CN107768785A - A kind of built-in ceramic cavity body filter - Google Patents
A kind of built-in ceramic cavity body filter Download PDFInfo
- Publication number
- CN107768785A CN107768785A CN201711001442.8A CN201711001442A CN107768785A CN 107768785 A CN107768785 A CN 107768785A CN 201711001442 A CN201711001442 A CN 201711001442A CN 107768785 A CN107768785 A CN 107768785A
- Authority
- CN
- China
- Prior art keywords
- ceramic
- resonator
- cavity
- built
- ceramic block
- 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.)
- Pending
Links
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
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
-
- 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
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
- H01P1/2084—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure with dielectric resonators
-
- 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
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
- H01P1/2138—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using hollow waveguide filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/10—Dielectric resonators
Abstract
The invention discloses a kind of built-in ceramic cavity body filter, and it includes n resonator, a ceramic block, a metallic cavity.N is not less than 2.Resonator is housed in metallic cavity by being embedded in ceramic block；The wave filter offers 1 coupling aperture in n resonance hole and n.Each resonance hole penetrates ceramic block from the top surface of metallic cavity and extended into corresponding resonator, and each coupling aperture is extended into ceramic block and between two neighboring resonator from the top surface of metallic cavity.Adjustable frequency of the present invention simultaneously possesses enclosed cavity body structure using resonator to embody, improve the irrealizable suppression difference of existing ceramic filter institute and interfere with each other and be lost the problem of big between signal, loss is accomplished minimum by the present invention using the form of resonator insertion, improve performance, and Qu values are higher by 1.5~2 times than ceramic filter；There is miniaturization, light weight than cavity body filter simultaneously.
Description
Technical field
The present invention relates to a kind of wave filter, more particularly to a kind of built-in ceramic cavity body filter.
Background technology
Ceramic Dielectric Filter is mainly used in microwave telecommunication system, and it can effectively obtain required frequency range, but
Its shortcoming is that low-frequency range suppresses poor, is lost greatly, and its power only has 1~30W.The cavity body filter of another base station at present has height
Power, high the advantages of suppressing, but cavity body filter volume itself is big, weight is heavy and difficult the shortcomings that making.
The content of the invention
To solve the defects of background technology, the present invention provides a kind of built-in ceramic cavity body filter.
The present invention solution be：A kind of built-in ceramic cavity body filter, it includes n resonator, a ceramics
Block, a metallic cavity；N is not less than 2；Resonator is housed in metallic cavity by being embedded in ceramic block；The filtering
Device offers n resonance hole and n-1 coupling aperture；Each resonance hole penetrates ceramic block from the top surface of metallic cavity and extends into phase
In the resonator answered, each coupling aperture extended into from the top surface of metallic cavity in ceramic block and positioned at two neighboring resonator it
Between.
As the further improvement of such scheme, resonator by the bottom surface of ceramic block insert ceramic block resonance bore region and
It is embedded in ceramic block, ceramic block is connected with metallic cavity again, and the top surface of ceramic block is fitted in the cavity wall of metallic cavity.
Preferably, for ceramic block, surrounding, top surface and the corresponding wall portion in resonance hole of ceramic block, coupling aperture
Corresponding wall portion is without silver layer.
More preferably, there is silver layer on the bottom surface of ceramic block.
As the further improvement of such scheme, resonator is silver-plated form, and there is silver layer covering on periphery.
As the further improvement of such scheme, the wave filter also includes some debugging screws, each resonance hole and every
A debugging screw is respectively mounted in individual coupling aperture.
Preferably, debug direction of the screw from metallic cavity towards resonator and be arranged on corresponding resonance hole and coupling aperture
It is interior.
As the further improvement of such scheme, the wave filter is further opened with two electrode holes, and two electrode holes are from gold
The opposite sides of category cavity is opened up and each extended over into ceramic block and the corresponding resonator adjacent to metallic cavity in opposite directions respectively
It is interior.
Preferably, the wave filter also includes two adapters being respectively inserted into two electrode holes.
More preferably, each adapter is furnished with two PIN needles and two limit PIN needles；Two limit PIN needles are inserted respectively
In the region of the electrode hole of corresponding resonator, PIN needle is connected with limit PIN needle, and adapter inserts in metallic cavity and PIN needle
It is connected.
