CN208272091U - A kind of cross-coupled filter - Google Patents
A kind of cross-coupled filter Download PDFInfo
- Publication number
- CN208272091U CN208272091U CN201820760162.9U CN201820760162U CN208272091U CN 208272091 U CN208272091 U CN 208272091U CN 201820760162 U CN201820760162 U CN 201820760162U CN 208272091 U CN208272091 U CN 208272091U
- Authority
- CN
- China
- Prior art keywords
- resonator
- resonant cavity
- trimmer
- resonant
- face
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of cross-coupled filters, including shell and cover board, the shell is equipped with the inner cavity being made of four resonant cavities, four resonant cavities are respectively the first resonant cavity being arranged successively, second resonant cavity, third resonant cavity and the 4th resonant cavity, resonator is equipped in each resonant cavity, the first side of resonator in first resonant cavity, the second side of resonator in second resonant cavity, the third side of resonator in the third resonant cavity, 4th side of the resonator in the 4th resonant cavity is equipped with trimmer, it is opposite with face that the trimmer on trimmer and second side in the first side is located at the same side and the two side face；It is opposite with face that the trimmer on trimmer and the 4th side on the third side is located at the same side and the two side face.The filter only needs that the spacing by adjusting piece is realized, small in size, light weight and cost is low, easy to process, at low cost；It is easy to adjust, strong operability.
Description
Technical field
The utility model relates to communication technique fields, are especially a kind of cross-coupled filter.
Background technique
Increasingly developed cellular communication and PCS Personal Communications System PCSs proposes base station filters and duplexer new
Tightened up requirement.It may require the phase greater than 100dB by the duplexer that reception frequency range and transmitting band-pass filter of frequency band form
Mutually isolation, the decaying simultaneously for other side do not specially require.Cross-coupling technique can produce non-frequency and symmetrically ring
It answers, since it can be only highly attenuating in the frequency range offer of needs, using more and more extensive.In addition cross-coupling can be reduced
The quantity of the resonant cavity needed to meet attenuation outside a channel, while reducing insertion loss, size and processing cost etc., it is traditional
Capacitive cross coupling needs to increase a winged bar between chamber to realize, volume is at high cost greatly.
Summary of the invention
The technical problems to be solved in the utility model be to provide only need by adjusting piece spacing realization, it is small in size,
Light weight and cost is low, easy to process, at low cost；It is easy to adjust, the cross-coupled filter of strong operability.
The technical solution of the utility model is to provide a kind of cross-coupled filter having following structure, including shell
And cover board, the shell are equipped with the inner cavity being made of four resonant cavities, four resonant cavities are respectively first be arranged successively
Resonant cavity, the second resonant cavity, third resonant cavity and the 4th resonant cavity, each resonant cavity is interior to be equipped with resonator, and each resonator is logical
The inner bottom surface for crossing connecting column and shell is fixed, and the cover board is located at the opening of housing cavity and is bolted；Described
Resonator in one resonant cavity is coupled with the resonator in the second resonant cavity, and the resonator and third in second resonant cavity are humorous
The resonator for shaking intracavitary couples, and the resonator in the 4th resonant cavity is coupled with the resonator in the first resonant cavity: its feature
It is: the first side of the resonator in first resonant cavity, the second side of resonator in second resonant cavity, institute
State the third side of the resonator in third resonant cavity, the 4th side of resonator in the 4th resonant cavity is equipped with adjustment
Piece, it is opposite with face that the trimmer on trimmer and second side in the first side is located at the same side and the two side face；
It is opposite with face that the trimmer on trimmer and the 4th side on the third side is located at the same side and the two side face.
The trimmer is connected as one by connection sheet and resonator, and the two sides of the connection sheet are respectively symmetrically equipped with scarce
Mouthful.
Top bolt of the resonator respectively with respective connecting column is connected and fixed.
The center of the shell is equipped with cylinder, and the threaded hole that the bolt passes through on through-hole and cylinder on cover board screws.
After using the above structure, the utility model have the advantage that by adjusting in the first resonant cavity resonator and
The registration of the both ends of the surface of resonator in second resonant cavity, and by adjusting resonator in third resonant cavity and the 4th humorous
Shake intracavitary resonator both ends of the surface registration, in this way when not changing resonator, by change two resonant cavities in
Upper lower angle, change the registration of both ends of the surface to couple bandwidth required for reaching, and capacitive cross coupling can also be saved
When need an increased winged bar between chamber, make that entire filter is small in size, light weight and cost is low, easy to process, cost
It is low；It is easy to adjust, strong operability.
