CN106207338A - A kind of adjustable cavity body filter - Google Patents
A kind of adjustable cavity body filter Download PDFInfo
- Publication number
- CN106207338A CN106207338A CN201610779430.7A CN201610779430A CN106207338A CN 106207338 A CN106207338 A CN 106207338A CN 201610779430 A CN201610779430 A CN 201610779430A CN 106207338 A CN106207338 A CN 106207338A
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- China
- Prior art keywords
- plate
- filter
- harmonic oscillator
- cavity body
- housing
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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 present invention relates to a kind of adjustable cavity body filter, belong to wireless communications application field, a kind of adjustable cavity body filter, including body and device for adjusting wall thickness, described wave filter regulates the tuning surplus coordinated with harmonic oscillator by tuning screw, harmonic oscillator also is able to move left and right, increase with tuning screw coordinate scope, it is ensured that tuning surplus while, housing chamber reduces deeply, reduce filter size, improve the suitability of wave filter；Meanwhile, by the device for adjusting wall thickness installed on body, according to the actual requirements plate is inserted or pull out plate seat, realize the regulation to wave filter wall thickness, it is ensured that preferably wave transparent characteristic or cut-off characteristics, it is achieved that the multi-frequency of device selects demand, save cost, improve product utilization rate.
Description
Technical field
The present invention relates to a kind of wave filter, particularly relate to a kind of adjustable cavity body filter, belong to wireless communications application
Field.
Background technology
Existing wave filter uses single cavity body structure, and chamber is done little deeply, and tuning screw is fixing on the cover board by nut, by humorous
Oscillator is inserted as mold insert in the die casting of housing, is then cast into high temperature metal liquid, along with the cooling of high temperature metal liquid
Solidification, harmonic oscillator just combines with cavity, it is achieved fixing of harmonic oscillator.Filter construction does little in the chamber of wave filter deeply
On the basis of, the scope that tuning screw moves left and right can be increased, thus improve the tuning surplus of wave filter, it also avoid sparking
The generation of phenomenon.But, by chamber, deep and self bar length and installation dimension requirement are limited the scope that moves left and right of tuning screw so that
The tuning surplus that tuning screw coordinates with harmonic oscillator is limited, and tuning utilization rate is low.
It addition, filtering material relevant to electromagnetism in wireless communication field, need certain mechanical strength on the one hand
Protect the objects such as antenna therein, ensure that the electromagnetism wave energy high efficiency of working frequency range penetrates the most again, so that should
Filtering material can play the effect of protection equipment, does not the most affect the characteristic of electromagnetic transmission simultaneously.In order to can guarantee that electromagnetic wave
Efficiently penetrate, existing technical scheme typically uses half-wavelength theory to carry out material thickness design.Single General Physics material
Material generally utilizes half-wavelength or quarter-wave theoretical, corresponding to different frequencies, changes thickness, reaches to regulate it to electromagnetism
The effect of the wave transparent response of ripple.More specifically, it is said that in general, material thickness is working frequency range electromagnetic wavelength 1/2 time, electricity
Magnetic wave penetrance reaches optimal value.But from the above, it can be seen that for guarantee certain wave transparent performance, above-mentioned filtering material
Thickness be typically subject to the restriction of wave transparent performance requirement, this will cause material thickness on the low side or higher, and finished-product material thickness
Fixing, with strong points, but the most single.
Summary of the invention
The deficiency that the present invention exists for prior art just, it is provided that a kind of adjustable cavity body filter.
For solving the problems referred to above, the technical solution used in the present invention is as follows:
A kind of adjustable cavity body filter, including body and device for adjusting wall thickness, described body include housing, tuning screw,
Harmonic oscillator and conductive layer, adjusting screw rod inserts housing side outer wall, and harmonic oscillator is arranged in housing cavity, and is positioned at tuning screw
Respective side, tuning screw can insert in harmonic oscillator inner chamber, and conductive layer is arranged in harmonic oscillator inner chamber；
On described casing of filter outer wall, harmonic oscillator installed position has screwed hole, and harmonic oscillator is cylindrical, and its one end has
Inner chamber, the other end has screw thread, and thread head connection has cylindrical big end, and harmonic oscillator screws in screwed hole；
The housing corner of described body is mounted with device for adjusting wall thickness, and its direction is parallel with adjusting screw rod, and described wall thickness is adjusted
Regulating device includes plate seat, slot and plate, plate seat generally upright post type, and its adjacent two side contacted with housing is provided with slotting
Groove, the through whole plate seat of slot, and the slot horizontal alignment on adjacent plate seat, plate is arranged in slot.
