CN106025468A - Ceramic cavity filter - Google Patents
Ceramic cavity filter Download PDFInfo
- Publication number
- CN106025468A CN106025468A CN201610540804.XA CN201610540804A CN106025468A CN 106025468 A CN106025468 A CN 106025468A CN 201610540804 A CN201610540804 A CN 201610540804A CN 106025468 A CN106025468 A CN 106025468A
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- CN
- China
- Prior art keywords
- cavity
- coupling
- hole
- cover plate
- ceramic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- H01P1/212—Frequency-selective devices, e.g. filters suppressing or attenuating harmonic frequencies
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention provides a ceramic cavity filter which comprises a cavity, a cover plate, resonator tuning screws and coupling tuning screws. The cover plate is arranged above the cavity and is coupled to the cavity. A number of resonance holes are arranged in the cavity at intervals, and a coupling hole is arranged in the upper part of a space between two adjacent resonance holes. The resonator tuning screws pass through the cover plate and stretch into the resonance holes. The coupling tuning screws pass through the cover plate and stretch into the coupling holes. Input and output electrode holes are arranged in two opposite sides of the cavity. Adapters are welded in input and output electrode holes to connect input and output electrodes and a resonant cavity. By adjusting the depth of the resonator tuning screws in the resonance holes, frequency is adjusted. Power loss is effectively prevented. Isolation and harmonic characteristics are improved. By adjusting the depth of the coupling tuning screws in the coupling holes, coupling volume is adjusted to debug bandwidth.
Description
Technical field
The present invention relates to a kind of wave filter, particularly relate to a kind of ceramic cavity wave filter.
Background technology
Ceramic Dielectric Filter is mainly used in microwave telecommunication system, and it can obtain required frequency model effectively
Enclose, but existing dielectric filter power is typically 20～30W, and isolation is up to harmonic characterisitic
60dB, but, the most crowded along with communications band, performance of filter is required more and more higher, medium is filtered
Ripple device power is low, capacity of resisting disturbance is not enough will be the most obvious.
Summary of the invention
The present invention is to solve technical problem set forth above, proposes a kind of ceramic cavity wave filter, possesses
High power and isolation and the excellent advantage of harmonic characterisitic.
The present invention is achieved in that a kind of ceramic cavity wave filter, adjusts including cavity, cover plate, resonator
Humorous screw and coupling tuning screw.
Described cover plate is located at above described cavity, and is combined with described cavity.
Being interval with multiple resonance hole on described cavity, the top part between every two adjacent resonance holes is provided with coupling
Closing hole, described resonator tuning screw stretches in described resonance hole through described cover plate, described coupling tuning spiral shell
Nail stretches in described coupling aperture through described cover plate.
Two opposite flanks of described cavity are provided with input and output electrode hole, by welding in input and output electrode hole
Switch through joint to be connected with resonator cavity by input and output electrode.
Preferably: the shell of described cavity uses the silver-plated material of aluminium alloy outer layer.
Preferably: the surface in described resonance hole is ceramic material.
Further: the lower portion between every two adjacent resonance holes offers groove.
Preferably: described resonance hole is arranged in running through described cavity.
Preferably: described coupling aperture is formed from the middle part upward opening in described housing depth direction, its hole higher primary school
High in the hole in described resonance hole.
Preferably, the material of described resonator tuning screw and coupling tuning screw is that metal outer is gold-plated.
The described ceramic cavity wave filter that the present invention provides stretches into resonance hole by regulation resonator tuning screw
The degree of depth reaches the purpose of regulating frequency, effectively prevent power loss, improves isolation and harmonic characterisitic；Logical
Overregulate coupling tuning screw to stretch into the degree of depth of coupling aperture and reach to adjust coupling amount thus debug bandwidth.
Accompanying drawing explanation
Fig. 1 is the front section view of the present invention；
Fig. 2 is the sectional view of Inner Constitution of the present invention；
Fig. 3 is the side-looking electrode figure of the present invention；
Fig. 4 is the schematic diagram of the present invention；
Fig. 5 is the electrical characteristics curve chart of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
Seeing also Fig. 1, Fig. 2 and Fig. 3, described ceramic cavity wave filter includes cavity, cover plate 5, humorous
Shake device tuning screw and coupling tuning screw.
Described cover plate 5 is located at above described cavity, and is combined with described cavity.
