CN202678485U - A novel cross coupling filter - Google Patents
A novel cross coupling filter Download PDFInfo
- Publication number
- CN202678485U CN202678485U CN 201220217834 CN201220217834U CN202678485U CN 202678485 U CN202678485 U CN 202678485U CN 201220217834 CN201220217834 CN 201220217834 CN 201220217834 U CN201220217834 U CN 201220217834U CN 202678485 U CN202678485 U CN 202678485U
- Authority
- CN
- China
- Prior art keywords
- resonant
- resonant rod
- rod
- resonant cavity
- cavity
- 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
Abstract
The utility model discloses a novel cross coupling filter comprising a housing body and a cover plate. Four resonant cavities are disposed inside the housing body while each resonant cavity is equipped with a resonant rod. A first resonant rod is coupled to a second resonant rod. The second resonant rod is coupled to a third resonant rod. The third resonant rod is coupled to a fourth resonant rod. The fourth resonant rod is coupled to the first resonant rod. The coupling mode between the fourth resonant rod and the first resonant rod is a stepped cross coupling mode. With simple structure and easy assembly, the cross coupling filter increases intermodulation index on the original basis, reduces production processes, achieves an ideal rectangle coefficient, and reduces production cost while increasing reliability.
Description
Technical field
The utility model relates to mobile communication system processing unit technical field, relates in particular to a kind of novel crossed coupling filter.
Background technology
In existing filter, complex structure, assembling is inconvenient, and production process is many, and production cost is high, and reliability is bad, and the loss of signal transmission is large, and properties of product are bad.
The utility model content
The utility model purpose is exactly in order to remedy the defective of prior art, a kind of cross-coupled filter easy to assembly simple in structure to be provided.
The utility model is achieved through the following technical solutions:
A kind of novel crossed coupling filter, comprise housing and the cover plate corresponding with hull shape, four cavitys in described housing, have been dug, be resonant cavity, be respectively equipped with resonant rod in each resonant cavity, described cover plate covers the opening part of described housing, wherein, resonant rod in first resonant cavity and second resonant rod formation coupling that resonant cavity is interior, second resonant rod and the 3rd resonant rod formation coupling that resonant cavity is interior that resonant cavity is interior, the 3rd resonant rod and the 4th resonant rod formation coupling that resonant cavity is interior that resonant cavity is interior, the 4th interior resonant rod and the resonant rod in first resonant cavity of resonant cavity forms coupling, wherein, the coupled modes between the 4th resonant rod and first resonant rod are staged cross-couplings mode.
The utility model has the advantages that: simple in structure, easy to assembly, can improve the intermodulation index on original basis, reduce production process, and can reach desirable squareness factor, when increasing reliability, reduce production costs.
Description of drawings
Fig. 1 is structural representation of the present utility model
Fig. 2 is staged cross-couplings mode schematic diagram.
Embodiment
As shown in Figure 1, a kind of novel crossed coupling filter, comprise housing 9 and the cover plate corresponding with hull shape, four cavitys in described housing 9, have been dug, be resonant cavity 1,3,5,7, be respectively equipped with resonant rod 2 in each resonant cavity, 4,6,8, described cover plate covers the opening part of described housing 9, wherein, resonant rod 2 in first resonant cavity 1 forms with resonant rod 4 in second resonant cavity 3 and is coupled, resonant rod 4 in second resonant cavity 3 forms with resonant rod 6 in the 3rd resonant cavity 5 and is coupled, resonant rod 6 in the 3rd resonant cavity 5 forms with resonant rod 8 in the 4th resonant cavity 7 and is coupled, resonant rod 8 in the 4th resonant cavity 7 forms coupling with resonant rods 2 in first resonant cavity 1, it is characterized in that: the coupled modes between the 4th resonant rod 8 and first resonant rod 2 are staged cross-couplings mode.
