CN105390781A - Filter - Google Patents
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- CN105390781A CN105390781A CN201510989489.4A CN201510989489A CN105390781A CN 105390781 A CN105390781 A CN 105390781A CN 201510989489 A CN201510989489 A CN 201510989489A CN 105390781 A CN105390781 A CN 105390781A
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- cover plate
- cavity
- slide block
- debugging bar
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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
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Abstract
The invention relates to the technical field of filtering, in particular to a filter. The invention discloses the filter. The filter comprises a resonant cavity, wherein the resonant cavity comprise a cavity body, a harmonic oscillator and a cover plate, the above harmonic oscillator is fixed in the cavity body, the above cover plate is fixed on the upper surface of the cavity body by a fastening bolt and provided with a frequency adjustment assembly in a matching way, the body of the above harmonic oscillator is a metal body, and the inner wall of the body of the harmonic oscillator is provided with a dielectric layer. The filter has the advantages of small volume and high power.
Description
Technical field
The present invention relates to technical field of filtering, be specifically related to a kind of filter.
Background technology
The filter circuit that power-supply filter is made up of electric capacity, inductance and resistance.Filter can carry out effective filtering to the frequency beyond the frequency of characteristic frequency in power line or this frequency, obtains the power supply signal of a characteristic frequency, or eliminates the power supply signal after a characteristic frequency.
Along with progress and the development of microwave technology, filter is widely used in communication technical field, especially technology for radio frequency field as a kind of He Ne laser.Filter is widely used in the base station of communications transmit and reception, and filter is used to select signal of communication, eliminates the clutter outside signal of communication and interference signal.
Along with the fast development of filter, the large filter of a kind of volume small-power is needed in market badly.
Summary of the invention
The object of the present invention is to provide a kind of filter, this filter volume is little and power is large.
For achieving the above object, the invention provides following technical scheme:
A kind of filter, comprise resonant cavity, this resonant cavity comprises cavity, harmonic oscillator and cover plate, above-mentioned harmonic oscillator is fixed in cavity, above-mentioned cover plate is fixed on cavity upper surface by trip bolt, above-mentioned cover plate is equipped with frequency adjustment assembly, and the body of above-mentioned harmonic oscillator is metal body, and the inner body wall of above-mentioned harmonic oscillator is provided with dielectric layer.The effect of this structure is, arranging of dielectric layer can avoid debug component contact with harmonic oscillator and damage filter on the one hand, and dielectric resonance combines with metal harmonic oscillator by the opposing party, plays reduced volume and expands powerful effect.
Preferably, above-mentioned cover plate is provided with screwed hole, and said frequencies adjustment assembly comprises debugging bar, and this debugging bar is debugging threaded rod, and above-mentioned debugging bar is assemblied in above-mentioned screwed hole, and above-mentioned debugging bar is provided with at least two driving wheels, and the diameter of above-mentioned driving wheel is not etc.The effect of this structure is, two driving wheels can play the effect that coarse adjustment combines with thin tuning, makes to regulate quick and precisely, is conveniently adjusted to the resonance frequency of needs.
Preferably, the outer wall of above-mentioned debugging bar is provided with dielectric layer.
Preferably, above-mentioned cover plate is provided with through hole, said frequencies adjustment assembly comprises back-up block and debugging bar, above-mentioned back-up block is assemblied in cover plate outer wall, above-mentioned back-up block sidewall is provided with arc chute, above-mentioned debugging bar one end is provided with driving projection, this driving projection is placed in above-mentioned arc chute, above-mentioned driving projection and above-mentioned arc chute are slidably matched, the above-mentioned debugging bar other end is through above-mentioned through hole, and the debugging bar other end is positioned at cavity, and above-mentioned driving projection is connected with spring, this spring connects above-mentioned cover plate, and above-mentioned spring keeps pretightning force.The effect of this structure is, in some cases, resonator only needs the resonance frequency of two points, drive projection due to the effect of spring, only can stop at two end points of arc chute, can not stop in the middle part of arc chute, the one end making debugging bar be positioned at cavity only stops at two points, the convenient debugging of this structure, switches rapidly and accurately between two resonant frequency points.
Preferably, above-mentioned arc chute slidable fit has the first slide block and the second slide block, and above-mentioned driving projection is between the first slide block and the second slide block, and above-mentioned first slide block and the second slide block are respectively equipped with the trip bolt for itself and arc chute being fixed.The effect of this structure is, the first slide block and the second slide block can the positions of this arc chute end points respectively, namely can adjust the value of two resonant frequency points respectively.
