (5), pass through transmission
Mechanism (5) adjusts the depth that tuning inner wire (3) is extend into waveguide resonant cavity (1) and completes frequency tuning.
5. a kind of large power waveguide electrically tunable filter according to claim 1, it is characterised in that：First input is defeated
Go out coupling mechanism (6), the second input and output coupling mechanism (6) coupling mechanism (7) between chamber is integrated and perpendicular to
Waveguide broadside, the first input and output coupling mechanism (6), the second input and output coupling mechanism (6) coupling mechanism (7) between chamber wrap
Include one or more perceptual pins (8) and one or more capacitive pins (9).
6. a kind of large power waveguide electrically tunable filter according to claim 5, it is characterised in that：First input and output couple
The capacitive pin (9) of mechanism (6) and the second input and output coupling mechanism (6) is distributed on the outside of perceptual pin (8), is coupled between chamber
The capacitive pin (9) of mechanism (7) is distributed between two perceptual pins (8)；Perceptual pin (8) and capacitive pin (9) are length
Cube, and about coupling mechanism (2) central symmetry.
7. a kind of large power waveguide electrically tunable filter according to claim 1, it is characterised in that：All tuning inner wires
(3) it is the identical cylinder of size, one end end face for stretching into waveguide resonant cavity (1) is rounding horn shape or hemispherical, is owned
Tuning inner wire (3) is each perpendicular to waveguide narrow side and is synchronized with the movement under the driving of transmission mechanism (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980674.7A CN105489989B (en) | 2015-12-24 | 2015-12-24 | A kind of large power waveguide electrically tunable filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980674.7A CN105489989B (en) | 2015-12-24 | 2015-12-24 | A kind of large power waveguide electrically tunable filter |
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| Publication Number | Publication Date |
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| CN105489989A CN105489989A (en) | 2016-04-13 |
| CN105489989B true CN105489989B (en) | 2018-06-26 |
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| CN201510980674.7A Active CN105489989B (en) | 2015-12-24 | 2015-12-24 | A kind of large power waveguide electrically tunable filter |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256609B (en) * | 2017-07-13 | 2020-04-03 | 昇达科技股份有限公司 | Non-contact type frequency automatic adjusting and detecting filter with leakage-proof cavity |
| CN110364796A (en) * | 2019-02-12 | 2019-10-22 | 深圳铭杰医疗科技有限公司 | A kind of telescopic waveguide and accelerator system |
| CN111816967B (en) * | 2020-07-16 | 2022-04-01 | 成都赛纳微波科技有限公司 | High-power waveguide tuner |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702456A (en) * | 2009-11-30 | 2010-05-05 | 西南交通大学 | Minitype broadband throttling device used for transmission shaft in guided wave system |
| CN205303634U (en) * | 2015-12-24 | 2016-06-08 | 中国电子科技集团公司第五十四研究所 | High -power waveguide electrically tunable filter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2489605A1 (en) * | 1980-08-29 | 1982-03-05 | Thomson Csf | DIELECTRIC RESONATOR HYPERFREQUENCE FILTER, TUNABLE IN A BIG BANDWIDTH, AND CIRCUIT COMPRISING SUCH A FILTER |
| JP3583478B2 (en) * | 1994-08-30 | 2004-11-04 | 株式会社ダイヘン | Movable stub tuner for microwave |
| JP4986913B2 (en) * | 2008-04-08 | 2012-07-25 | 三菱電機株式会社 | Rotary joint |
| CN201466178U (en) * | 2009-08-03 | 2010-05-12 | 中国电子科技集团公司第五十四研究所 | Adjustable duplexer |
| CN201466184U (en) * | 2009-08-06 | 2010-05-12 | 中国电子科技集团公司第五十四研究所 | Ku band electric adjustable filter |
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- 2015-12-24 CN CN201510980674.7A patent/CN105489989B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702456A (en) * | 2009-11-30 | 2010-05-05 | 西南交通大学 | Minitype broadband throttling device used for transmission shaft in guided wave system |
| CN205303634U (en) * | 2015-12-24 | 2016-06-08 | 中国电子科技集团公司第五十四研究所 | High -power waveguide electrically tunable filter |
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