CN206098631U - Cross coupling structure of coaxial cavity wide band wave filter - Google Patents
Cross coupling structure of coaxial cavity wide band wave filter Download PDFInfo
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- CN206098631U CN206098631U CN201621041469.0U CN201621041469U CN206098631U CN 206098631 U CN206098631 U CN 206098631U CN 201621041469 U CN201621041469 U CN 201621041469U CN 206098631 U CN206098631 U CN 206098631U
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- tuning screw
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- accommodating cavity
- wide band
- coupling structure
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Abstract
The utility model discloses a cross coupling structure of coaxial cavity wide band wave filter, including syntonizer holding chamber, resonance bar and tuning screw rod, resonance bar has a plurality ofly, and the holding is equipped with the hollow storage tank at syntonizer holding intracavity, resonance bar's top respectively, and tuning screw rod inserts the storage tank internal fixation, and the central point in syntonizer holding chamber puts, is provided with harmonious dish, has also inserted tuning screw rod on the harmonious dish. The utility model discloses central point in syntonizer holding chamber puts and is provided with the harmonious dish that has tuning screw rod, has also inserted tuning screw rod on each resonance bar, through adjusting the tuning screw rod male degree of depth, and the power of the coupling volume between the resonance bar of adjusting, simple structure has reduced the degree of difficulty of wave filter debugging to improve the efficiency of debugging, and set up the strengthening rib, guaranteed the intensity and the life -span of abominable mould, also improved the performance of wave filter when having reduced the assembly risk.
Description
Technical field
The utility model is related to wireless communication technology field, more particularly to a kind of coaxial cavity wide band filter cross-couplings
Structure.
Background technology
Along with modern wireless telecommunications, the development of communication relevant industries, RF resources are more and more nervous, various systems
The frequency range that the communication system of formula is used becomes closer to, it is easy to disturbs the communication system of adjacent frequency band and prevents it from normal work
Make, so as to put forward higher requirement to communication system.Communication system is each in system in order to strengthen the suppression to adjacent frequency band
The inhibition of individual part all has much room for improvement, for the wave filter, duplexer and the combining that act primarily as inhibitory action in a communications system
The requirement of device is just higher.
In for the exploitation design process of coaxial cavity wide band filter, due to the coupling amount that the requirement of passband width needs
Larger, the coupling window size of wave filter also needs to increase relatively, but because the restriction of cavity profile cannot be increased infinitely so humorous
The coupling shaken between device needs to strengthen by other methods, and common method is to increase coupling muscle between resonator；For needs
Increase that situation for perceptual cross-linked situation is increasingly complex, it is stronger inductive coupled due to being required between three resonators,
Coupling window is size-constrained even more serious, and the higher coupling muscle of height not only can be increased between three resonators to be caused to debug space
It is too small（Increase debugging difficulty and uniformity is poor）, filter Q deteriorates, resonant frequency uprises（Deteriorate performance of filter）Outward
The isolated island of a confinement cover screw can be also formed between three resonators, herein because material filling is difficult, intensity is poor
Die life can be shortened and be easily broken off when screw is installed, risk cost is very big.
Utility model content
For weak point present in above-mentioned technology, the utility model provides a kind of simple structure, easy to process, material
It is few, the cross coupling structure of the coaxial cavity wide band filter easily debugged.
For achieving the above object, the utility model provides a kind of cross coupling structure of coaxial cavity wide band filter, bag
Resonator accommodating cavity, resonant rod and tuning screw are included, the resonant rod has multiple, and are respectively contained in resonator accommodating cavity,
Hollow storage tank is provided with the top of the resonant rod, fixed in the tuning screw insertion storage tank, the resonator is housed
The center in chamber, is provided with tuning disk, and on the tuning disk tuning screw is also inserted with.
Wherein, three resonant rods are provided with described each resonator accommodating cavity, and equidistant intervals be triangularly arranged,
Tuning disk is arranged on the center of resonant rod, and tuning screw has been all inserted on each resonant rod, also is provided with adjusting on tuning disk
Humorous screw rod.
Wherein, still there is reinforcement in the resonator accommodating cavity, the reinforcement holds the tuning disk and resonator
The cavity wall for putting chamber links together.
Wherein, the reinforcement has three, angularly arranges respectively, and each resonant rod is separated.
Wherein, the tuning screw is fixed by helicitic texture or welding manner.
Wherein, the resonator accommodating cavity is made up of metal material, and the resonator accommodating cavity includes base and cover plate, institute
State cover plate to fix by buckle structure with base.