Adjustable frequency of the present invention simultaneously possesses enclosed cavity body structure using resonator to embody, and improves existing ceramic filtering
Ripple device institute is irrealizable to be suppressed mutually to disturb and be lost the problem of big between difference and signal, and the present invention utilizes the shape of resonator insertion
Loss is accomplished minimum by formula, improves performance, and Qu values are higher by 1.5~2 times than ceramic filter；Have simultaneously than cavity body filter
There is the features such as miniaturization, light weight.
Brief description of the drawings
Fig. 1 is the perspective exploded view for the built-in ceramic cavity body filter that the present invention provides embodiment 1.
Fig. 2 is Fig. 1 phantom.
Fig. 3 and Fig. 4 is the performance plot of the present invention.
Fig. 5 is the perspective exploded view for the built-in ceramic cavity body filter that the present invention provides embodiment 2.
Fig. 6 is Fig. 5 phantom.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The present invention is on mobile communication base station equipment, the frequency of needs is passed through in high-frequency communication apparatus unwanted
The high-frequency wave filter of frequency filter, the corresponding miniaturization of existing cavity body filter is particularly contrasted, light weight, is situated between than ceramics
The low-loss of matter wave filter is high to be suppressed, the ceramics for being applied to high-power base station equipment and high-frequency communication apparatus that advantage is summarized
Cavity body filter.Also referring to Fig. 1, Fig. 2, the built-in ceramic cavity body filter of the present embodiment includes 6 resonators 1, one
The individual metallic cavity 2,11 of ceramic block 5, one debugs 3, two adapters 4 of screw.
The quantity of resonator 1 is not limited to 3, may be greater than equal to 2 resonators and more than.Resonator 1 can be silver-plated
There is silver layer covering on form, periphery.Resonator 1 is housed in metallic cavity 2 by being embedded in ceramic block 5.The filtering
Device offers 6 resonance holes 111 and 5 coupling apertures 211；Each resonance hole 111 penetrates ceramic block 5 from the top surface of metallic cavity 2
And extend into corresponding resonator 1, each coupling aperture 211 extends into ceramic block 5 from the top surface of metallic cavity 2 and is located at phase
Between adjacent two resonators 1.
Resonator 1 is inserted the region of resonance hole 111 of ceramic block 5 by the bottom surface of ceramic block 5 and is embedded in ceramic block 5, makes pottery
Porcelain block 5 is connected with metallic cavity 2 again, and the top surface of ceramic block 5 is fitted in the cavity wall of metallic cavity 2.For ceramic block 5, pottery
Surrounding, top surface and the corresponding wall portion in resonance hole 111 of porcelain block 5, the corresponding wall portion of coupling aperture 211 are without silver layer.Pottery
There can be silver layer on the bottom surface of porcelain block 5.
One debugging screw 3 can be installed in each resonance hole 111 and each coupling aperture 211.Debugging screw 3 can be from metal
Cavity 2 is arranged in corresponding resonance hole 111 and coupling aperture 211 towards the direction of resonator 1.
Two electrode holes 411 open up and each extend over into ceramic block 5 in opposite directions respectively from the opposite sides of metallic cavity 2, with
And in the corresponding resonator 1 adjacent to metallic cavity 2.Two adapters 4 are respectively inserted into two electrode holes 411.During insertion,
Each adapter 4 is furnished with two PIN needles 412 and two limit PIN needles 413.Two limit PIN needles 413 are inserted corresponding humorous respectively
Shake device 1 electrode hole 411 region in, PIN needle 412 is connected with limit PIN needle 413, adapter 4 insert metallic cavity 2 in
It is connected with PIN needle 412.Two limit PIN needles 413 can be gold-plated.Can respectively there be 2 fixing holes 11 the electrode both sides of metallic cavity 2,
It installs fixation.
In summary, in assembling, 6 resonators 1 can be inserted the present invention by the bottom surface of ceramic block 5 (one side for having silver layer) respectively
In the respective regions for entering 6 resonance holes 111 on ceramic block 5；Ceramic block 5 is connected with metallic cavity 2 again；Debugging screw 3 passes through
The respective regions in the resonance hole 111 in metallic cavity 2 and the respective regions of coupling aperture 211, are inserted respectively into metallic cavity 2 simultaneously
It is connected with the respective regions in the resonance hole 111 on ceramic block 5 and the respective regions of coupling aperture 211；Limit PIN needle 412 is inserted
Enter in the respective regions of electrode hole 411 of resonator 1, then PIN needle 412 is connected with limit PIN needle 413, adapter 4 inserts
It is connected in metallic cavity 2 with PIN needle 412.