Further, described housing uses the combined and spliced composition of sheet metal facilitating installing/dismounting.
Further, described plate is sheet metal, and thickness is 1 ~ 3 millimeter.
Further, the elastic insulated rubber that described slot is installed for convenience of plate is made.
Further, described inserting board enters hand-held side and is provided with the projection facilitating installing/dismounting.
Compared with prior art, the implementation result of the present invention is as follows for the present invention:
The adjustable cavity body filter of one of the present invention, more than the tuning that tuning screw regulation coordinates with harmonic oscillator
Amount, harmonic oscillator also is able to move left and right, increase with tuning screw coordinate scope, it is ensured that tuning surplus while, housing chamber
Deep reduction, reduces filter size, improves the suitability of wave filter；Meanwhile, by the wall thickness regulation dress installed on body
Put, according to the actual requirements plate is inserted or pull out plate seat, it is achieved the regulation to wave filter wall thickness, it is ensured that preferably wave transparent is special
Property or cut-off characteristics, it is achieved that the multi-frequency of device selects demand, has saved cost, has improve product utilization rate.
Accompanying drawing explanation
Fig. 1 is the adjustable cavity body filter structural representation of the one shown in the present invention；
Fig. 2 is the A direction view of Fig. 1；
Fig. 3 is the B direction view of Fig. 1；
Fig. 4 is board plug structure schematic diagram.
Wherein, 10 bodies, 11 housings, 12 tuning screws, 13 harmonic oscillators, 14 conductive layers, 15 screw threads,
16 big ends, 20 device for adjusting wall thickness, 21 plate seats, 22 slots, 23 plates, 24 projections.
Detailed description of the invention
Present disclosure is described below in conjunction with specific embodiments.
As shown in Figure 1, Figure 2 and Figure 3, a kind of adjustable cavity body filter schematic diagram, regulate including body 10 and wall thickness
Device 20, described body includes housing 11, tuning screw 12, harmonic oscillator 13 and conductive layer 14, and adjusting screw rod 12 inserts housing 11
Side outer wall, harmonic oscillator 13 is arranged in housing 11 inner chamber, and is positioned at tuning screw 12 respective side, and tuning screw 12 can insert humorous
In oscillator 13 inner chamber, conductive layer 14 is arranged in harmonic oscillator 13 inner chamber；On described casing of filter 11 outer wall, harmonic oscillator 13 is installed
Position has screwed hole, and harmonic oscillator 13 is cylindrical, and its one end has inner chamber, and the other end has screw thread 15, and screw thread 15 end
Portion connects cylindrical big end 16, and harmonic oscillator 13 screws in screwed hole；Described wave filter regulates not only by tuning screw 12
The tuning surplus coordinated with harmonic oscillator 13, harmonic oscillator 13 also is able to move left and right, increase with tuning screw 12 coordinate scope,
While ensureing tuning surplus, housing 11 chamber is deep, the size of tuning screw 12 and wave filter all reduces, and improves the suitable of wave filter
By property, reduce production cost.
The housing of described body 10 11 4 jiaos is mounted with device for adjusting wall thickness 20, and its direction is flat with adjusting screw rod 12
OK, described device for adjusting wall thickness 20 includes plate seat 21, slot 22 and plate 23, plate seat 21 generally upright post type, itself and shell
The adjacent two side of body 11 contact is provided with slot 22, the through whole plate seat 21 of slot 22, and inserting on adjacent plate seat 21
Groove 22 horizontal alignment, plate 23 is arranged in slot.By the device for adjusting wall thickness 20 installed on body 10, according to the actual requirements
Plate 23 is inserted or pull out plate seat 21, it is achieved the regulation to wave filter wall thickness, it is ensured that preferably wave transparent characteristic or cut-off spy
Property, it is achieved that the multi-frequency of device selects demand, has saved cost, has improve product utilization rate.
Described housing 11 uses and facilitates the combined and spliced composition of sheet metal of installing/dismounting, easy for installation, it is to avoid casting
The complexity of moulding process, while using metallic plate to ensure that wave filter mechanical strength, also acts electromagnetic shielding simultaneously
Effect, improves the work quality of wave filter.
Described plate 23 is sheet metal, and thickness is 1 ~ 3 millimeter, selects the plate 23 of respective thickness according to wavelength, inserts
In slot 22, it is achieved preferred to electromagnetic wave.
The elastic insulated rubber that described slot 22 is installed for convenience of plate 23 is made, and while alleviating wave filter weight, protects
The plate 23 that card inserts in slot 22 is fixed, does not gets loose.