Wherein, projection is additionally provided with the center of resonator accommodating cavity, the projection is also hollow-core construction, the tune
Humorous disk is fixed on projection top, and the tuning disk is provided with and inserts fixed through hole for tuning screw, and the tuning screw passes through
In the through hole insertion hollow-core construction.
The beneficial effects of the utility model are：Compared with prior art, the utility model is at the center of resonator accommodating cavity
Position is provided with the tuning disk with tuning screw, and on each resonant rod tuning screw has been also inserted into, by adjusting tuning screw
Adjusting the power of the coupling amount between resonant rod, simple structure reduces the difficulty of wave filter debugging to the depth of insertion, from
And the efficiency of debugging is improve, and reinforcement is set, it is ensured that the intensity of severe mould and life-span, while reducing assembling risk
Also improve the performance of wave filter.
Description of the drawings
Fig. 1 is a kind of cross coupling structure structural representation of coaxial cavity wide band filter of the utility model embodiment
Figure.
Main element symbol description is as follows：
1st, resonator accommodating cavity 2, resonant rod
3rd, tuning screw 4, reinforcement
5th, disk 21, storage tank is tuned.
Specific embodiment
In order to more clearly state the utility model, the utility model is further described below in conjunction with the accompanying drawings.
Fig. 1 is referred to, the utility model provides a kind of cross coupling structure of coaxial cavity wide band filter, including resonance
Device accommodating cavity 1, resonant rod 2 and tuning screw 3, resonant rod 2 has multiple, and is respectively contained in resonator accommodating cavity 1, resonant rod
2 top is provided with hollow storage tank 21, fixed, the centre bit of resonator accommodating cavity 1 in the insertion storage tank 21 of tuning screw 3
Put, be provided with tuning disk 5, on tuning disk 5 tuning screw 3 is also inserted with.
Compared with prior art, the utility model is provided with tuning screw in the center of resonator accommodating cavity
Tuning disk, be also inserted into tuning screw on each resonant rod, by adjust tuning screw insertion depth come adjust resonant rod it
Between coupling amount power, simple structure, reduce wave filter debugging difficulty, so as to improve the efficiency of debugging.
In the present embodiment, three resonant rods 2 are provided with each resonator accommodating cavity, three resonant rods 2 are respectively at equal intervals
Be contained in resonator accommodating cavity 1, in the present embodiment, by taking a resonator accommodating cavity 1 as an example, the resonator accommodating cavity 1
In three lobe body structures, three resonant rods 2 are individually contained in each lobe cavity body, and the distance between three resonant rods 2 phase
Deng, and in the centre position of three resonant rods 2, tuning disk 5 being provided with, the centre position of three resonant rods 2 is also exactly resonance
The center of device accommodating cavity 1, in the center of resonator accommodating cavity 1 projection is additionally provided with（It is not shown）, projection is also sky
Core structure, tuning disk 5 is fixed on projection top, tunes disk 5 and is provided with the through hole that fixation is inserted for tuning screw 3, tuning screw 3
Inserted in hollow-core construction by through hole, so, on tuning disk 5 and on three resonant rods 2 tuning screw 3 is both provided with, this
A little tuning screws 3 are threadedly fixed, therefore by knob tuning screw 3 can be made to be inserted more deeply into through hole or storage tank
In 21, then the fixed form of tuning screw of the present utility model 3 is not limited to engagement thread, can also be other structures,
When the size of the coupling amount required for resonator is to fix, then each tuning screw 3 can be consolidated by welding manner
It is fixed, to avoid becoming the coupling amount between resonant rod 2 because of the motion of whole tuner or the loosening of tuning screw 3
Change.
In the present embodiment, in order to ensure the intensity and service life of whole resonator, in resonator accommodating cavity 1 also
Reinforcement 4 is provided with, the reinforcement 4 there are three, and equal one end is connected and tunes the projection of disk 5, and the other end is housed with resonator
Three resonant rods 2 are separated respectively, also correspond to for resonator accommodating cavity 1 to be divided into three by the cavity wall connection in chamber, three reinforcements
Lobe body structure.
In the present embodiment, resonator accommodating cavity 1 is made up of metal material, and resonator accommodating cavity 1 includes base and cover plate
（It is not shown）, cover plate fixed with base by buckle structure, such mode, more traditional is screwed, and more saves material
Material, and dismantle and install more convenient, be conducive to improving the efficiency of debugging or maintenance conditions.