Preferably, the outer wall of above-mentioned debugging bar is provided with dielectric layer.
Beneficial effect of the present invention is: this filter volume is little and power is large.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is the schematic diagram of a kind of execution mode of frequency of the present invention adjustment assembly;
Fig. 3 is the schematic diagram of the another kind of execution mode of frequency of the present invention adjustment assembly.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
The technical scheme that the present invention specifically implements is:
Embodiment 1:
As depicted in figs. 1 and 2, a kind of filter, comprise resonant cavity, this resonant cavity comprises cavity 1, harmonic oscillator 2 and cover plate 3, above-mentioned harmonic oscillator 2 is fixed in cavity 1, and above-mentioned cover plate 3 is fixed on cavity 1 upper surface by trip bolt 4, and above-mentioned cover plate 3 is equipped with frequency adjustment assembly, the body of above-mentioned harmonic oscillator 2 is metal body, and the inner body wall of above-mentioned harmonic oscillator 2 is provided with dielectric layer 21.The effect of this structure is, arranging of dielectric layer 21 can avoid debug component contact with harmonic oscillator 2 and damage filter on the one hand, and dielectric resonance 2 combines with both metal harmonic oscillators 2 by the opposing party, plays reduced volume and expands powerful effect.
Above-mentioned cover plate 3 is provided with screwed hole, and said frequencies adjustment assembly comprises debugging bar 5, and this debugging bar 5 is debugging threaded rod, and above-mentioned debugging bar 5 is assemblied in above-mentioned screwed hole, and above-mentioned debugging bar 5 is provided with at least two driving wheels, and the diameter of above-mentioned driving wheel is not etc.The effect of this structure is, two driving wheels can play the effect that coarse adjustment combines with thin tuning, makes to regulate quick and precisely, is conveniently adjusted to the resonance frequency of needs.
Above-mentioned driving wheel comprises the first driving wheel 51 and the second driving wheel 52, first driving wheel 51 diameter is greater than the second driving wheel 52 diameter, and the second driving wheel 52 is for thick range regulation, and the first driving wheel 51 is for regulating in fine ranges.
The outer wall of above-mentioned debugging bar 5 is provided with dielectric layer 21.
Embodiment 2:
As shown in figures 1 and 3, a kind of filter, comprise resonant cavity, this resonant cavity comprises cavity 1, harmonic oscillator 2 and cover plate 3, above-mentioned harmonic oscillator 2 is fixed in cavity 1, and above-mentioned cover plate 3 is fixed on cavity 1 upper surface by trip bolt 4, and above-mentioned cover plate 3 is equipped with frequency adjustment assembly, the body of above-mentioned harmonic oscillator 2 is metal body, and the inner body wall of above-mentioned harmonic oscillator 2 is provided with dielectric layer 21.The effect of this structure is, arranging of dielectric layer 21 can avoid debug component contact with harmonic oscillator 2 and damage filter on the one hand, and dielectric resonance 2 combines with both metal harmonic oscillators 2 by the opposing party, plays reduced volume and expands powerful effect.
Above-mentioned cover plate 3 is provided with through hole 31, said frequencies adjustment assembly comprises back-up block 6 and debugging bar 5, above-mentioned back-up block 6 is assemblied in cover plate 3 outer wall, above-mentioned back-up block 6 sidewall is provided with arc chute 61, above-mentioned debugging bar 5 one end is provided with and drives projection 53, this driving projection 53 is placed in above-mentioned arc chute 61, above-mentioned driving projection 53 is slidably matched with above-mentioned arc chute 61, above-mentioned debugging bar 5 other end is through above-mentioned through hole 31, debugging bar 5 other end is positioned at cavity 1, above-mentioned driving projection 53 is connected with spring 7, this spring 7 connects above-mentioned cover plate 3, above-mentioned spring 7 keeps pretightning force.The effect of this structure is, in some cases, resonator only needs the resonance frequency of two points, drive projection 53 due to the effect of spring 7, only can stop at two end points of arc chute 61, can not stop in the middle part of arc chute 61, the one end making debugging bar 5 be positioned at cavity 1 only stops at two points, the convenient debugging of this structure, switches rapidly and accurately between two resonant frequency points.
