CN204289670U - A kind of coupling structure of filter and filter - Google Patents
A kind of coupling structure of filter and filter Download PDFInfo
- Publication number
- CN204289670U CN204289670U CN201420860002.3U CN201420860002U CN204289670U CN 204289670 U CN204289670 U CN 204289670U CN 201420860002 U CN201420860002 U CN 201420860002U CN 204289670 U CN204289670 U CN 204289670U
- Authority
- CN
- China
- Prior art keywords
- cavity
- filter
- resonator
- coupling
- coupling structure
- 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
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The utility model is applicable to the communications field, provide a kind of coupling structure of filter, comprise the first cavity, the second cavity and the 3rd cavity and be arranged on the first resonator, the second resonator and the 3rd resonator in the first cavity, the second cavity and the 3rd cavity respectively, first resonator, be coupled respectively by coupling window between the second resonator and the 3rd resonator, the first cavity, the 3rd cavity intersection location are provided with a coupling screw rod.The invention also discloses a kind of filter adopting this coupling structure of filter.Adopt the utility model, filter screw bolt quantity is few, is easy to regulate and structure is simple, reduces technology difficulty and also reduces production cost.
Description
Technical field
The utility model belongs to the communications field, particularly relates to a kind of coupling structure of filter and filter.
Background technology
Filter is applied in various types of communication base station due to its good performance gradually as a kind of frequency selection device, is the widely used electronic component of microwave industry.In filter, cavity body filter was combined with multiple negative zero point that is coupled by multiple resonant cavity and multiple zero point that is just being coupled, and the resonant cavity of usual main coupling with all can have tolerance between resonant cavity and between the resonant cavity be just coupled and resonant cavity, need when design by coupling screw rod correction tolerance, general resonant cavity is used for revising coupling amount with respectively there being the screw rod that is coupled between resonant cavity, coupling screw rod quantity is many, needs to carry out a large amount of debugging efforts.
As shown in Figure 1, existing filter comprises three resonant cavity 1', and three the resonator 2' be vertically arranged on respectively on resonant cavity 1', separate with isolation bar 3' respectively between neighboring chambers and be provided with coupling window 4', being coupled by coupling window 4' between resonator.In order to regulate coupling amount, be inserted with coupling screw rod 5' at coupling window 4', coupling screw rod 5' stretches into the depth adjustable of coupling window 4', by regulating the degree of depth stretched on coupling screw rod 5' to change coupling amount, makes the coupling amount between cavity adjustable.
This coupled structure coupling screw rod quantity is many, and can cause when the method that coupling amount needs to increase coupling window size is not to increase coupling amount that center isolated island 6' is undersized, intensity is too low, processing difficulties or not easy-formation when producing in enormous quantities, production cost remains high.
Utility model content
The utility model provides a kind of coupling structure of filter and filter, is intended to solve in prior art be coupled that screw rod quantity Duo Qie center isolated island is undersized, intensity is too low, processing difficulties or not easy-formation when producing in enormous quantities, the problem that production cost is high.
The utility model realizes like this, a kind of coupling structure of filter, comprise the first cavity, the second cavity and the 3rd cavity and be arranged on the first resonator, the second resonator and the 3rd resonator in described first cavity, the second cavity and the 3rd cavity respectively, described first resonator, be coupled respectively by coupling window between the second resonator and the 3rd resonator, described first cavity, the 3rd cavity intersection location are provided with a coupling screw rod.
Preferably, the first cavity, the second cavity and the 3rd cavity are circular or square.
Preferably, coupling screw rod is arranged on the mid point of described first cavity and the 3rd chamber central line for the center of circle, and radius is in the circle of 5mm.
Preferably, the screw rod that is coupled is arranged on the mid point of described first cavity and the 3rd chamber central line.
Preferably, described first cavity and the second cavity, between the second cavity and the 3rd cavity, be provided with isolation bar, the isolation bar between described first cavity and the 3rd cavity than described first cavity and the second cavity, isolation bar between the second cavity and the 3rd cavity is short or do not have isolation bar between described first cavity and the 3rd cavity.
Preferably, the first resonator, the second resonator and the 3rd resonator are equilateral or isosceles triangle layout.
Preferably, the material of described first cavity, the second cavity and the 3rd cavity is metal.
The utility model also provides a kind of filter, comprises above-mentioned coupling structure of filter.
The coupling structure of filter that the utility model provides and filter, by removing middle isolated island and arranging a coupling screw rod at the first cavity and the 3rd cavity intersection, only need to regulate this coupling screw rod just adjustable coupling amount, screw rod quantity is few, be easy to regulate and structure is simple, reduce technology difficulty and correspondingly also reduce production cost.
Accompanying drawing explanation
Fig. 1 is the coupling structure of filter stereogram that prior art provides;
Fig. 2 is the coupling structure of filter stereogram that the utility model provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 2, coupling structure of filter comprises the first cavity 110, second cavity 120 and the 3rd cavity 130, is respectively equipped with the first resonator 111, second resonator 121 and the 3rd resonator 131 in the first cavity 110, second cavity 120 and the 3rd cavity 130.Intersection location between cavity and cavity is provided with coupling window, be coupled by the first coupling window 140 between first resonator 111 with the second resonator 121, be coupled by the second coupling window 150 between second resonator 121 with the 3rd resonator 131, be coupled by the 3rd coupling window 160 between 1st resonator 111 with the 3rd resonator 131, namely any two resonators are coupled by coupling window respectively.
Coupling screw rod 113 is arranged in the first cavity 110, the 3rd cavity 130 intersection location, conveniently regulate, preferably, the position of coupling screw rod 113 be arranged on the first cavity 110 and the 3rd cavity 130 line of centres mid point be the center of circle, radius is in the circle of 5mm.
More preferably, the screw rod 113 that is coupled is arranged on the mid point of the first cavity 110 and the 3rd cavity 130 line of centres.Understandably, the position of coupling screw rod 113 can offset to some extent between the first cavity 110 and the 3rd cavity 130, sets, do not form the restriction to utility model according to specific targets.
Consult Fig. 2 again, first cavity 110 and be respectively equipped with isolation bar 170 between the second cavity 120, second cavity 120 and the 3rd cavity 130,180, as one embodiment of the present of invention, under certain index, in order to meet the electrical performance demands of filter, the isolation bar that can shorten the isolation bar between the first cavity 110 and the 3rd cavity 130 or remove between the first cavity 110 and the 3rd cavity 130.Understandably, the isolation bar length between cavity can lengthen according to concrete designing requirement or shorten.
Square, circular or other shapes can be set to according to actual needs with the shape of upper cavity.Preferably, the present embodiment adopts circular, and material is metal, but other also can be selected to have superior temperature stability and the material of high q-factor.
Concrete adjustment process is: coupling screw rod 113 screws in the length of the 3rd coupling window 160, the amount of coupling between first cavity 110 with the 3rd cavity 130 strengthens, and main coupling amount i.e. the first cavity 110 weakens with the amount of coupling between the 3rd cavity 130 with the second cavity 120, second cavity 120; The length that coupling screw rod 113 screws in the 3rd coupling window 160 shortens, and the amount of coupling between the first cavity 110 with the 3rd cavity 130 weakens, and main coupling amount i.e. the first cavity 110 strengthens with the amount of coupling between the 3rd cavity with the second cavity 120, second cavity 120.
The utility model eliminates the center isolated island in existing design, and only the screw rod 113 that is coupled is set between the first cavity 110 with the 3rd cavity 130, need in existing design between each coupling window, arrange the object that coupling screw rod regulates coupling amount between cavity by regulating coupling screw rod 113 just can realize.
In order to the overall dimension of compression filter and the production cost of reduction filter, be that isosceles or equilateral triangle are arranged between resonator, but also can arrange in other non-equilateral or non-isosceles triangle modes.
As a kind of execution mode of the present utility model, also provide a kind of filter, this filter comprises the coupling structure of filter of above-described embodiment.
It should be noted that, filter includes but not limited to three cavitys, first cavity 110, second cavity 120 and the 3rd cavity 130 for being only arranged on a part of cavity in filter, namely can also have the 4th cavity, the 5th cavity after the 3rd cavity 130 ... N cavity.For ease of illustrating, above embodiment is only described for three cavitys.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (8)
1. a coupling structure of filter, comprise the first cavity, the second cavity and the 3rd cavity and be arranged on the first resonator, the second resonator and the 3rd resonator in described first cavity, the second cavity and the 3rd cavity respectively, described first resonator, the second resonator and the 3rd resonator are coupled respectively by coupling window, it is characterized in that: described first cavity, the 3rd cavity intersection location are provided with a coupling screw rod.
2. coupling structure of filter as claimed in claim 1, is characterized in that: described first cavity, the second cavity and the 3rd cavity are for circular or square.
3. coupling structure of filter as claimed in claim 1, is characterized in that: described coupling screw rod is arranged on the mid point of described first cavity and the 3rd chamber central line for the center of circle, and radius is in the circle of 5mm.
4. coupling structure of filter as claimed in claim 3, is characterized in that: described coupling screw rod is arranged on the mid point of described first cavity and the 3rd chamber central line.
5. coupling structure of filter as claimed in claim 1, described first cavity and the second cavity, between the second cavity and the 3rd cavity, be provided with isolation bar, the isolation bar between described first cavity and the 3rd cavity than described first cavity and the second cavity, isolation bar between the second cavity and the 3rd cavity is short or do not have isolation bar between described first cavity and the 3rd cavity.
6. coupling structure of filter as claimed in claim 1 or 2, is characterized in that: described first resonator, the second resonator and the 3rd resonator are equilateral or isosceles triangle is arranged.
7. coupling structure of filter as claimed in claim 1 or 2, is characterized in that: the material of described first cavity, the second cavity and the 3rd cavity is metal.
8. a filter, is characterized in that: described filter comprises the coupling structure of filter as described in claim as arbitrary in claim 1 ~ 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420860002.3U CN204289670U (en) | 2014-12-29 | 2014-12-29 | A kind of coupling structure of filter and filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420860002.3U CN204289670U (en) | 2014-12-29 | 2014-12-29 | A kind of coupling structure of filter and filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204289670U true CN204289670U (en) | 2015-04-22 |
Family
ID=52872802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420860002.3U Active CN204289670U (en) | 2014-12-29 | 2014-12-29 | A kind of coupling structure of filter and filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204289670U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111033885A (en) * | 2018-05-10 | 2020-04-17 | 深圳市大富科技股份有限公司 | Cavity filter and communication radio frequency device |
| CN113036367A (en) * | 2019-12-25 | 2021-06-25 | 深圳市大富科技股份有限公司 | Communication device and filter thereof |
| CN113054357A (en) * | 2019-12-27 | 2021-06-29 | 深圳市大富科技股份有限公司 | Communication equipment and filter thereof |
| CN113054355A (en) * | 2019-12-27 | 2021-06-29 | 深圳市大富科技股份有限公司 | Communication device and filter |
-
2014
- 2014-12-29 CN CN201420860002.3U patent/CN204289670U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111033885A (en) * | 2018-05-10 | 2020-04-17 | 深圳市大富科技股份有限公司 | Cavity filter and communication radio frequency device |
| CN113036367A (en) * | 2019-12-25 | 2021-06-25 | 深圳市大富科技股份有限公司 | Communication device and filter thereof |
| CN113054357A (en) * | 2019-12-27 | 2021-06-29 | 深圳市大富科技股份有限公司 | Communication equipment and filter thereof |
| CN113054355A (en) * | 2019-12-27 | 2021-06-29 | 深圳市大富科技股份有限公司 | Communication device and filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204289670U (en) | A kind of coupling structure of filter and filter | |
| CN202797210U (en) | Cavity filter and radio frequency communication equipment | |
| CN102683769B (en) | Cavity filter, duplexer and combiner | |
| CN101964439B (en) | Filter coupling structure with adjustable capacity | |
| CN108281741A (en) | A kind of TE01 mould dielectric filters being easily worked debugging | |
| CN103633401A (en) | Wide band cavity filter | |
| CN105406158A (en) | Dual-mode dielectric filter enabling frequency and coupling control based metal patches | |
| CN202275917U (en) | Resonant cavity | |
| CN104659451A (en) | Four-mode band-pass filter based on 1/3 equilateral triangular substrate integrated resonator | |
| CN202050043U (en) | Cavity filter and communication equipment | |
| CN206210993U (en) | A kind of bimodulus medium bandpass filter | |
| CN202275899U (en) | Coupling adjusting structure of medium filter | |
| CN205921059U (en) | Cavity filter who contains adjustable capacitance coupling structure | |
| CN204481102U (en) | A kind of TE mould dielectric filter | |
| CN212011202U (en) | Ceramic dielectric waveguide filter applied to 5G communication | |
| CN104241744B (en) | A kind of broadband filter of the mould cavity resonator of use single-chamber five | |
| CN111403862A (en) | Ceramic dielectric waveguide filter applied to 5G communication | |
| CN212230588U (en) | Dielectric waveguide filter | |
| CN212011209U (en) | Lumped parameter surface mounted circulator non-reciprocal inductance module for communication | |
| CN104037478A (en) | Medium filter | |
| CN104332683B (en) | A kind of dual-passband hexagon wave filter for being applied to PCS ＆ WiMAX frequency ranges | |
| CN202395128U (en) | Dual-mode cavity filter with circular chamfers | |
| CN207719379U (en) | A kind of dielectric waveguide filter negative zero point coupled structure | |
| CN204481100U (en) | A kind of rectangle single ridge waveguide structure low pass filter | |
| CN203644911U (en) | Micro-strip super-wide stop-band low-pass filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Filter coupling structure and filter Effective date of registration: 20180521 Granted publication date: 20150422 Pledgee: Bank of China Limited by Share Ltd Ningbo Yinzhou branch Pledgor: NINGBO HUACI COMMUNICATION TECHNOLOGY CO., LTD. Registration number: 2018330000105 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201030 Granted publication date: 20150422 Pledgee: Bank of China Limited by Share Ltd. Ningbo Yinzhou branch Pledgor: NINGBO HUACI COMMUNICATION TECHNOLOGY Co.,Ltd. Registration number: 2018330000105 |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 315000 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 315000 Patentee before: NINGBO HUACI COMMUNICATION TECHNOLOGY Co.,Ltd. |