In other embodiments, as shown in Figures 5 and 6.Ceramic cavity wave filter (hereinafter referred to as CCF) is each middle
The resonator 110 of the disjunctor of coupling aperture 116, comprising close to the resonance hole 114 formed between resonator 110.The resonator portion of grooving
Point；The silver layer part that the inner cylinder of the side in above-mentioned resonator portion, bottom and coupling aperture 116 is formed.With above-mentioned coupling aperture
116 and the coaxially formed through hole 1 in resonance hole 114.Metal shell 130 covers the part in above-mentioned resonator portion 112；It is also logical
The part that through hole 1 is adjusted to insert above-mentioned coupling aperture 116 or resonance hole 114 is crossed, combined with metal shell 130
Tune screw 140.Tuning screw 140 has locking operation portion 148,146, also nut 144 and screw rod 142.
The above-mentioned top of resonator portion 112 can to the one side of above-mentioned metal shell 134 can be with above-mentioned resonator portion 112
Upper isolation.There is gap 118 between two neighboring resonator portion 112.The inner side of metal shell 134 is close in the device portion 112 that shakes
138。
Adapter 150 can include；The limit PIN 154 to be stretched from above-mentioned adapter；One from above-mentioned resonator portion
The resonator side at resonator 110 and his end is held to form through hole 136, above-mentioned limit PIN 154 is by through hole 136, one end
Combined with the resonator 110 at his end, above-mentioned limit PIN 154 one end is the metallization close to above-mentioned coupling aperture 116
Divide, but need open circuit, institute can form L-coupling with above-mentioned resonator.Adapter 150 is fastened by limit PIN 154, also
It is positioned at by two positioning screws 152 in the respective surfaces 134 of metal shell 130.
And in order to solve this invention CCF technical task, the disjunctor of coupling aperture 116 of each middle of wave filter.Connect
The resonator portion that the resonance hole 114 formed between nearly resonator is formed；The silver layer portion formed below above-mentioned resonator portion 112；
In all logical tuning screw 142 in the top and bottom of the above-mentioned the inside of coupling aperture 116 insertion；Also formed harmonious with above-mentioned coupling aperture 116
Shake the coaxial through hole 1 in hole 114, humorous combined with above-mentioned resonant structure in order to which the side in above-mentioned resonator portion 112 is wrapped
Shake device fuselage；To be adjusted to insert above-mentioned coupling aperture 116 or resonance hole also by the tuning screw 140 of through hole 1
114 part.
The above-mentioned top of resonator portion 112 can to the one side of above-mentioned metal shell 130 can be with above-mentioned resonator portion 112
Upper isolation arrangement.
Adapter 150 can include；The limit PIN to be stretched from above-mentioned adapter 150；From the one end in above-mentioned resonator portion
The resonator side at resonator and his end forms through hole 2 136, and above-mentioned limit PIN is that one end is with his end by through hole 2 136
Resonator combine, above-mentioned limit PIN one end is the metalized portion close to above-mentioned through hole coupling aperture 116, but needs
Open circuit, institute can form L-coupling with above-mentioned resonator.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of built-in ceramic cavity body filter, it includes n resonator (1), a metallic cavity (2)；N is humorous not less than 2
The device (1) that shakes is housed in metallic cavity (2)；It is characterized in that：The wave filter also includes a ceramic block (5), resonator (1)
It is housed in by being embedded in ceramic block (5) in metallic cavity (2)；The wave filter offers n resonance hole (111) and n-
1 coupling aperture (211)；Each resonance hole (111) penetrates ceramic block (5) from the top surface of metallic cavity (2) and extended into corresponding
In resonator (1), each coupling aperture (211) is extended into ceramic block (5) and positioned at two neighboring from the top surface of metallic cavity (2)
Between resonator (1).
2. built-in ceramic cavity body filter as claimed in claim 1, it is characterised in that：Resonator (1) is by ceramic block (5)
Bottom surface insertion ceramic block (5) resonance hole (111) region and be embedded in ceramic block (5), ceramic block (5) again with metallic cavity
(2) connect, the top surface of ceramic block (5) is fitted in the cavity wall of metallic cavity (2).
3. built-in ceramic cavity body filter as claimed in claim 2, it is characterised in that：For ceramic block (5), ceramic block
(5) surrounding, the corresponding wall portion of top surface and resonance hole (111), the corresponding wall portion of coupling aperture (211) are without silver layer.