Above-mentioned arc chute 61 slidable fit has the first slide block 611 and the second slide block 612, above-mentioned driving projection 53 is between the first slide block 611 and the second slide block 612, and above-mentioned first slide block 611 and the second slide block 612 are respectively equipped with the trip bolt 4 for itself and arc chute 61 being fixed.The effect of this structure is, the first slide block 611 and the second slide block 612 can the positions of this arc chute 61 end points respectively, namely can adjust the value of two resonant frequency points respectively.
The outer wall of above-mentioned debugging bar 5 is provided with dielectric layer 21.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a filter, comprise resonant cavity, this resonant cavity comprises cavity, harmonic oscillator and cover plate, above-mentioned harmonic oscillator is fixed in cavity, above-mentioned cover plate is fixed on cavity upper surface by trip bolt, and above-mentioned cover plate is equipped with frequency adjustment assembly, it is characterized in that, the body of above-mentioned harmonic oscillator is metal body, and the inner body wall of above-mentioned harmonic oscillator is provided with dielectric layer.
2. filter according to claim 1, it is characterized in that, above-mentioned cover plate is provided with screwed hole, said frequencies adjustment assembly comprises debugging bar, this debugging bar is debugging threaded rod, above-mentioned debugging bar is assemblied in above-mentioned screwed hole, and above-mentioned debugging bar is provided with at least two driving wheels, and the diameter of above-mentioned driving wheel is not etc.
3. filter according to claim 2, is characterized in that, the outer wall of above-mentioned debugging bar is provided with dielectric layer.
4. filter according to claim 1, it is characterized in that, above-mentioned cover plate is provided with through hole, said frequencies adjustment assembly comprises back-up block and debugging bar, above-mentioned back-up block is assemblied in cover plate outer wall, above-mentioned back-up block sidewall is provided with arc chute, above-mentioned debugging bar one end is provided with driving projection, this driving projection is placed in above-mentioned arc chute, above-mentioned driving projection and above-mentioned arc chute are slidably matched, the above-mentioned debugging bar other end is through above-mentioned through hole, the debugging bar other end is positioned at cavity, above-mentioned driving projection is connected with spring, this spring connects above-mentioned cover plate, above-mentioned spring keeps pretightning force.
5. filter according to claim 4, it is characterized in that, above-mentioned arc chute slidable fit has the first slide block and the second slide block, above-mentioned driving projection is between the first slide block and the second slide block, and above-mentioned first slide block and the second slide block are respectively equipped with the trip bolt for itself and arc chute being fixed.
6. filter according to claim 5, is characterized in that, the outer wall of above-mentioned debugging bar is provided with dielectric layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510989489.4A CN105390781B (en) | 2015-12-28 | 2015-12-28 | Wave filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510989489.4A CN105390781B (en) | 2015-12-28 | 2015-12-28 | Wave filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105390781A true CN105390781A (en) | 2016-03-09 |
| CN105390781B CN105390781B (en) | 2017-11-14 |
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ID=55422788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510989489.4A Active CN105390781B (en) | 2015-12-28 | 2015-12-28 | Wave filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105390781B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5859576A (en) * | 1996-03-29 | 1999-01-12 | Illinois Superconductor Corporation | Extended spring loaded tuner |
| CN1585188A (en) * | 2003-08-23 | 2005-02-23 | Kmw株式会社 | Variable radio frequency band filter |
| CN203260698U (en) * | 2013-04-16 | 2013-10-30 | 深圳光启创新技术有限公司 | Cavity filter |
| CN205303633U (en) * | 2015-12-28 | 2016-06-08 | 范学超 | Filter |
-
2015
- 2015-12-28 CN CN201510989489.4A patent/CN105390781B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5859576A (en) * | 1996-03-29 | 1999-01-12 | Illinois Superconductor Corporation | Extended spring loaded tuner |
| CN1585188A (en) * | 2003-08-23 | 2005-02-23 | Kmw株式会社 | Variable radio frequency band filter |
| CN203260698U (en) * | 2013-04-16 | 2013-10-30 | 深圳光启创新技术有限公司 | Cavity filter |
| CN205303633U (en) * | 2015-12-28 | 2016-06-08 | 范学超 | Filter |
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| Publication number | Publication date |
|---|---|
| CN105390781B (en) | 2017-11-14 |
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