Being interval with multiple resonance hole 2 on described cavity, the top part between every two adjacent resonance holes 2 sets
Having coupling aperture 3, described resonator tuning screw stretches in described resonance hole 2 through described cover plate 5, described
Coupling tuning screw stretches in described coupling aperture 3 through described cover plate 5.
Described resonance hole 2 is arranged in running through described cavity；Described coupling aperture 3 is from described housing depth direction
Middle part upward opening is formed, and its hole higher primary school is high in the hole in described resonance hole 2.
Two opposite flanks 6 of described cavity are provided with input and output electrode hole 1, by input and output electrode hole 1
Input and output electrode is connected by interior welding adaptor with resonator cavity.
Lower portion between every two adjacent resonance holes 2 offers groove 4, and described groove 4 can effectively intercept
And reduce coupling amount.
The shell of described cavity uses the silver-plated material of aluminium alloy outer layer；Described cover plate 5 and described resonance hole 2
Surface is ceramic material.
The material of described resonator tuning screw and coupling tuning screw is that metal outer is gold-plated.
Its circuit theory refers to Fig. 4, and the degree of depth being stretched into resonance hole by regulation resonator tuning screw is reached
The purpose of regulating frequency, effectively prevent power loss, improves isolation and harmonic characterisitic；By regulation coupling
Close tuning screw to stretch into the degree of depth of coupling aperture and reach to adjust coupling amount thus debug bandwidth, through overtesting, please join
Read Fig. 5, the power of the described ceramic cavity wave filter high power up to 60W and the isolation characteristic of about 90dB
And harmonic characterisitic, capacity of resisting disturbance is higher.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.
Claims (7)
1. a ceramic cavity wave filter, including cavity, cover plate, resonator tuning screw and coupling tuning spiral shell
Nail, it is characterised in that:
Described cover plate is located at above described cavity, and is combined with described cavity；
Being interval with multiple resonance hole on described cavity, the top part between every two adjacent resonance holes is provided with coupling
Closing hole, described resonator tuning screw stretches in described resonance hole through described cover plate, described coupling tuning spiral shell
Nail stretches in described coupling aperture through described cover plate；
Two opposite flanks of described cavity are provided with input and output electrode hole, by welding in input and output electrode hole
Switch through joint to be connected with resonator cavity by input and output electrode.
2. ceramic cavity wave filter as claimed in claim 1, it is characterised in that: the shell of described cavity is adopted
By the silver-plated material of aluminium alloy outer layer.
3. ceramic cavity wave filter as claimed in claim 1, it is characterised in that: the surface in described resonance hole
For ceramic material.
4. ceramic cavity wave filter as claimed in claim 1, it is characterised in that: every two adjacent resonance holes it
Between lower portion offer groove.
5. ceramic cavity wave filter as claimed in claim 1, it is characterised in that: described resonance hole is in running through
Described cavity is arranged.
6. ceramic cavity wave filter as claimed in claim 1, it is characterised in that: described coupling aperture is from described
The middle part upward opening in housing depth direction is formed, and its hole higher primary school is high in the hole in described resonance hole.
7. ceramic cavity wave filter as claimed in claim 1, it is characterised in that described resonator tuning spiral shell
The material of nail and coupling tuning screw is that metal outer is gold-plated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610540804.XA CN106025468A (en) | 2016-07-11 | 2016-07-11 | Ceramic cavity filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610540804.XA CN106025468A (en) | 2016-07-11 | 2016-07-11 | Ceramic cavity filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106025468A true CN106025468A (en) | 2016-10-12 |
Family
ID=57108437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610540804.XA Pending CN106025468A (en) | 2016-07-11 | 2016-07-11 | Ceramic cavity filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106025468A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571506A (en) * | 2016-11-09 | 2017-04-19 | 深圳三星通信技术研究有限公司 | Dielectric waveguide filter |
| CN106960994A (en) * | 2017-04-25 | 2017-07-18 | 四川省韬光通信有限公司 | A kind of dielectric filter be easy to regulating frequency and couple bandwidth |
| CN107768785A (en) * | 2016-10-24 | 2018-03-06 | 苏州艾福电子通讯有限公司 | A kind of built-in ceramic cavity body filter |
| CN108232385A (en) * | 2016-12-21 | 2018-06-29 | 昇达科技股份有限公司 | Millimeter wave filter fine tuning structure |
| CN109149025A (en) * | 2018-08-22 | 2019-01-04 | 京信通信系统（中国）有限公司 | Dielectric waveguide filter and its tuning methods |
| CN109786909A (en) * | 2019-03-15 | 2019-05-21 | 苏州市协诚五金制品有限公司 | A kind of ceramic waveguide filter |
| WO2020143814A1 (en) * | 2019-01-11 | 2020-07-16 | 华为技术有限公司 | Filter |
| JP2022518379A (en) * | 2019-01-08 | 2022-03-15 | ケーエムダブリュ・インコーポレーテッド | Waveguide filter |
| US11955680B2 (en) | 2019-01-08 | 2024-04-09 | Kmw Inc. | Waveguide filter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW423179B (en) * | 1997-03-05 | 2001-02-21 | Murata Manufacturing Co | Dielectric filter, dielectric duplexer, and method of manufacturing the same |
| US7777598B2 (en) * | 2008-04-14 | 2010-08-17 | Radio Frequency Systems, Inc. | Dielectric combine cavity filter having ceramic resonator rods suspended by polymer wedge mounting structures |
| CN102522617A (en) * | 2011-12-28 | 2012-06-27 | 上海大学 | Stepped impedance resonator (SIR) coaxial-cavity band-pass filter |
| CN103022626A (en) * | 2012-11-20 | 2013-04-03 | 深圳光启创新技术有限公司 | Harmonic oscillator, resonant cavity, filter device and electromagnetic wave equipment |
| CN205790304U (en) * | 2016-07-11 | 2016-12-07 | 苏州艾福电子通讯股份有限公司 | A kind of ceramic cavity wave filter |
-
2016
- 2016-07-11 CN CN201610540804.XA patent/CN106025468A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW423179B (en) * | 1997-03-05 | 2001-02-21 | Murata Manufacturing Co | Dielectric filter, dielectric duplexer, and method of manufacturing the same |
| US7777598B2 (en) * | 2008-04-14 | 2010-08-17 | Radio Frequency Systems, Inc. | Dielectric combine cavity filter having ceramic resonator rods suspended by polymer wedge mounting structures |
| CN102522617A (en) * | 2011-12-28 | 2012-06-27 | 上海大学 | Stepped impedance resonator (SIR) coaxial-cavity band-pass filter |
| CN103022626A (en) * | 2012-11-20 | 2013-04-03 | 深圳光启创新技术有限公司 | Harmonic oscillator, resonant cavity, filter device and electromagnetic wave equipment |
| CN205790304U (en) * | 2016-07-11 | 2016-12-07 | 苏州艾福电子通讯股份有限公司 | A kind of ceramic cavity wave filter |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768785A (en) * | 2016-10-24 | 2018-03-06 | 苏州艾福电子通讯有限公司 | A kind of built-in ceramic cavity body filter |
| CN106571506A (en) * | 2016-11-09 | 2017-04-19 | 深圳三星通信技术研究有限公司 | Dielectric waveguide filter |
| CN106571506B (en) * | 2016-11-09 | 2019-11-08 | 深圳三星通信技术研究有限公司 | A kind of dielectric waveguide filter |
| CN108232385A (en) * | 2016-12-21 | 2018-06-29 | 昇达科技股份有限公司 | Millimeter wave filter fine tuning structure |
| CN106960994A (en) * | 2017-04-25 | 2017-07-18 | 四川省韬光通信有限公司 | A kind of dielectric filter be easy to regulating frequency and couple bandwidth |
| CN109149025A (en) * | 2018-08-22 | 2019-01-04 | 京信通信系统（中国）有限公司 | Dielectric waveguide filter and its tuning methods |
| JP2022518379A (en) * | 2019-01-08 | 2022-03-15 | ケーエムダブリュ・インコーポレーテッド | Waveguide filter |
| JP7213992B2 (en) | 2019-01-08 | 2023-01-27 | ケーエムダブリュ・インコーポレーテッド | waveguide filter |
| US11955680B2 (en) | 2019-01-08 | 2024-04-09 | Kmw Inc. | Waveguide filter |
| WO2020143814A1 (en) * | 2019-01-11 | 2020-07-16 | 华为技术有限公司 | Filter |
| CN109786909A (en) * | 2019-03-15 | 2019-05-21 | 苏州市协诚五金制品有限公司 | A kind of ceramic waveguide filter |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
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| RJ01 | Rejection of invention patent application after publication |