4. built-in ceramic cavity body filter as claimed in claim 3, it is characterised in that：Have on the bottom surface of ceramic block (5)
Silver layer.
5. built-in ceramic cavity body filter as claimed in claim 1, it is characterised in that：Resonator (1) is silver-plated form, week
There is silver layer covering on side.
6. built-in ceramic cavity body filter as claimed in claim 1, it is characterised in that：The wave filter also includes some tune
Screw (3) is tried, a debugging screw (3) is respectively mounted in each resonance hole (111) and each coupling aperture (211).
7. built-in ceramic cavity body filter as claimed in claim 6, it is characterised in that：Screw (3) is debugged from metallic cavity
(2) it is arranged on towards the direction of resonator (1) in corresponding resonance hole (111) and coupling aperture (211).
8. built-in ceramic cavity body filter as claimed in claim 1, it is characterised in that：The wave filter is further opened with two
Electrode hole (411), two electrode holes (411) open up and each extended over into pottery from the opposite sides of metallic cavity (2) in opposite directions respectively
In porcelain block (5).
9. built-in ceramic cavity body filter as claimed in claim 8, it is characterised in that：The wave filter also includes inserting respectively
Enter two adapters (4) in two electrode holes (411).
10. built-in ceramic cavity body filter as claimed in claim 9, it is characterised in that：Each adapter (4) is furnished with two
PIN needle (412) and two limit PIN needles (413)；Two limit PIN needles (413) insert the electrode of corresponding resonator (1) respectively
In the region in hole (411), PIN needle (412) is connected with limit PIN needle (413), in adapter (4) insertion metallic cavity (2) with
PIN needle (412) is connected.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2016-0138435 | 2016-10-24 | ||
| KR1020160138435A KR101797519B1 (en) | 2016-10-24 | 2016-10-24 | ceramic cavity filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107768785A true CN107768785A (en) | 2018-03-06 |
Family
ID=60387642
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721376927.0U Active CN207517833U (en) | 2016-10-24 | 2017-10-24 | A kind of built-in ceramic cavity body filter |
| CN201711001442.8A Pending CN107768785A (en) | 2016-10-24 | 2017-10-24 | A kind of built-in ceramic cavity body filter |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721376927.0U Active CN207517833U (en) | 2016-10-24 | 2017-10-24 | A kind of built-in ceramic cavity body filter |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101797519B1 (en) |
| CN (2) | CN207517833U (en) |
Cited By (4)
| 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 |
| CN109509947A (en) * | 2018-12-05 | 2019-03-22 | 广东通宇通讯股份有限公司 | A kind of contact pin linking cavity body filter |
| WO2022148409A1 (en) * | 2021-01-07 | 2022-07-14 | 苏州市协诚微波技术有限公司 | Ceramic filter having multiple composite ceramic material structures with different dielectric constants |
| CN114899561A (en) * | 2022-05-07 | 2022-08-12 | 苏州希拉米科电子科技有限公司 | Embedded combined ceramic filter |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101797519B1 (en) * | 2016-10-24 | 2017-11-14 | 진영달 | ceramic cavity filter |
| CN109244612B (en) * | 2018-09-28 | 2024-03-22 | 西南应用磁学研究所 | Miniaturized comb-shaped ceramic tube medium cavity filter |
| KR20210010271A (en) | 2019-07-18 | 2021-01-27 | 주식회사 로스윈 | Rf filter |
| KR102082875B1 (en) | 2019-11-12 | 2020-02-28 | 박병권 | Method for lining a branch pipe |
| KR102127506B1 (en) * | 2019-11-19 | 2020-06-26 | 모아컴코리아주식회사 | Ceramic Waveguide Filter With Enhanced Spurious Property |
| KR20230171256A (en) * | 2022-06-13 | 2023-12-20 | (주)파트론 | Waveguide filter and electronic device including the filter |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048951A (en) * | 1986-07-25 | 1991-01-30 | 莫托罗拉公司 | Multiple resonator component-mountable filter |