As shown in Figure 4, described plate 23 inserts hand-held side and is provided with the projection 24 facilitating installing/dismounting, plays the spacing work of insertion
While with, prevent plate 23 from getting loose.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (5)
1. an adjustable cavity body filter, including body (10) and device for adjusting wall thickness (20), described body includes housing
(11), tuning screw (12), harmonic oscillator (13) and conductive layer (14), adjusting screw rod (12) inserts housing (11) side outer wall, humorous
Oscillator (13) is arranged in housing (11) inner chamber, and is positioned at tuning screw (12) respective side, and tuning screw (12) can insert resonance
In son (13) inner chamber, conductive layer (14) is arranged in harmonic oscillator (13) inner chamber；
It is characterized in that, on described casing of filter (11) outer wall, harmonic oscillator (13) installed position has screwed hole, harmonic oscillator
(13) being cylindrical, its one end has inner chamber, and the other end has screw thread (15), and the connection of screw thread (15) end has cylindrical big end
Portion (16), harmonic oscillator (13) screws in screwed hole；
Housing (11) corner of described body (10) is mounted with device for adjusting wall thickness (20), its direction and adjusting screw rod (12)
Parallel, described device for adjusting wall thickness (20) includes plate seat (21), slot (22) and plate (23), and plate seat (21) is the most vertical
Column type, its adjacent two side contacted with housing (11) is provided with slot (22), the through whole plate seat (21) of slot (22), and phase
Adjacent slot (22) horizontal alignment on plate seat (21), plate (23) is arranged in slot.
A kind of adjustable cavity body filter the most as claimed in claim 1, is characterized in that, described housing (11) uses convenient installation
The combined and spliced composition of sheet metal of dismounting.
A kind of adjustable cavity body filter the most as claimed in claim 1, is characterized in that, described plate (23) is sheet metal,
Thickness is 1 ~ 3 millimeter.
A kind of adjustable cavity body filter the most as claimed in claim 2, is characterized in that, described slot (22) is for convenience of plate
(23) the elastic insulated rubber installed is made.
A kind of adjustable cavity body filter the most as claimed in claim 1 or 2, is characterized in that, described plate (23) inserts hand-held
Side is provided with the projection (24) facilitating installing/dismounting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610779430.7A CN106207338A (en) | 2016-08-31 | 2016-08-31 | A kind of adjustable cavity body filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610779430.7A CN106207338A (en) | 2016-08-31 | 2016-08-31 | A kind of adjustable cavity body filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106207338A true CN106207338A (en) | 2016-12-07 |
Family
ID=58085931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610779430.7A Pending CN106207338A (en) | 2016-08-31 | 2016-08-31 | A kind of adjustable cavity body filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106207338A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216839A (en) * | 2018-09-28 | 2019-01-15 | 西南应用磁学研究所 | A kind of interdigital ceramic tube medium cavity body filter of novel miniaturization |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1024568C (en) * | 1992-06-06 | 1994-05-18 | 第一汽车制造厂热处理厂 | Method and apparatus for control of carbon in continuous dripping carburizing furnace |
| CN203260700U (en) * | 2013-04-16 | 2013-10-30 | 深圳光启创新技术有限公司 | Cavity filter |
| CN204303957U (en) * | 2015-01-09 | 2015-04-29 | 旭光（赣州）电子有限公司 | A kind of cavity body filter |
-
2016
- 2016-08-31 CN CN201610779430.7A patent/CN106207338A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1024568C (en) * | 1992-06-06 | 1994-05-18 | 第一汽车制造厂热处理厂 | Method and apparatus for control of carbon in continuous dripping carburizing furnace |
| CN203260700U (en) * | 2013-04-16 | 2013-10-30 | 深圳光启创新技术有限公司 | Cavity filter |
| CN204303957U (en) * | 2015-01-09 | 2015-04-29 | 旭光（赣州）电子有限公司 | A kind of cavity body filter |
Non-Patent Citations (1)
| Title |
|---|
| 严济慈: "《中国科学技术大学建校初期著名科学家教学史料丛编 电磁学》", 30 September 2013 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216839A (en) * | 2018-09-28 | 2019-01-15 | 西南应用磁学研究所 | A kind of interdigital ceramic tube medium cavity body filter of novel miniaturization |
| CN109216839B (en) * | 2018-09-28 | 2024-03-22 | 西南应用磁学研究所 | Novel miniaturized interdigital ceramic tube medium cavity filter |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |