CN204189933U - The dielectric filter that adjustable medium is coupled with metal resonators - Google Patents
The dielectric filter that adjustable medium is coupled with metal resonators Download PDFInfo
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- CN204189933U CN204189933U CN201420532452.XU CN201420532452U CN204189933U CN 204189933 U CN204189933 U CN 204189933U CN 201420532452 U CN201420532452 U CN 201420532452U CN 204189933 U CN204189933 U CN 204189933U
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Abstract
The utility model discloses the dielectric filter that a kind of adjustable medium is coupled with metal resonators, comprise cavity, metal resonators, dielectric resonator, coupling piece and coupling screw rod; Described coupling piece comprises two extensions and a leap portion; Each coupling window is furnished with three coupling screw rods; Described three coupling screw rods are suspended in coupling window, and vertically run through leap portion and two extensions respectively; Described leap portion and two extensions are respectively equipped with the through hole supplying the movement of coupling screw rod; Described three coupling screw rods are positioned at same plane.The utility model ensures coupling value by the coupling piece of special construction and the fixed structure of coupling piece, also finely tunes adjacent media resonator and being coupled between metal resonators by coupling screw rod, is convenient to production debugging, ensure product yield.
Description
Technical field
The utility model relates to the dielectric filter that adjustable medium is coupled with metal resonators.
Background technology
Dielectric filter is widely used in the base station of communications transmit and reception, for selecting signal of communication, eliminates the clutter outside signal of communication and interference signal.In dielectric filter design, in order to significantly improve the electrical performance indexes of filter, often adopt metal resonators and ceramic dielectric resonator in dielectric filter inside simultaneously.And the coupled problem between metal resonators and ceramic dielectric resonator, be the key issue determining that whether qualified dielectric filter is.
Utility model content
The purpose of this utility model is the dielectric filter providing a kind of adjustable medium to be coupled with metal resonators, coupling value is ensured by the coupling piece of special construction and the fixed structure of coupling piece, also finely tune adjacent media resonator and being coupled between metal resonators by coupling screw rod, be convenient to production debugging, ensure product yield.
For achieving the above object, the technical solution of the utility model is the dielectric filter that a kind of adjustable medium of design is coupled with metal resonators, comprises cavity, metal resonators, dielectric resonator, coupling piece and coupling screw rod;
Described cavity is separated out Metal cavity, dielectric resonant chamber by partition wall; Described partition wall is provided with the coupling window for through adjacent metal resonant cavity, dielectric resonant chamber;
Described metal resonators comprises Metal cavity, and is arranged on the metal resonant column in Metal cavity; Described dielectric resonator comprises dielectric resonant chamber, and is arranged on the dielectric resonance post in dielectric resonant chamber; Described metal resonant column and dielectric resonance post are parallel to each other;
Described coupling piece comprises two extensions and a leap portion;
Described leap portion, vertically runs through coupling window, and its length direction two ends are fixed in Metal cavity, dielectric resonant chamber respectively by the silver-plated screw of brass;
Described two extensions, are positioned at coupling window, are divided into leap portion both lateral sides, are symmetrical arranged with the portion of leap, and be positioned at same plane with leap portion;
Each coupling window is furnished with three coupling screw rods; Described three coupling screw rods are suspended in coupling window, and vertically run through leap portion and two extensions respectively; Described leap portion and two extensions are respectively equipped with the through hole supplying the movement of coupling screw rod; Described three coupling screw rods are positioned at same plane.
Preferably, described metal resonant column and/or dielectric resonance post hollow.
Preferably, the material of described coupling piece is brass.
Advantage of the present utility model and beneficial effect are: provide a kind of dielectric filter, coupling value is ensured by the coupling piece of special construction and the fixed structure of coupling piece, also finely tune adjacent media resonator and being coupled between metal resonators by coupling screw rod, be convenient to production debugging, ensure product yield.
The structure of coupling piece, and the size of its principal length, determine the size of coupling value, and then determine the bandwidth of filter.
Regulate the built-in length of coupling screw rod, the coupling amount of fine-tuning adjacent two resonant cavitys, thus the bandwidth of fine setting filter.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection range of the present utility model with this.
The technical scheme that the utility model is specifically implemented is:
As shown in Figure 1, the dielectric filter that a kind of adjustable medium is coupled with metal resonators, comprises cavity, metal resonators, dielectric resonator, coupling piece 1 and coupling screw rod 2;
Described cavity is separated out Metal cavity 41, dielectric resonant chamber 51 by partition wall; Described partition wall is provided with the coupling window 3 for through adjacent metal resonant cavity 41, dielectric resonant chamber 51;
Described metal resonators comprises Metal cavity 41, and is arranged on the metal resonant column 42 in Metal cavity 41; Described dielectric resonator comprises dielectric resonant chamber 51, and is arranged on the dielectric resonance post 52 in dielectric resonant chamber 51; Described metal resonant column 42 and dielectric resonance post 52 are parallel to each other;
Described coupling piece 1 comprises two extensions 11 and a leap portion 12;
Described leap portion 12, vertically runs through coupling window 3, and its length direction two ends are fixed in Metal cavity 41, dielectric resonant chamber 51 respectively by the silver-plated screw 6 of brass;
Described two extensions 11, are positioned at coupling window 3, are divided into leap portion 12 both lateral sides, be symmetrical arranged, and be positioned at same plane with leap portion 12 to cross over portion 12;
Each coupling window 3 is furnished with three coupling screw rods 2; Described three coupling screw rods 2 are suspended in coupling window 3, and vertically run through leap portion 12 and two extensions 11 respectively; Described leap portion 12 and two extensions 11 are respectively equipped with the through hole supplying the movement of coupling screw rod 2; Described three coupling screw rods 2 are positioned at same plane.
Described metal resonant column 42 and/or dielectric resonance post 52 hollow.
The material of described coupling piece 1 is brass.
The structure of coupling piece 1, and the size of its principal length, determine the size of coupling value, and then determine the bandwidth of filter.
Regulate the built-in length of coupling screw rod 2, the coupling amount of fine-tuning adjacent two resonant cavitys, thus the bandwidth of fine setting filter.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. the dielectric filter that is coupled with metal resonators of adjustable medium, is characterized in that, comprise cavity, metal resonators, dielectric resonator, coupling piece and coupling screw rod;
Described cavity is separated out Metal cavity, dielectric resonant chamber by partition wall; Described partition wall is provided with the coupling window for through adjacent metal resonant cavity, dielectric resonant chamber;
Described metal resonators comprises Metal cavity, and is arranged on the metal resonant column in Metal cavity; Described dielectric resonator comprises dielectric resonant chamber, and is arranged on the dielectric resonance post in dielectric resonant chamber; Described metal resonant column and dielectric resonance post are parallel to each other;
Described coupling piece comprises two extensions and a leap portion;
Described leap portion, vertically runs through coupling window, and its length direction two ends are fixed in Metal cavity, dielectric resonant chamber respectively by the silver-plated screw of brass;
Described two extensions, are positioned at coupling window, are divided into leap portion both lateral sides, are symmetrical arranged with the portion of leap, and be positioned at same plane with leap portion;
Each coupling window is furnished with three coupling screw rods; Described three coupling screw rods are suspended in coupling window, and vertically run through leap portion and two extensions respectively; Described leap portion and two extensions are respectively equipped with the through hole supplying the movement of coupling screw rod; Described three coupling screw rods are positioned at same plane.
2. the dielectric filter that is coupled with metal resonators of adjustable medium according to claim 1, is characterized in that, described metal resonant column and/or dielectric resonance post hollow.
3. the dielectric filter that is coupled with metal resonators of adjustable medium according to claim 2, it is characterized in that, the material of described coupling piece is brass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420532452.XU CN204189933U (en) | 2014-09-17 | 2014-09-17 | The dielectric filter that adjustable medium is coupled with metal resonators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420532452.XU CN204189933U (en) | 2014-09-17 | 2014-09-17 | The dielectric filter that adjustable medium is coupled with metal resonators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204189933U true CN204189933U (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420532452.XU Active CN204189933U (en) | 2014-09-17 | 2014-09-17 | The dielectric filter that adjustable medium is coupled with metal resonators |
Country Status (1)
| Country | Link |
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| CN (1) | CN204189933U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532207A (en) * | 2016-12-20 | 2017-03-22 | 京信通信系统（中国）有限公司 | Hybrid mode radio-frequency filter |
-
2014
- 2014-09-17 CN CN201420532452.XU patent/CN204189933U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532207A (en) * | 2016-12-20 | 2017-03-22 | 京信通信系统（中国）有限公司 | Hybrid mode radio-frequency filter |
| CN106532207B (en) * | 2016-12-20 | 2020-03-17 | 京信通信技术(广州)有限公司 | Mixed mode radio frequency filter |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215000 Taiping Road, Taiping Street, Suzhou, Jiangsu, No. 11, No. Patentee after: Suzhou wave communication technology Limited by Share Ltd Address before: 215000 Taiping Road, Taiping Street, Suzhou, Jiangsu, No. 11, No. Patentee before: SUZHOU PERFECT ELECTRONICS TECHNOLOGY CO., LTD. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215000 11 Xingtai Road, Taiping Street, Xiangcheng District, Suzhou, Jiangsu Patentee after: SUZHOU PERFECT ELECTRONICS TECHNOLOGY CO., LTD. Address before: 215000 11 Xingtai Road, Taiping Street, Xiangcheng District, Suzhou, Jiangsu Patentee before: Suzhou wave communication technology Limited by Share Ltd |