| KR20040071986A (en) * | 2003-02-07 | 2004-08-16 | 셀레콤 주식회사 | A dielectric waveguide-type ceramic filter |
| US20050030130A1 (en) * | 2003-07-31 | 2005-02-10 | Andrew Corporation | Method of manufacturing microwave filter components and microwave filter components formed thereby |
| CN1607694A (en) * | 1993-10-04 | 2005-04-20 | 松下电器产业株式会社 | Plane type strip line filter in which strip line is shortened and dual mode resonator in which two types microwaves are independently resonated |
| CN101636873A (en) * | 2007-03-12 | 2010-01-27 | Ace技术株式会社 | Make the method for RF device and the RF device made from this method |
| CN101728613A (en) * | 2010-01-07 | 2010-06-09 | 东莞市苏普尔电子科技有限公司 | Combiner control method of multiple-category system signal and four-frequency combiner structure |
| CN101807043A (en) * | 2010-03-19 | 2010-08-18 | 中国科学院上海光学精密机械研究所 | Microwave cavity for cold atomic clock in micro-gravity environment |
| CN202217766U (en) * | 2011-09-28 | 2012-05-09 | 东莞洲亮通讯科技有限公司 | Double-top capacitor large-power miniaturized filter |
| CN103151595A (en) * | 2013-04-02 | 2013-06-12 | 四川九洲电器集团有限责任公司 | Resonator with liner resonance rod |
| CN203839499U (en) * | 2014-04-24 | 2014-09-17 | 中国工程物理研究院应用电子学研究所 | High power wide spectrum 1/4 wavelength switch oscillator |
| CN205376707U (en) * | 2016-01-05 | 2016-07-06 | 成都泰格微波技术股份有限公司 | Common -chamber duplex filter |
| CN105977587A (en) * | 2016-07-07 | 2016-09-28 | 电子科技大学 | Microwave adjustable cavity filter |
| CN106025468A (en) * | 2016-07-11 | 2016-10-12 | 苏州艾福电子通讯股份有限公司 | Ceramic cavity filter |
| CN207517833U (en) * | 2016-10-24 | 2018-06-19 | 苏州艾福电子通讯有限公司 | A kind of built-in ceramic cavity body filter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6025122Y2 (en) | 1980-10-30 | 1985-07-29 | 富士通株式会社 | Dielectric filter module for microwave band transceiver |
-
2016
- 2016-10-24 KR KR1020160138435A patent/KR101797519B1/en active IP Right Grant
-
2017
- 2017-10-24 CN CN201721376927.0U patent/CN207517833U/en active Active
- 2017-10-24 CN CN201711001442.8A patent/CN107768785A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048951A (en) * | 1986-07-25 | 1991-01-30 | 莫托罗拉公司 | Multiple resonator component-mountable filter |
| CN1607694A (en) * | 1993-10-04 | 2005-04-20 | 松下电器产业株式会社 | Plane type strip line filter in which strip line is shortened and dual mode resonator in which two types microwaves are independently resonated |
| KR20040071986A (en) * | 2003-02-07 | 2004-08-16 | 셀레콤 주식회사 | A dielectric waveguide-type ceramic filter |
| US20050030130A1 (en) * | 2003-07-31 | 2005-02-10 | Andrew Corporation | Method of manufacturing microwave filter components and microwave filter components formed thereby |
| CN101636873A (en) * | 2007-03-12 | 2010-01-27 | Ace技术株式会社 | Make the method for RF device and the RF device made from this method |
| CN101728613A (en) * | 2010-01-07 | 2010-06-09 | 东莞市苏普尔电子科技有限公司 | Combiner control method of multiple-category system signal and four-frequency combiner structure |
| CN101807043A (en) * | 2010-03-19 | 2010-08-18 | 中国科学院上海光学精密机械研究所 | Microwave cavity for cold atomic clock in micro-gravity environment |
| CN202217766U (en) * | 2011-09-28 | 2012-05-09 | 东莞洲亮通讯科技有限公司 | Double-top capacitor large-power miniaturized filter |
| CN103151595A (en) * | 2013-04-02 | 2013-06-12 | 四川九洲电器集团有限责任公司 | Resonator with liner resonance rod |
| CN203839499U (en) * | 2014-04-24 | 2014-09-17 | 中国工程物理研究院应用电子学研究所 | High power wide spectrum 1/4 wavelength switch oscillator |
| CN205376707U (en) * | 2016-01-05 | 2016-07-06 | 成都泰格微波技术股份有限公司 | Common -chamber duplex filter |
| CN105977587A (en) * | 2016-07-07 | 2016-09-28 | 电子科技大学 | Microwave adjustable cavity filter |
| CN106025468A (en) * | 2016-07-11 | 2016-10-12 | 苏州艾福电子通讯股份有限公司 | Ceramic cavity filter |
| CN207517833U (en) * | 2016-10-24 | 2018-06-19 | 苏州艾福电子通讯有限公司 | A kind of built-in ceramic cavity body filter |
Cited By (7)
| 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 |
