CN101728614B - Method for controlling signal attenuation and cross coupling structure - Google Patents
Method for controlling signal attenuation and cross coupling structure Download PDFInfo
- Publication number
- CN101728614B CN101728614B CN 201010000287 CN201010000287A CN101728614B CN 101728614 B CN101728614 B CN 101728614B CN 201010000287 CN201010000287 CN 201010000287 CN 201010000287 A CN201010000287 A CN 201010000287A CN 101728614 B CN101728614 B CN 101728614B
- Authority
- CN
- China
- Prior art keywords
- resonator
- radio frequency
- frequency connector
- transmission line
- described radio
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a method for controlling signal attenuation. The method comprises the following steps of: arranging a cross coupling structure, which comprises a coaxial cavity filter shell, wherein at least more than three resonators and a plurality of transmission lines are arranged inside the shell, and a radio frequency connector is fixed outside the shell; mutually connecting a firstresonator close to the radio frequency connector with the radio frequency connector through the transmission lines, and then connecting a second resonator or a third resonator with the radio frequency connector through the transmission lines; and changing the lengths and thicknesses of the transmission lines, and changing the connection heights of the transmission lines and the second resonator or the third resonator to realize that the signal generates attenuation poles of the needed frequency at a high end and a lower end of a passband. The lengths (or thicknesses) of the transmission linesare changed, and the connection heights of the transmission lines and the second resonator (the third resonator) are changed so as to realize that the attenuation poles of needed frequency is generated at the high end and the lower end of the passband. The invention also discloses the cross coupling structure for realizing the method.
Description
Technical field
The present invention relates to machine-building and electronic information technical field, relate in particular to a kind of control method of signal attenuation, more relate to a kind of cross coupling structure of realizing this method.
Background technology
Along with developing rapidly of wireless communication technology, the requirement of communication quality is improved constantly, prevent that the signal in the service band from disturbing, improve the utilance of frequency range, but also require integrated, miniaturization.There is very high band degree of inhibition outward on one side to the passband of filter like this, and requires also very high to the Insertion Loss of passband.
The cross-couplings device that existing filter adopts is to introduce coupling window, U-shaped line, coupling dumbbell and absorbing cavity at non-adjacent coaxial resonator to realize.When the connector of filter external form and filter I/O is determined, the joint number of required filter and coupling topological structure also under certain situation, are difficult to realize.
Summary of the invention
The object of the present invention is to provide a kind of control method of signal attenuation, by changing the length (perhaps thickness) of transmission line, and transmission line and the height of the 3rd resonator (the 3rd) when resonator is connected, thereby the high-end or low side that is implemented in passband produces the attenuation pole that needs frequency; Another purpose of the present invention is to provide a kind of cross coupling structure of realizing this method.
For effectively addressing the above problem, the technical scheme that the present invention takes is as follows:
A kind of control method of signal attenuation, its method may further comprise the steps:
(1) cross coupling structure is set, comprises a coaxial cavity fluid filter shell, its inner at least three above resonators and plurality of transmission lines, external stability radio frequency connector of arranging;
(2) will interconnect with described transmission line and described radio frequency connector near first resonator of described radio frequency connector, again the 3rd resonator or the 3rd resonator are connected with described radio frequency connector with described transmission line;
(3) length or the thickness of the described transmission line of change, and described transmission line and the 3rd resonator or the 3rd height that resonator is connected realize that signal produces the attenuation pole that needs frequency at the high-end or low side of passband.
Described radio frequency connector is fixed on described coaxial cavity filter shell one end, inner arrange the inside tie point that links to each other with described transmission line and with described radio frequency connector conducting, what described radio frequency connector link can be signal inputs or outputs end arbitrarily.
When described second or the 3rd resonator linked to each other with described radio frequency connector with described transmission line, selection wherein any resonator linked to each other with described radio frequency connector, does not connect the 3rd resonator and the 3rd resonator simultaneously.
Described transmission line one end is with after described radio frequency connector is connected, the other end by a pedestal be fixed on the 3rd resonator or the 3rd resonator near.
Change length or the thickness of described transmission line, and described transmission line and the 3rd resonator or the 3rd distance that resonator is connected, realize that signal produces the attenuation pole that needs frequency at the high-end or low side of passband.
A kind of cross coupling structure of realizing said method, it comprises a coaxial cavity fluid filter shell, inside comprises at least three above resonators and plurality of transmission lines, an outside end comprises a fixedly connected radio frequency connector, first resonator near described radio frequency connector interconnects with described transmission line and described radio frequency connector, the 3rd resonator or the 3rd resonator are connected with described radio frequency connector with described transmission line, and when described second or the 3rd resonator linked to each other with described radio frequency connector with described transmission line, selecting wherein, any resonator linked to each other with described radio frequency connector.
