CN109687069A - A kind of X-band high power circular cavity filter - Google Patents
A kind of X-band high power circular cavity filter Download PDFInfo
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- CN109687069A CN109687069A CN201811552807.0A CN201811552807A CN109687069A CN 109687069 A CN109687069 A CN 109687069A CN 201811552807 A CN201811552807 A CN 201811552807A CN 109687069 A CN109687069 A CN 109687069A
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- tuning screw
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- screw
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- 230000008878 coupling Effects 0.000 claims abstract description 57
- 238000010168 coupling process Methods 0.000 claims abstract description 57
- 238000005859 coupling reaction Methods 0.000 claims abstract description 57
- 230000005764 inhibitory process Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
Classifications
-
- 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 X-band high power circular cavity filters, especially suitable for completing the function of inhibition interference signal in the channel of high-power communication system.The X-band high power circular cavity filter includes box body (1), cover board (2) and fastening screw (6), and cover board (2) is fastened on the top of box body (1).Coupling tuning screw (4) and frequency tuning screw (5) are equipped on the box body (1), coupling tuning screw (4) and frequency tuning screw (5) are symmetrically arranged amongst the two sides of box body (1).Input and output coupling tuning screw (3) are equipped on the cover board (2).The characteristics of present invention uses circular waveguide resonant cavity and symmetrical tuning manner, has power capacity big, and loss is low, tunes fast and easy.
Description
Technical field
The present invention relates to a kind of X-band high power circular cavity filters, belong to art of microwave filters field.
Background technique
With the increase of message capacity, higher want all is put forward to the power of cavity body filter, quality and volume aspect
It asks.
It is disclosed in Patent No. CN201110047723.3 Chinese invention patent in the prior art " a kind of high-power
It uses a kind of 4 rank corner cut filter with square cavities to realize that TE011 mode is transmitted to corner cut filter with square cavity ", the filtering for Ku frequency range
Device, but the Q value of square cavity filter is relatively low.It is disclosed in Patent No. CN201110052437.6 Chinese invention patent
" a kind of cylindrical cavity bimodulus sidewall coupling filter for inhibiting parasitic couplings " proposes the high-power cylindrical cavity filter of single mode transport, but
It is that structure is complicated, is unfavorable for processing and debug.
The advantages of circular waveguide cavity filter is that Q value is high, it is big to bear power, but the difficult point to be overcome is to realize single mode transport,
It needs a kind of processing and debugging convenient at present, and is able to bear the high-power cylindrical cavity filter of 2000W or more.
Summary of the invention
It is an object of the present invention to overcome the above deficiencies, provides a kind of X-band high power circular cavity filter, this
The characteristics of invention is high-power, circular waveguide cavity configuration and symmetrical tuning manner, while structure is simple, processing and manufacturing is easy.
In order to solve the above technical problems, the technical solution provided by the present invention is:
A kind of X-band high power circular cavity filter, including box body 1, cover board 2 and fastening screw 6, cover board 2 are fastened on
The top of box body 1, the both ends of box body 1 are each provided with an input/output port 7, are arranged between two input/output ports 7
There are multiple circular waveguide resonant cavities 8, coupling 10 couples window structure for rectangle between the chamber between adjacent circular waveguide resonant cavity 8, inputs defeated
Input and output coupling 9 between exit port 7 and adjacent circular waveguide resonant cavity 8 couples window structure for rectangle, it is characterised in that: also wraps
It includes and couples 10 one-to-one multiple coupling tuning screws 4 between multiple chambers, it is one-to-one more with multiple circular waveguide resonant cavities 8
A frequency tuning screw 5；Coupling tuning screw 4 is arranged on the side wall of box body 1,4 one end of coupling tuning screw coupling between chamber
It closes in 10,4 other end of coupling tuning screw is located at the outside of 1 side wall of box body；The side wall of box body 1 is arranged in frequency tuning screw 5
On, 5 one end of frequency tuning screw is located in circular waveguide resonant cavity 8, and 5 other end of frequency tuning screw is located at the outer of 1 side wall of box body
Portion.
Wherein, the coupling tuning screw 4 is to be arranged in pairs, this coupling tuning screw 4 is arranged in the correspondence of box body 1
Two sides；The frequency tuning screw 5 is to be arranged in pairs, this frequency tuning screw 5 is arranged in the correspondence two sides of box body 1.
It wherein, further include input and output coupling tuning screw 3；The setting of input and output coupling tuning screw 3 is being covered
On plate 2,3 one end of input and output coupling tuning screw is located in input and output coupling 9, and input and output coupling tuning screw 3 is another
End is located at the outside of cover board 2.
Wherein, the coupling tuning screw 4 couples the lower position of 10 short transverses between chamber；The frequency tune
Humorous screw 5 is located at the medium position of 8 short transverse of circular waveguide resonant cavity.
By adopting the above-described technical solution, technological progress obtained by the present invention is:
1, present invention employs circular waveguide chambers as resonant cavity, and works in single mode TE111 mode, the spy with high q-factor
Point meets the low-loss demand of filter；Simultaneously because the electric field maximum of TE111 mode is distributed in cavity middle section, make
Obtaining filter has very big power capacity, reaches 2000W or more in X frequency band power capacity.