Advantage of the present utility model is：
1）The utility model eliminates the isolated island structure of prior art by the reinforcement between resonator, arranges three resonance
The component of bar and a tuning disk, by adjusting the depth of tuning screw insertion the strong of the coupling amount between resonant rod is adjusted
Weak, simple structure saves Material Cost, the difficulty of wave filter debugging is reduced, so as to improve the efficiency of debugging；
2）Reinforcement is set, it is ensured that the intensity of severe mould and life-span, while reducing assembling risk filter is also improved
The performance of ripple device；Enhance the intensity of resonator, extend service life；
3）Cover plate is fixed with base by buckle structure, such mode, more traditional is screwed, and more saves
Material, and dismantle and install more convenient, be conducive to improving the efficiency of debugging or maintenance conditions.
Disclosed above is only several specific embodiments of the present utility model, but the utility model is not limited to this,
The changes that any person skilled in the art can think of should all fall into protection domain of the present utility model.
Claims (7)
1. a kind of cross coupling structure of coaxial cavity wide band filter, it is characterised in that including resonator accommodating cavity, resonant rod
And tuning screw, the resonant rod has multiple, and is respectively contained in resonator accommodating cavity, and at the top of the resonant rod sky is provided with
The storage tank of the heart, fixed in the tuning screw insertion storage tank, the center of the resonator accommodating cavity is provided with tuning
Disk, on the tuning disk tuning screw is also inserted with.
2. the cross coupling structure of a kind of coaxial cavity wide band filter according to claim 1, it is characterised in that described
Be provided with three resonant rods in each resonator accommodating cavity, and equidistant intervals be triangularly arranged, tuning disk is arranged on resonance
Tuning screw is all inserted on the center of bar, and each resonant rod, on tuning disk tuning screw also has been provided with.
3. the cross coupling structure of a kind of coaxial cavity wide band filter according to claim 1, it is characterised in that described
Still there is reinforcement in resonator accommodating cavity, the reinforcement is connected to the tuning disk with the cavity wall of resonator accommodating cavity
Together.
4. the cross coupling structure of a kind of coaxial cavity wide band filter according to claim 3, it is characterised in that described
Reinforcement has three, angularly arranges respectively, and each resonant rod is separated.
5. the cross coupling structure of a kind of coaxial cavity wide band filter according to claim 1, it is characterised in that described
Tuning screw is fixed by helicitic texture or welding manner.
6. the cross coupling structure of a kind of coaxial cavity wide band filter according to claim 1, it is characterised in that described
Resonator accommodating cavity is made up of metal material, and the resonator accommodating cavity includes base and cover plate, and the cover plate passes through with base
Buckle structure is fixed.
7. the cross coupling structure of a kind of coaxial cavity wide band filter according to claim 1, it is characterised in that humorous
The shake center of device accommodating cavity is additionally provided with projection, and the projection is hollow-core construction, and the tuning disk is fixed on projection top,
The tuning disk is provided with and inserts fixed through hole for tuning screw, and the tuning screw inserts hollow-core construction by the through hole
In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621041469.0U CN206098631U (en) | 2016-09-07 | 2016-09-07 | Cross coupling structure of coaxial cavity wide band wave filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621041469.0U CN206098631U (en) | 2016-09-07 | 2016-09-07 | Cross coupling structure of coaxial cavity wide band wave filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206098631U true CN206098631U (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621041469.0U Active CN206098631U (en) | 2016-09-07 | 2016-09-07 | Cross coupling structure of coaxial cavity wide band wave filter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019228072A1 (en) * | 2018-05-29 | 2019-12-05 | 华为技术有限公司 | Filter coupling structure and processing method |
| CN110837722A (en) * | 2019-11-13 | 2020-02-25 | 中国船舶重工集团公司第七二四研究所 | Design method of high-power microwave transceiving front-end circuit |
-
2016
- 2016-09-07 CN CN201621041469.0U patent/CN206098631U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019228072A1 (en) * | 2018-05-29 | 2019-12-05 | 华为技术有限公司 | Filter coupling structure and processing method |
| US11239536B2 (en) | 2018-05-29 | 2022-02-01 | Huawei Technologies Co., Ltd. | Coupling structure of filter and processing method |
| CN110837722A (en) * | 2019-11-13 | 2020-02-25 | 中国船舶重工集团公司第七二四研究所 | Design method of high-power microwave transceiving front-end circuit |
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