Described coaxial filter shell is any regular shape, described resonator is any big or small cylindrical structural, and any one can be used as first resonator in the described resonator, and any resonator except described first resonator can be respectively the 3rd resonator and the 3rd resonator.
Described radio frequency connector is fixed on described coaxial cavity filter shell one end, inner arrange the inside tie point that links to each other with described transmission line and with described radio frequency connector conducting, what described radio frequency connector link can be Continuity signal inputs or outputs end arbitrarily, and the linking point that described transmission line is connected with described resonator is not all for fixedly connected arbitrarily.
Also comprise a fixed pedestal near described the 3rd resonator or the 3rd resonator, described transmission line directly interconnects with described pedestal.
Beneficial effect of the present invention is: the control method of signal attenuation provided by the invention is by changing the length (perhaps thickness) of transmission line, and transmission line and the height of the 3rd resonator (the 3rd) when resonator is connected, thereby the high-end or low side that is implemented in passband produces the attenuation pole that needs frequency, be beneficial to the row chamber of filter and the realization of topological structure, and can under same volume, realize better filter characteristic and save cost; Cross coupling structure provided by the invention is under the situation that the connector of filter external form and filter input or output is determined, need not conveniently to realize and to simplify the technological process of machine-shaping realizing at non-adjacent coaxial resonator introducing coupling window, U-shaped line, coupling dumbbell and absorbing cavity.
The present invention is described in detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is cross coupling structure perspective view of the present invention;
Fig. 2 is cross coupling structure Facad structure schematic diagram of the present invention.
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of control method of signal attenuation, its method may further comprise the steps:
(1) cross coupling structure is set, comprises a coaxial cavity fluid filter shell 11, its inner at least three above resonators and plurality of transmission lines, external stability radio frequency connector 21 of arranging;
Described radio frequency connector 21 is fixed on described coaxial cavity filter shell 11 1 ends, inner arrange the inside tie point 43 that links to each other with described transmission line and with described radio frequency connector 21 conductings, what described radio frequency connector 21 links can be signal inputs or outputs end arbitrarily.
(2) will interconnect with described radio frequency connector 21 near the described transmission line 41 of first resonator 31 usefulness of described radio frequency connector 21, again the 3rd resonator 32 or the 3rd the described transmission line 42 of resonator 33 usefulness will be connected with described radio frequency connector 21;
When described second resonator 32 or the 3rd the described transmission line 42 of resonator 33 usefulness link to each other with described radio frequency connector 21, selection wherein any resonator links to each other with described radio frequency connector 21, does not connect the 3rd resonator 32 and the 3rd resonator 33 simultaneously;
Described transmission line 41,42 1 ends and after described radio frequency connector 21 is connected, the other end by a pedestal 51 be fixed on the 3rd resonator 32 or the 3rd resonator 33 near.
(3) length or the thickness of the described transmission line of change, and described transmission line 42 and the 3rd resonator 32 or the 3rd height that resonator 33 is connected realize that signal produces the attenuation pole that needs frequency at the high-end or low side of passband;
Change length or the thickness of described transmission line 42, and described transmission line and the 3rd resonator 32 or the 3rd distance that resonator 33 is connected, realize that signal produces the attenuation pole that needs frequency at the high-end or low side of passband.
Referring to Fig. 1 and Fig. 2, a kind of cross coupling structure of realizing said method, it comprises a coaxial cavity fluid filter shell 11, inside comprises at least three above resonators and plurality of transmission lines, an outside end comprises a fixedly connected radio frequency connector 21, first described transmission line of resonator 31 usefulness and described radio frequency connector 21 near described radio frequency connector 21 interconnect, the 3rd resonator 32 or the 3rd the described transmission line of resonator 33 usefulness are connected with described radio frequency connector 21, and when described second or the 3rd described transmission line of resonator 33 usefulness linked to each other with described radio frequency connector 21, selecting wherein, any resonator linked to each other with described radio frequency connector 21.
Described coaxial filter shell 11 is any regular shape, described resonator is any big or small cylindrical structural, and any one can be used as first resonator 31 in the described resonator, and any resonator except described first resonator 31 can be respectively the 3rd resonator 32 and the 3rd resonator 33.
Described radio frequency connector 21 is fixed on described coaxial cavity filter shell 11 1 ends, inner arrange the inside tie point 43 that links to each other with described transmission line and with described radio frequency connector 21 conductings, what described radio frequency connector 21 links can be Continuity signal inputs or outputs end arbitrarily, and the linking point that described transmission line is connected with described resonator is not all for fixedly connected arbitrarily.Also comprise a fixed pedestal 51 near described the 3rd resonator 32 or the 3rd resonator 33, described transmission line directly interconnects with described pedestal 51.
