CN209056583U - 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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- CN209056583U CN209056583U CN201822132222.5U CN201822132222U CN209056583U CN 209056583 U CN209056583 U CN 209056583U CN 201822132222 U CN201822132222 U CN 201822132222U CN 209056583 U CN209056583 U CN 209056583U
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Abstract
The utility model 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 the utility model 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 utility model 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.
Utility model content
In place of the purpose of this utility model is to overcome above-mentioned deficiency, a kind of X-band high power circular chamber filtering is provided
Device, the utility model is characterized in that, high-power, circular waveguide cavity configuration and symmetrical tuning manner, while structure is simple, processing
Manufacture is easy.
In order to solve the above technical problems, technical solution provided by the utility model 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 acquired by the utility model is:
1, the utility model uses circular waveguide chamber as resonant cavity, and works in single mode TE111 mode, has high q-factor
The characteristics of, meet the low-loss demand of filter；Simultaneously because the electric field maximum of TE111 mode is distributed in cavity middle part
Point, so that filter has very big power capacity, reach 2000W or more in X frequency band power capacity.
2, the utility model is in such a way that coupling tuning screw 4 and frequency tuning screw 5 are symmetrical, tuning screw
It is symmetrically distributed in the correspondence two sides of box body 1；Coupling tuning screw 4 couples the lower position of 10 short transverses between chamber, described
Frequency tuning screw 5 be located at medium position and the biggish position of field strength of 8 short transverse of circular waveguide resonant cavity.It is this to set
The susceptibility for setting mode coupling tuning screw 4 and frequency tuning screw 5 is higher, can be achieved with lesser tuning length biggish
Frequency tuning amount and coupling tuning amount avoid tuning screw and go deep into the too long caused point discharge influence filter of resonant cavity
The drawbacks of energy, the tuning range of filter is also improved, improves the success rate of filter debugging.Meanwhile circular waveguide chamber gos deep into
Perturbation can be generated after tuning screw, occurred influencing the frequency component of working performance in the operating frequency range of care, caused to filter
There is burr phenomena in wave device curve, and the setting of symmetrical tuning screw, so that the symmetrical adjustment tuning screw in filter debugging
It can ensure that the smooth of filter curve to avoid the appearance of other frequency components.
3, the utility model uses the structure of rectangle coupling window, and circular waveguide chamber and coupling window have a side to exist
In approximately the same plane, the arrangement of circular waveguide chamber and coupling window is uniform rectilinear, and filter is made there was only box body 1 and cover board 2 two
Main 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 the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram (top view) of the utility model；
Fig. 3 is 1 structural schematic diagram of box body of the utility model；
Fig. 4 is 2 structural schematic diagram of cover board of the utility model.
Specific embodiment
The utility model is described further with reference to the accompanying drawings and detailed description:
Fig. 1 is the structural schematic diagram of the utility model, including box body 1, cover board 2 and fastening screw 6, cover board 2 are fastened on box
The top of body 1.Coupling tuning screw 4 and frequency tuning screw 5, coupling tuning screw 4 and frequency tuning spiral shell are equipped on box body 1
Nail 5 is symmetrically arranged amongst the two sides of 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 screw 6 is assembled together.The input and output tuning screw 3, by adjusting the length adjustment for going deep into input and output coupling 9
The size of input and output coupling amount；The coupling tuning screw 4, by adjusting coupling between the length adjustment chamber of coupling 10 is goed deep between chamber
The size of resultant；The frequency tuning screw 5, by adjusting the length adjustment circular waveguide resonant cavity for going deep into circular waveguide resonant cavity 8
Resonance frequency height.
Fig. 2 is the structural schematic diagram (top view) of the utility model, and the coupling tuning screw 4 is to be arranged in pairs, should
Coupling tuning screw 4 is arranged in the correspondence two sides of box body 1；The frequency tuning screw 5 is to be arranged in pairs, this is to frequency tune
The correspondence two sides of box body 1 are arranged in humorous screw 5.The coupling tuning screw 4 couples the lower part of 10 short transverses between chamber
Position；The frequency tuning screw 5 is located at the medium position of 8 short transverse of circular waveguide resonant cavity.This setup frequency
The susceptibility of tuning screw 5 and coupling tuning screw 4 is higher, is more convenient to obtain required filter electric property song in debugging
Line, while symmetrical tuning manner inhibits the generation of interference frequency component.
Fig. 3 is 1 structural schematic diagram of box body of the utility model, and both ends are each provided with one input/output port 7, two
Multiple circular waveguide resonant cavities 8 are provided between a input/output port 7, coupling 10 between the chamber between adjacent circular waveguide resonant cavity 8 is
Rectangle couples window structure, and the input and output coupling 9 between input/output port 7 and adjacent circular waveguide resonant cavity 8 couples for rectangle
Window 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 mark
The form of quasi- flange FDP84, can satisfy high-power pass through.Circular waveguide resonant cavity 8 according to the needs of filter electric property its
Quantity can be between 2-11, and uniform rectilinear arrangement adjusts the depth of circular waveguide resonant cavity 8 according to resonance frequency difference.Between chamber
Coupling 10 is rectangular configuration between circular waveguide resonant cavity 8, and input and output coupling 9 is located at input/output port 7 and circular waveguide
It is rectangular configuration between resonant cavity 8；The two width is equal, by adjusting the size of Level Change coupling amount.Radiation tooth 11 is located at
The two sides of box body 1 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 utility model, and both ends are ladder-type structure 12, and shape and box body 1 are opposite
It answers, this structure can preferably realize function of shielding, prevent the electromagnetic energy of filter internal from leaking outside, improve the electricity of filter
Gas performance.
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 claim 1 or 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 |
|---|---|---|---|
| CN201822132222.5U CN209056583U (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 |
|---|---|---|---|
| CN201822132222.5U CN209056583U (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 |
|---|---|
| CN209056583U true CN209056583U (en) | 2019-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822132222.5U Active CN209056583U (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 |
|---|---|---|---|---|
| CN109687069A (en) * | 2018-12-19 | 2019-04-26 | 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 |
| CN114614223A (en) * | 2022-03-23 | 2022-06-10 | 京信射频技术(广州)有限公司 | Base station antenna and cavity filter |
-
2018
- 2018-12-19 CN CN201822132222.5U patent/CN209056583U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687069A (en) * | 2018-12-19 | 2019-04-26 | 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 |
| CN114614223A (en) * | 2022-03-23 | 2022-06-10 | 京信射频技术(广州)有限公司 | Base station antenna and cavity filter |
| CN114614223B (en) * | 2022-03-23 | 2023-11-24 | 京信射频技术(广州)有限公司 | Base station antenna and cavity filter |
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