Detailed description of the invention
Fig. 1 is a kind of schematic perspective view of cross-coupled filter of the utility model.
Fig. 2 is a kind of overlooking structure diagram for not installing cover board of cross-coupled filter of the utility model.
Fig. 3 is the perspective view of resonator.
Fig. 4 is the right side view of resonator.
Fig. 5 is the trimmer right side view after bending of resonator.
It is as shown in the figure:
1, shell, the 1.1, first resonant cavity, the 1.2, second resonant cavity, 1.3, third resonant cavity, the 1.4, the 4th resonant cavity,
2, cover board,
3, resonator, 3.1, trimmer, 3.2, connection sheet,
4, connecting column, 5, bolt, 6, cylinder.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As described in Fig. 1-5, a kind of cross-coupled filter of the utility model, including shell 1 and cover board 2, the shell 1
Equipped with the inner cavity being made of four resonant cavities, the first resonant cavity 1.1, second that four resonant cavities are respectively arranged successively is humorous
Shake chamber 1.2, third resonant cavity 1.3 and the 4th resonant cavity 1.4, is equipped with resonator 3 in each resonant cavity, each resonator passes through company
It connects column 4 and the inner bottom surface of shell 1 is fixed, the cover board 2 is located at the opening of 1 inner cavity of shell and is fixed by bolt 5；Described
Resonator 3 in one resonant cavity 1.1 is coupled with the resonator 3 in the second resonant cavity 1.2, humorous in second resonant cavity 1.2
Vibration device 3 is coupled with the resonator 3 in third resonant cavity 1.3, the resonator 3 and the first resonant cavity in the 4th resonant cavity 1.4
Resonator 3 in 1.1 couples: in the first side of the resonator 3 in first resonant cavity 1.1, second resonant cavity 1.2
The second side of resonator 3, the third side of resonator 3 in the third resonant cavity 1.3, the 4th resonant cavity 1.4
4th side of interior resonator 3 is equipped with trimmer 3.1, on the trimmer 3.1 and second side in the first side
It is opposite with face that trimmer 3.1 is located at the same side and the two side face；On trimmer 3.1 and the 4th side on the third side
Trimmer 3.1 to be located at the same side and the two side face opposite with face.
The trimmer 3.1 on trimmer 3.1 and third side in first side is located at the outside of the opposite face of the two, the
The trimmer 3.1 on trimmer 3.1 and the 4th side on two side faces is located at the outside of the opposite face of the two, by adjusting first
The registration of the both ends of the surface of resonator 3 in resonant cavity 1.1 and the resonator 3 in the second resonant cavity 1.2, and by adjusting
The registration of the both ends of the surface of resonator 3 in three resonant cavities 1.3 and the resonator 3 in the 4th resonant cavity 1.4 is not changing in this way
In the case of resonator 3, by changing the upper lower angle in two resonant cavities, change the registration of both ends of the surface to reach required
An increased winged bar between chamber is needed when coupling bandwidth, and capacitive cross coupling can also be saved, makes entire body
Product is small, light weight and cost is low, easy to process, at low cost；It is easy to adjust, strong operability.
The trimmer 3.1 is connected as one by connection sheet 3.2 with resonator 3, the two sides difference of the connection sheet 3.2
It is symmetrically arranged with notch, facilitates the bending adjustment of about 3.1 trimmer.
Top bolt of the resonator 3 respectively with respective connecting column 4 is connected and fixed, convenient for disassembly and assembly.
The center of the shell 1 is equipped with cylinder 6, and the bolt 5 passes through the threaded hole on through-hole and cylinder 6 on cover board 2
It screws.
Claims (4)
1. a kind of cross-coupled filter, including shell and cover board, the shell is equipped with the inner cavity being made of four resonant cavities, institute
Stating four resonant cavities is respectively the first resonant cavity, the second resonant cavity, third resonant cavity and the 4th resonant cavity being arranged successively, each
Resonator is equipped in resonant cavity, each resonator is fixed by the inner bottom surface of connecting column and shell, and the cover board is located in shell
The opening of chamber is simultaneously bolted；Resonator in first resonant cavity is coupled with the resonator in the second resonant cavity,
Resonator in second resonant cavity is coupled with the resonator in third resonant cavity, the resonator in the 4th resonant cavity with
Resonator coupling in first resonant cavity: it is characterized by: the first side of the resonator in first resonant cavity, described the
The second side of resonator in two resonant cavities, the third side of resonator in the third resonant cavity, the 4th resonance
4th side of intracavitary resonator is equipped with trimmer, the trimmer on trimmer and second side in the first side
Positioned at the same side and the two side face it is opposite with face；The trimmer on trimmer and the 4th side on the third side is located at
The same side and the two side face is opposite with face.