As shown in Figure 1, novel coupled structure comprises the shell 11 of a coaxial cavity filter; 4 screws of radio frequency connector 21 usefulness are fixed on the shell 11 of filter; Three coaxial cavity resonators, resonator 1 is connected with radio frequency connector 21 by transmission line 41, and resonator 2 32 is connected with radio frequency connector 21 by transmission line 42.
As shown in Figure 2, resonator 1 is connected with radio frequency connector 21 by transmission line 41, and transmission line 42 1 ends are connected with radio frequency connector 21, and the other end is fixed near the resonator 3 33 by metal base 51.By by changing length or the thickness of transmission line, and with the distance of the 3rd resonator 32 or the 3rd resonator 33, thereby the high-end or low side that is implemented in passband produces the attenuation pole that needs frequency.
The present invention is not limited to above-mentioned execution mode, and all employings and analog structure of the present invention or method realize that all execution modes of the object of the invention are all within protection scope of the present invention.
Claims (6)
1. the control method of a signal attenuation is characterized in that, its method may further comprise the steps:
(1) cross coupling structure is set, comprises a coaxial cavity fluid filter shell, its inner at least three above resonators and plurality of transmission lines, external stability radio frequency connector of arranging; Described radio frequency connector is fixed on described coaxial cavity filter shell one end, inner arrange the inside tie point that links to each other with described transmission line and with described radio frequency connector conducting, what described radio frequency connector link can be signal inputs or outputs end arbitrarily;
(2) will interconnect with described transmission line and described radio frequency connector near first resonator of described radio frequency connector, again second resonator or the 3rd resonator are connected with described radio frequency connector with described transmission line;
(3) length or the thickness of the described transmission line of change, and described transmission line and second resonator or the 3rd height that resonator is connected realize that signal produces the attenuation pole that needs frequency at the high-end or low side of passband; Change length or the thickness of described transmission line, and described transmission line and second resonator or the 3rd distance that resonator is connected, realize that signal produces the attenuation pole that needs frequency at the high-end or low side of passband.
2. the control method of signal attenuation according to claim 1, it is characterized in that, described step (2) is further comprising the steps of: when described second or the 3rd resonator links to each other with described radio frequency connector with described transmission line, selection wherein any resonator links to each other with described radio frequency connector, does not connect second resonator and the 3rd resonator simultaneously.
3. the control method of signal attenuation according to claim 1, it is characterized in that, described step (2) is further comprising the steps of: described transmission line one end is with after described radio frequency connector is connected, the other end by a pedestal be fixed on second resonator or the 3rd resonator near.
4. cross coupling structure of realizing the control method of the described signal attenuation of claim 1, it comprises a coaxial cavity fluid filter shell, it is characterized in that, inside comprises at least three above resonators and plurality of transmission lines, an outside end comprises a fixedly connected radio frequency connector, first resonator near described radio frequency connector interconnects with described transmission line and described radio frequency connector, second resonator or the 3rd resonator are connected with described radio frequency connector with described transmission line, and when described second or the 3rd resonator linked to each other with described radio frequency connector with described transmission line, selecting wherein, any resonator linked to each other with described radio frequency connector; Described radio frequency connector is fixed on described coaxial cavity filter shell one end, inner arrange the inside tie point that links to each other with described transmission line and with described radio frequency connector conducting, what described radio frequency connector link can be Continuity signal inputs or outputs end arbitrarily, and the linking point that described transmission line is connected with described resonator is not all for fixedly connected arbitrarily.
5. according to weighing and require 4 described cross coupling structures, it is characterized in that, described coaxial filter shell is any regular shape, described resonator is any big or small cylindrical structural, and any one can be used as first resonator in the described resonator, and any resonator except described first resonator can be respectively second resonator and the 3rd resonator.