Claims (1)
1. novel crossed coupling filter, comprise housing and the cover plate corresponding with hull shape, four cavitys in described housing, have been dug, be resonant cavity, be respectively equipped with resonant rod in each resonant cavity, described cover plate covers the opening part of described housing, wherein, resonant rod in first resonant cavity and second resonant rod formation coupling that resonant cavity is interior, second resonant rod and the 3rd resonant rod formation coupling that resonant cavity is interior that resonant cavity is interior, the 3rd resonant rod and the 4th resonant rod formation coupling that resonant cavity is interior that resonant cavity is interior, the 4th interior resonant rod and the resonant rod in first resonant cavity of resonant cavity forms coupling, and it is characterized in that: the coupled modes between the 4th resonant rod and first resonant rod are staged cross-couplings mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220217834 CN202678485U (en) | 2012-05-15 | 2012-05-15 | A novel cross coupling filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220217834 CN202678485U (en) | 2012-05-15 | 2012-05-15 | A novel cross coupling filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202678485U true CN202678485U (en) | 2013-01-16 |
Family
ID=47499365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220217834 Expired - Fee Related CN202678485U (en) | 2012-05-15 | 2012-05-15 | A novel cross coupling filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202678485U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390778A (en) * | 2015-12-22 | 2016-03-09 | 江苏贝孚德通讯科技股份有限公司 | 13-14 open-type cross coupling structure |
| WO2021004544A1 (en) * | 2019-07-11 | 2021-01-14 | 中兴通讯股份有限公司 | Filter coupling unit and filter |
| 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 |
-
2012
- 2012-05-15 CN CN 201220217834 patent/CN202678485U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390778A (en) * | 2015-12-22 | 2016-03-09 | 江苏贝孚德通讯科技股份有限公司 | 13-14 open-type cross coupling structure |
| CN105390778B (en) * | 2015-12-22 | 2019-02-01 | 江苏贝孚德通讯科技股份有限公司 | A kind of open cross coupling structure of 13-14 |
| WO2021004544A1 (en) * | 2019-07-11 | 2021-01-14 | 中兴通讯股份有限公司 | Filter coupling unit and filter |
| 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 |
|---|---|---|
| CN202678485U (en) | A novel cross coupling filter | |
| CN102013538A (en) | Cross coupling flying rod-free microwave filter with multiple transmission zeros | |
| CN202662759U (en) | Novel high-time-delay balance coupling filter | |
| CN201508898U (en) | Microwave directional coupler with embedded connector | |
| CN203166050U (en) | Optimized band elimination filter | |
| CN201877545U (en) | Microwave filter with multiple transmission zeros and no cross coupling fly rod | |
| CN202797233U (en) | High-frequency directional coupler | |
| CN202977664U (en) | Double-layer cavity radio frequency device | |
| CN204088527U (en) | There is positive and negative convertible cross-linked waveguide duplexer | |
| CN203800155U (en) | Low intermodulation same frequency combiner | |
| CN203445384U (en) | New type USB shrapnel-type adapter | |
| CN203201993U (en) | Connecting shaft | |
| CN201508977U (en) | Low-loss high-frequency glass media insulator | |
| CN203104273U (en) | Dual-component anti-interference filter | |
| CN205680772U (en) | There is the combiner of temperature drift compensation | |
| CN201877547U (en) | Asymmetric regular coupling cascade filter capable of realizing good harmonic suppression response | |
| CN204118222U (en) | Low-loss height intermodulation 4G filter | |
| CN203481346U (en) | Waveguide duplexer integrated with coupler | |
| CN204361222U (en) | A kind of coaxial filter | |
| CN201838634U (en) | False battery core for laptop battery | |
| CN204333193U (en) | The logical mixer of band | |
| CN203644553U (en) | Winding mould for oil immersed amorphous alloy transformer | |
| CN202134641U (en) | Radio frequency window coupling body filter | |
| CN201829598U (en) | Coupler cavity | |
| CN202659866U (en) | Upper box of reduction gearbox |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20150515 |
|
| EXPY | Termination of patent right or utility model |