2, the mode symmetrical present invention employs coupling tuning screw 4 and frequency tuning screw 5, tuning screw are symmetrical
It is distributed in the correspondence two sides of box body 1；Coupling tuning screw 4 couples the lower position of 10 short transverses, the frequency between chamber
Rate tuning screw 5 is located at medium position and the biggish position of field strength of 8 short transverse of circular waveguide resonant cavity.This set side
The susceptibility of formula coupling tuning screw 4 and frequency tuning screw 5 is higher, can be achieved with biggish frequency with lesser tuning length
Tuning amount and coupling tuning amount avoid tuning screw and go deep into the too long caused point discharge influence performance of filter of resonant cavity
Drawback also improves the tuning range of filter, improves the success rate of filter debugging.Meanwhile circular waveguide chamber deeply tunes
Perturbation can be generated after screw, occurred influencing the frequency component of working performance in the operating frequency range of care, led to filter
There is burr phenomena in curve, and the setting of symmetrical tuning screw, so that the symmetrical adjustment tuning screw in filter debugging
To avoid the appearance of other frequency components, the smooth of filter curve ensure that.
3, present invention employs the structures of rectangle coupling window, and circular waveguide chamber and coupling window have a side same
In a plane, the arrangement of circular waveguide chamber and coupling window is uniform rectilinear, and filter is made there was only 2 two main bodys of box body 1 and cover board
Structure is assembled by fastening screw 6.Filter has structure simple, and processing and manufacturing is easy, feature at low cost.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is structural schematic diagram of the invention (top view)；
Fig. 3 is 1 structural schematic diagram of box body of the invention；
Fig. 4 is 2 structural schematic diagram of cover board of the invention.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and detailed description:
Fig. 1 is structural schematic diagram of the invention, including box body 1, cover board 2 and fastening screw 6, cover board 2 are fastened on box body 1
Top.Coupling tuning screw 4 and frequency tuning screw 5 are equipped on box body 1, coupling tuning screw 4 and frequency tuning screw 5 are right
Claim the two sides for being arranged in box body 1.Input and output coupling tuning screw 3 is equipped on cover board 2.Box body 1 and cover board 2 pass through fastening spiral shell
Nail 6 is assembled together.The input and output tuning screw 3, it is defeated by adjusting the length adjustment input for going deep into input and output coupling 9
The size of coupling amount out；The coupling tuning screw 4, by adjusting coupling amount between the length adjustment chamber of coupling 10 is goed deep between chamber
Size；The frequency tuning screw 5, by adjusting the resonance for the length adjustment circular waveguide resonant cavity for going deep into circular waveguide resonant cavity 8
Frequency height.
Fig. 2 is structural schematic diagram of the invention (top view), and the coupling tuning screw 4 is to be arranged in pairs, this is to coupling
Close the correspondence two sides that box body 1 is arranged in tuning screw 4；The frequency tuning screw 5 is to be arranged in pairs, this is to frequency tuning spiral shell
The correspondence two sides of box body 1 are arranged in nail 5.The coupling tuning screw 4 couples the lower position of 10 short transverses between chamber；
The frequency tuning screw 5 is located at the medium position of 8 short transverse of circular waveguide resonant cavity.This setup frequency tuning spiral shell
The susceptibility of nail 5 and coupling tuning screw 4 is higher, is more convenient to obtain required filter electric property curve in debugging, together
When symmetrical tuning manner inhibit the generation of interference frequency component.
Fig. 3 is 1 structural schematic diagram of box body of the invention, and both ends are each provided with one input/output port 7, defeated at two
Enter and be provided with multiple circular waveguide resonant cavities 8 between output port 7, it is rectangle that 10 are coupled between the chamber between adjacent circular waveguide resonant cavity 8
Window structure is coupled, the input and output coupling 9 between input/output port 7 and adjacent circular waveguide resonant cavity 8 couples window for rectangle
Structure, radiation tooth 11 are located at the two sides of box body 1.Input/output port 7 is the input/output port of filter signal, is standard law
The form of blue FDP84 can satisfy high-power pass through.Circular waveguide resonant cavity 8 is according to its quantity of the needs of filter electric property
Can be between 2-11, uniform rectilinear arrangement adjusts the depth of circular waveguide resonant cavity 8 according to resonance frequency difference.It is coupled between chamber
10 between circular waveguide resonant cavity 8, is rectangular configuration, and input and output coupling 9 is located at input/output port 7 and circular waveguide resonance
It is rectangular configuration between chamber 8；The two width is equal, by adjusting the size of Level Change coupling amount.Radiation tooth 11 is located at box body
1 two sides fast implement heat dissipation in filter work, guarantee filter temperature in the reasonable scope.
Fig. 4 is 2 structural schematic diagram of cover board of the invention, and both ends are ladder-type structure 12, and shape is corresponding with box body 1, this
Kind structure can preferably realize function of shielding, prevent the electromagnetic energy of filter internal from leaking outside, improve the electrical resistance of filter
Energy.