6. cross coupling structure according to claim 4 is characterized in that, also comprises a fixed pedestal near described second resonator or the 3rd resonator, and described transmission line directly interconnects with described pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010000287 CN101728614B (en) | 2010-01-07 | 2010-01-07 | Method for controlling signal attenuation and cross coupling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010000287 CN101728614B (en) | 2010-01-07 | 2010-01-07 | Method for controlling signal attenuation and cross coupling structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101728614A CN101728614A (en) | 2010-06-09 |
| CN101728614B true CN101728614B (en) | 2013-09-18 |
Family
ID=42449118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010000287 Expired - Fee Related CN101728614B (en) | 2010-01-07 | 2010-01-07 | Method for controlling signal attenuation and cross coupling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101728614B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202050042U (en) * | 2011-01-27 | 2011-11-23 | 中兴通讯股份有限公司 | Filter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0815612B1 (en) * | 1995-03-23 | 2001-07-11 | Bartley Machine & Manufacturing Company, Inc. | Dielectric resonator filter |
| CN2881986Y (en) * | 2006-03-29 | 2007-03-21 | 摩比天线技术（深圳）有限公司 | Combined cross coupling device |
| CN201011666Y (en) * | 2006-12-28 | 2008-01-23 | 武汉凡谷电子技术股份有限公司 | Band stop filter |
-
2010
- 2010-01-07 CN CN 201010000287 patent/CN101728614B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0815612B1 (en) * | 1995-03-23 | 2001-07-11 | Bartley Machine & Manufacturing Company, Inc. | Dielectric resonator filter |
| CN2881986Y (en) * | 2006-03-29 | 2007-03-21 | 摩比天线技术（深圳）有限公司 | Combined cross coupling device |
| CN201011666Y (en) * | 2006-12-28 | 2008-01-23 | 武汉凡谷电子技术股份有限公司 | Band stop filter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101728614A (en) | 2010-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201063353Y (en) | Cavity filter with naught cavity | |
| CN209691920U (en) | Cavity body filter and cross coupling structure for cavity body filter | |
| CN208782003U (en) | A kind of cross coupling structure and cavity body filter | |
| CN108039543B (en) | Monomer double-circuit filter based on dielectric resonator | |
| CN101465454A (en) | Radio frequency miniature matrix switch | |
| CN103972622A (en) | Cavity filter and communication radio frequency device | |
| CN101728614B (en) | Method for controlling signal attenuation and cross coupling structure | |
| CN201011666Y (en) | Band stop filter | |
| CN206116567U (en) | Precipitous plane of side band duplexer based on band -pass band stop mixed structure | |
| CN103000975B (en) | Cavity body filter | |
| CN203895578U (en) | Filter loading electric field by using coaxial cavity gradually changing spiral tubes | |
| CN203180026U (en) | Cavity filter and communication radio frequency device | |
| CN104282970A (en) | DBR filter and DBR duplexer | |
| CN104241797A (en) | Resonant cavity for coaxial resonant diplexer, and coaxial resonant diplexer thereof | |
| CN203747002U (en) | Ultra-high-frequency band electrically tunable filter | |
| CN201774119U (en) | Blind-mating connecting device in radio remote unit RRU | |
| WO2016173321A1 (en) | Input-output device for multiplexer and multiplexer | |
| CN202217759U (en) | Band elimination filter for inhibiting higher-order modes | |
| CN209418738U (en) | A kind of coupled structure of band-stop response communication headend equipment component | |
| CN103762402B (en) | A kind of cavity body filter | |
| WO2021003836A1 (en) | Filter and multi-zero-point implementation module thereof | |
| CN201210511Y (en) | Wide frequency 3dB electric bridge | |
| CN202333090U (en) | Miniature comb filter | |
| CN205543168U (en) | Low pass filter and have this low pass filter's radio frequency module | |
| CN106848515B (en) | Integrated filter system and antenna system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN GAOXIN DYNAMOELECTRIC TECHNOLOGY SERVINGS Free format text: FORMER OWNER: DONGGUAN CITY SOPOER ELECTRONICS TECHNOLOGY CO., LTD. Effective date: 20130806 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jiang Haiwen Inventor before: Quan Zhigang Inventor before: Wu Zufeng Inventor before: Deng Qingjie Inventor before: Li Dengfeng Inventor before: He Baowei Inventor before: Chen Yongzhi Inventor before: Ye Qifan |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: QUAN ZHIGANG WU ZUFENG DENG QINGJIE LI DENGFENG HE BAOWEI CHEN YONGZHI YE QIFAN TO: JIANG HAIWEN |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20130806 Address after: 523000 Guangdong province Dongguan Nancheng District week Xilong Xi Road No. 5, Goldman Goldman Technology Science Park Building Room 806 Applicant after: Dongguan Gaoxin Mechanical & Electrical Technology Service Co., Ltd. Address before: 523000 productivity building, Songshan science and Technology Industrial Park, Guangdong, Dongguan Province, room 436 Applicant before: Dongguan Supuer Electronic Technology Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN CITY SOPOER ELECTRONICS TECHNOLOGY CO., L Free format text: FORMER OWNER: DONGGUAN GAOXIN DYNAMOELECTRIC TECHNOLOGY SERVINGS CO., LTD. Effective date: 20140619 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tang Xudong Inventor before: Jiang Haiwen |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: JIANG HAIWEN TO: TANG XUDONG |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140619 Address after: 523000, Dongguan City, Guangdong province Songshan Lake hi tech Industrial Development Zone, the northern industrial city small science and technology enterprise park second, third Patentee after: Dongguan Supuer Electronic Technology Co., Ltd. Address before: 523000 Guangdong province Dongguan Nancheng District week Xilong Xi Road No. 5, Goldman Goldman Technology Science Park Building Room 806 Patentee before: Dongguan Gaoxin Mechanical & Electrical Technology Service Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20140107 |