| CN109509947A (en) * | 2018-12-05 | 2019-03-22 | 广东通宇通讯股份有限公司 | A kind of contact pin linking cavity body filter |
| CN109509947B (en) * | 2018-12-05 | 2024-01-05 | 广东通宇通讯股份有限公司 | Pin connection type cavity filter |
| WO2022148409A1 (en) * | 2021-01-07 | 2022-07-14 | 苏州市协诚微波技术有限公司 | Ceramic filter having multiple composite ceramic material structures with different dielectric constants |
| CN114899561A (en) * | 2022-05-07 | 2022-08-12 | 苏州希拉米科电子科技有限公司 | Embedded combined ceramic filter |
| CN114899561B (en) * | 2022-05-07 | 2023-11-17 | 苏州希拉米科电子科技有限公司 | Embedded combined ceramic filter |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101797519B1 (en) | 2017-11-14 |
| CN207517833U (en) | 2018-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107768785A (en) | A kind of built-in ceramic cavity body filter | |
| KR101106949B1 (en) | Rf monoblock filter with recessed top pattern and cavity providing improved attenuation | |
| KR101677950B1 (en) | Cavity filter using cross-coupling | |
| CN108701886A (en) | Cavity type radio-frequency filter with cross-couplings notch arrangement | |
| WO2020088620A1 (en) | Dielectric filter and communication device | |
| KR102040689B1 (en) | Cavity filter | |
| JP2001177313A (en) | Resonator, filter, composite filter, duplexer and communication unit | |
| SG186467A1 (en) | Coupling mechanism for a pcb mounted microwave re-entrant resonant cavity | |
| WO2020259028A1 (en) | Resonator apparatus, filter apparatus as well as radio frequency and microwave device | |
| EP1858109A1 (en) | Dielectric TE dual mode resonator | |
| JP3633520B2 (en) | Resonator device, filter, duplexer, and communication device | |
| JP2008205692A (en) | High-frequency filter | |
| EP1315228A1 (en) | Dielectric filter | |
| CN108206320A (en) | Utilize the wave filter and notch diplexer of disresonance node | |
| US9666922B2 (en) | Dielectric filter, duplexer, and communication device | |
| JPWO2020054663A1 (en) | Resonators, filters and communication devices | |
| CN111342182B (en) | Structural mixed different-wavelength resonant ceramic filter | |
| US9912026B2 (en) | Low-loss continuously tunable filter and resonator thereof | |
| JP2000295005A (en) | Dielectric filter, duplexer and communication equipment | |
| KR101730084B1 (en) | Radio frequency filter with cavity structure | |
| Matsumoto et al. | A miniaturized dielectric monoblock band-pass filter for 800 MHz band cordless telephone system | |
| CN111628259A (en) | Capacitive coupling structure and filter | |
| JPWO2020090547A1 (en) | Resonators, filters and communication devices | |
| CN106785252A (en) | New resistance filter apparatus | |
| US6977565B2 (en) | Dielectric filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 215129 14 Environmental Protection Industrial Park No. 369 Lushan Road, Suzhou High-tech Zone, Jiangsu Province Applicant after: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS CO., LTD. Applicant after: Chen Rongda Applicant after: Jin Shoushan Address before: 215129 14 Environmental Protection Industrial Park No. 369 Lushan Road, Suzhou High-tech Zone, Jiangsu Province Applicant before: Suzhou RF Top Electronic Communication Co., Ltd. Applicant before: Chen Rongda Applicant before: Jin Shoushan |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 215000 No.65, Chengji Road, Hushuguan Town, high tech Zone, Suzhou City, Jiangsu Province Applicant after: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS Co.,Ltd. Applicant after: Chen Rongda Applicant after: Jin Shoushan Address before: 215129 14 Environmental Protection Industrial Park No. 369 Lushan Road, Suzhou High-tech Zone, Jiangsu Province Applicant before: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS Co.,Ltd. Applicant before: Chen Rongda Applicant before: Jin Shoushan |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180306 |
|
| RJ01 | Rejection of invention patent application after publication |