Claims (4)
1. a kind of X-band high power circular cavity filter, including box body (1), cover board (2) and fastening screw (6), cover board (2)
It is fastened on the top of box body (1), the both ends of box body (1) are each provided with an input/output port (7), in two input/output terminals
Multiple circular waveguide resonant cavities (8) are provided between mouth (7), coupling (10) is rectangle between the chamber between adjacent circular waveguide resonant cavity (8)
Window structure is coupled, the input and output coupling (9) between input/output port (7) and adjacent circular waveguide resonant cavity (8) is rectangle coupling
Close window structure, it is characterised in that: it further include that (10) one-to-one multiple coupling tuning screws (4) are coupled between multiple chambers,
With the one-to-one multiple frequency tuning screws (5) of multiple circular waveguide resonant cavities (8)；Coupling tuning screw (4) is arranged in box body
(1) on side wall, coupling tuning screw (4) one end is coupled between chamber in (10), and coupling tuning screw (4) other end is located at box
The outside of body (1) side wall；Frequency tuning screw (5) is arranged on the side wall of box body (1), and frequency tuning screw (5) one end is located at
In circular waveguide resonant cavity (8), frequency tuning screw (5) other end is located at the outside of box body (1) side wall.
2. a kind of X-band high power circular cavity filter according to claim 1, it is characterised in that: the coupling
Tuning screw (4) is to be arranged in pairs, and coupling tuning screw (4) are arranged in the correspondence two sides of box body (1) in this；The frequency tune
Humorous screw (5) is to be arranged in pairs, and frequency tuning screw (5) are arranged in the correspondence two sides of box body (1) in this.
3. a kind of X-band high power circular cavity filter according to claims 1 and 2, it is characterised in that: further include defeated
Enter output coupling tuning screw (3)；The input and output coupling tuning screw (3) is arranged on cover board (2), input and output coupling
It closes tuning screw (3) one end to be located in input and output coupling (9), input and output coupling tuning screw (3) other end is located at cover board
(2) outside.
4. a kind of X-band high power circular cavity filter according to claim 3, it is characterised in that: the coupling
Tuning screw (4) couples the lower position of (10) short transverse between chamber；The frequency tuning screw (5) is located at circular waveguide
The medium position of resonant cavity (8) short transverse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811552807.0A CN109687069A (en) | 2018-12-19 | 2018-12-19 | A kind of X-band high power circular cavity filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811552807.0A CN109687069A (en) | 2018-12-19 | 2018-12-19 | A kind of X-band high power circular cavity filter |
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| Publication Number | Publication Date |
|---|---|
| CN109687069A true CN109687069A (en) | 2019-04-26 |
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ID=66186284
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811552807.0A Pending CN109687069A (en) | 2018-12-19 | 2018-12-19 | A kind of X-band high power circular cavity filter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111834722A (en) * | 2020-07-16 | 2020-10-27 | 电子科技大学 | Double-side pin waveguide tuner |
| CN112257196A (en) * | 2020-10-15 | 2021-01-22 | 扬州市宜楠科技有限公司 | Cavity filter debugging method and device, electronic equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436697A (en) * | 2007-11-14 | 2009-05-20 | 泉州波园射频新技术研究中心 | TM010 module low loss high selectivity cavity filter |
| CN102185170A (en) * | 2011-02-28 | 2011-09-14 | 西安空间无线电技术研究所 | High-power corner cut filter with square cavity |
| US20120293282A1 (en) * | 2011-05-17 | 2012-11-22 | Giuseppe Frenna | Waveguide filter having coupling screws |
| CN209056583U (en) * | 2018-12-19 | 2019-07-02 | 中国电子科技集团公司第五十四研究所 | A kind of X-band high power circular cavity filter |
-
2018
- 2018-12-19 CN CN201811552807.0A patent/CN109687069A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436697A (en) * | 2007-11-14 | 2009-05-20 | 泉州波园射频新技术研究中心 | TM010 module low loss high selectivity cavity filter |
| CN102185170A (en) * | 2011-02-28 | 2011-09-14 | 西安空间无线电技术研究所 | High-power corner cut filter with square cavity |
| US20120293282A1 (en) * | 2011-05-17 | 2012-11-22 | Giuseppe Frenna | Waveguide filter having coupling screws |
| CN209056583U (en) * | 2018-12-19 | 2019-07-02 | 中国电子科技集团公司第五十四研究所 | A kind of X-band high power circular cavity filter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111834722A (en) * | 2020-07-16 | 2020-10-27 | 电子科技大学 | Double-side pin waveguide tuner |
| CN112257196A (en) * | 2020-10-15 | 2021-01-22 | 扬州市宜楠科技有限公司 | Cavity filter debugging method and device, electronic equipment and storage medium |
| CN112257196B (en) * | 2020-10-15 | 2021-07-20 | 扬州市宜楠科技有限公司 | Cavity filter debugging method and device, electronic equipment and storage medium |
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