2. a kind of cross-coupled filter according to claim 1, it is characterised in that: the trimmer by connection sheet with
Resonator is connected as one, and the two sides of the connection sheet are respectively symmetrically equipped with notch.
3. a kind of cross-coupled filter according to claim 1, it is characterised in that: the resonator respectively with it is respective
The top bolt of connecting column is connected and fixed.
4. a kind of cross-coupled filter according to claim 1, it is characterised in that: the center of the shell is equipped with column
Body, the threaded hole that the bolt passes through on through-hole and cylinder on cover board screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820760162.9U CN208272091U (en) | 2018-05-21 | 2018-05-21 | A kind of cross-coupled filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820760162.9U CN208272091U (en) | 2018-05-21 | 2018-05-21 | A kind of cross-coupled filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208272091U true CN208272091U (en) | 2018-12-21 |
Family
ID=64684496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820760162.9U Active CN208272091U (en) | 2018-05-21 | 2018-05-21 | A kind of cross-coupled filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208272091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021022471A1 (en) * | 2019-08-06 | 2021-02-11 | 罗森伯格技术（昆山）有限公司 | Cross-coupled filter |
| US11973255B2 (en) | 2022-02-07 | 2024-04-30 | Prose Technologies (Suzhou) Co., Ltd. | Cross-coupled filter |
-
2018
- 2018-05-21 CN CN201820760162.9U patent/CN208272091U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021022471A1 (en) * | 2019-08-06 | 2021-02-11 | 罗森伯格技术（昆山）有限公司 | Cross-coupled filter |
| US11973255B2 (en) | 2022-02-07 | 2024-04-30 | Prose Technologies (Suzhou) Co., Ltd. | Cross-coupled filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209691911U (en) | A kind of duplexer and communication equipment | |
| CN108039543B (en) | Monomer double-circuit filter based on dielectric resonator | |
| US10164309B2 (en) | Dielectric resonator and dielectric filter | |
| CN109411853A (en) | A kind of high tri- mould dielectric resonance hollow structure of Q of cavity and the filter containing the resonance structure | |
| US20170040656A1 (en) | Coaxial filter with elongated resonator | |
| CN109411852A (en) | A kind of high tri- mould dielectric resonance structure of Q of cavity and the filter containing the resonance structure | |
| CN109509950A (en) | A kind of compact dual-frequency waveguide filter | |
| CN208062223U (en) | A kind of filter transfer zero realization structure | |
| CN208272091U (en) | A kind of cross-coupled filter | |
| CN103985933B (en) | The multi-vibration-mode filter of transmission zero can be adjusted | |
| CN111525218A (en) | High-performance dielectric waveguide filter with six trapped waves and communication equipment | |
| CN105633520B (en) | A kind of double frequency narrow-band bandpass dielectric filter | |
| CN105826640B (en) | A kind of bimodulus balun bandpass filter based on multimode resonator | |
| CN104485497A (en) | TE01 mixing cavity filter device | |
| US6529094B1 (en) | Dielectric resonance device, dielectric filter, composite dielectric filter device, dielectric duplexer, and communication apparatus | |
| CA3171908A1 (en) | High-q multi-mode dielectric resonant structure and dielectric filter | |
| KR20150021138A (en) | Triple-mode Filter | |
| CN203553312U (en) | C wave band multichannel band pass filter | |
| CN202058839U (en) | Small-sized double-band band pass filter | |
| US20200280115A1 (en) | Integrated filter system and antenna system | |
| CN108987865A (en) | Suspended stripline filter based on hybrid electromagnetic coupling | |
| CN210430050U (en) | Coaxial cavity duplexer | |
| CN209709143U (en) | A kind of high tri- mould dielectric resonance hollow structure of Q of cavity and the filter containing the resonance structure | |
| CN208272090U (en) | A kind of capacitive coupling and inductive coupled changeable filter | |
| CN112768855A (en) | High-performance miniaturized base station antenna built-in cavity duplexer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 315100 floor 1-2, building 8, 818 Jinyuan Road, Yinzhou District, Ningbo City, Zhejiang Province Patentee after: Ningbo Huaci Communication Technology Co.,Ltd. Address before: 2 / F, building 3, 818 Jinyuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 315100 Patentee before: NINGBO HUACI COMMUNICATION TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |