CN105337004A - Duplexer with quasi-stripline structure - Google Patents
Duplexer with quasi-stripline structure Download PDFInfo
- Publication number
- CN105337004A CN105337004A CN201510833572.2A CN201510833572A CN105337004A CN 105337004 A CN105337004 A CN 105337004A CN 201510833572 A CN201510833572 A CN 201510833572A CN 105337004 A CN105337004 A CN 105337004A
- Authority
- CN
- China
- Prior art keywords
- duplexer
- strip lines
- resonant column
- lines configuration
- accurate strip
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a duplexer with a quasi-stripline structure. The duplexer comprises a duplexer body, wherein the duplexer body is provided with an antenna port, a transmitting port and a receiving port. The duplexer is characterized in that the duplexer body is internally provided with two filtering cavities; a plurality of resonant posts are arranged in the filtering cavities and on rib blocks at the bottoms of the filtering cavities to form a quasi-stripline structure; and a cross-coupling copper sheet is arranged on the waists of the resonant posts. The duplexer has the main characteristics that the resonant posts and the rib blocks are arranged in a stripline structure similar to a rectangle, thus effectively solving the problems of difficulty in achieving cross-coupling mechanical structures in traditional straight cavity arrangement structures, high coupled rib blocks, complexity in machining, and the like, and achieving miniaturization of the duplexer.
Description
Technical field
The present invention relates to telecommunications field, particularly relate to a kind of duplexer realizing the accurate strip lines configuration of the miniaturization of communication equipment.
Background technology
Along with the development of the communication technology, the volume requirement of operator to communication equipment is more and more less, solving the most effective way of communication equipment volume is the volume reducing all parts in communication equipment, and radio-frequency front-end duplexer often occupies sizable volume in a communications device.
Current operator not only requires that the electrical performance indexes of duplexer is strict but also also require miniaturization to the volume of product.Straight chamber arrangement mode is highly effective reduced volume means in light of this situation.Existing straight chamber arrangement duplexer partial structurtes as shown in Figure 1, 2, comprise duplexer body 1, resonant column 2, coupling muscle block 3 and cross-couplings copper sheet 4, strutting piece 5.
Fig. 1,2 structure major defects are: 1, spatial volume is limited causes cross-couplings copper sheet 4 complicated in mechanical structure, and when duplexer body 1 lateral separation requires less, cross-couplings copper sheet 4 physical structure may be caused not realize; 2, for the duplexer that passband is wider, the height of coupling muscle block 3 too highly may cause that difficulty of processing is large, volume weight, and requirement on machining accuracy is high.These are all the miniaturized duplexer design limitations of straight chamber arrangement, and object processing cost can obviously increase, and loses the market competitiveness.
Summary of the invention
The object of the invention is the defect for existing straight chamber arrangement mode duplexer, provides a kind of cross-couplings easily to realize and consistency is good, realizes the duplexer of the accurate strip lines configuration of miniaturized easily processing low cost.
The present invention for achieving the above object, adopts following technical scheme:
A kind of duplexer of accurate strip lines configuration, comprise duplexer body, described duplexer body have antenna port, emission port and receiving port, it is characterized in that: there are in described duplexer body two filtering cavitys, in described filtering cavity, there is multiple resonant column, described multiple resonant column is arranged on the muscle block of filtering cavity bottom, forms accurate strip lines configuration, and described resonant column waist is provided with cross-couplings copper sheet.
It is further characterized in that: the structure that described resonant column and muscle block are formed in one, and this integrative-structure shape is similar to rectangular strip shape line.
In order to reduce frequency, described resonant column top is provided with ring flange.
Described resonant column top has the screw top mouth for fixed flange, and waist has the side screwed hole for fixing cross-couplings copper sheet; There is bottom described muscle block the bottom thread hole for being fixed on duplexer body bottom portion.
Described ring flange is square or round.
Main feature of the present invention is: resonant column and muscle block are arranged to the accurate strip lines configuration of similar rectangle, and efficiently solve cross-couplings mechanical structure difficulty in the arrangement architecture of tradition straight chamber and realize, coupling muscle block is high, and the problems such as processed complex, achieve duplexer miniaturization.
Accompanying drawing explanation
Fig. 1 is existing straight chamber arrangement duplexer vertical view.
Fig. 2 is existing straight chamber arrangement duplexer cutaway view.
Fig. 3 is the accurate strip lines configuration partial schematic diagram of the present invention.
Fig. 4 is vertical view of the present invention.
Fig. 5 is cutaway view of the present invention.
Fig. 6 is stereogram of the present invention.
Embodiment
Below in conjunction with instantiation, the present invention is described in more detail.
As shown in Figure 3, a kind of partial schematic diagram of duplexer of accurate strip lines configuration: comprise resonant column 2, muscle block 3, bottom thread hole 8, screw top hole 6, side screwed hole 7.Resonant column 2 and muscle block 3 mainly realize the electrical property of duplexer: frequency and bandwidth.Bottom thread hole 8 is for fixing, and screw top hole 6 is for mounting flange 9, and side screwed hole 7 installs cross-couplings inductance or electric capacity.
Fig. 4-6 is the 800MHz duplexers adopting accurate strip lines configuration shown in Fig. 3, and comprise duplexer body 1, rectangular strip shape line structure, ring flange 9 and cross-couplings copper sheet 4, this duplexer cross-couplings mechanical structure easily realizes, and coupling muscle block is low.The relative bandwidth of this duplexer is 3.7%, and overall dimension is 123.7 × 28.7 × 26mm
In sum, adopt technical solution of the present invention, broken the limitation causing duplexer to design because volume is limited, achieved the object of communication equipment miniaturization.
The above is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For any people being familiar with this technology and field thereof, without departing from the inventive concept of the premise, various deduction or change may be made, all should belong to protection scope of the present invention.
Claims (5)
1. the duplexer of an accurate strip lines configuration, comprise duplexer body, described duplexer body have antenna port, emission port and receiving port, it is characterized in that: there are in described duplexer body two filtering cavitys, in described filtering cavity, there is multiple resonant column, described multiple resonant column is arranged on the muscle block of filtering cavity bottom, forms accurate strip lines configuration, and described resonant column waist is provided with cross-couplings copper sheet.
2. the duplexer of accurate strip lines configuration according to claim 1, is characterized in that: the structure that described resonant column and muscle block are formed in one.
3. the duplexer of accurate strip lines configuration according to claim 1 and 2, is characterized in that: described resonant column top is provided with ring flange.
4. the duplexer of accurate strip lines configuration according to claim 3, is characterized in that: described resonant column top has the screw top mouth for fixed flange, and waist has the side screwed hole for fixing cross-couplings copper sheet; There is bottom described muscle block the bottom thread hole for being fixed on duplexer body bottom portion.
5. the duplexer of accurate strip lines configuration according to claim 3, is characterized in that: described ring flange is square or round.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510833572.2A CN105337004A (en) | 2015-11-25 | 2015-11-25 | Duplexer with quasi-stripline structure |
| PCT/CN2016/080087 WO2017088348A1 (en) | 2015-11-25 | 2016-04-23 | Duplexer with quasi-stripline structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510833572.2A CN105337004A (en) | 2015-11-25 | 2015-11-25 | Duplexer with quasi-stripline structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105337004A true CN105337004A (en) | 2016-02-17 |
Family
ID=55287399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510833572.2A Pending CN105337004A (en) | 2015-11-25 | 2015-11-25 | Duplexer with quasi-stripline structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105337004A (en) |
| WO (1) | WO2017088348A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017088348A1 (en) * | 2015-11-25 | 2017-06-01 | 江苏贝孚德通讯科技股份有限公司 | Duplexer with quasi-stripline structure |
| CN111786069A (en) * | 2019-04-04 | 2020-10-16 | 上海诺基亚贝尔股份有限公司 | Resonator and filter |
| CN113224496A (en) * | 2021-06-03 | 2021-08-06 | 苏州波发特电子科技有限公司 | Cross coupling structure of filter |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111180842A (en) * | 2020-03-24 | 2020-05-19 | 江苏贝孚德通讯科技股份有限公司 | Cavity filter |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202495562U (en) * | 2012-03-22 | 2012-10-17 | 深圳市大富科技股份有限公司 | Cavity filter |
| CN202695684U (en) * | 2012-07-16 | 2013-01-23 | 苏州市大富通信技术有限公司 | Cavity filter |
| CN202797197U (en) * | 2012-07-30 | 2013-03-13 | 苏州易特诺科技股份有限公司 | Multipath diplexer |
| CN103066354A (en) * | 2012-12-31 | 2013-04-24 | 深圳市大富科技股份有限公司 | Cavity filter |
| CN202977665U (en) * | 2012-12-12 | 2013-06-05 | 深圳市大富科技股份有限公司 | Cavity filter and communication radiofrequency device |
| CN103972624A (en) * | 2013-01-31 | 2014-08-06 | 国基电子（上海）有限公司 | Filter |
| CN104752796A (en) * | 2013-12-31 | 2015-07-01 | 成都市大富科技有限公司 | Cavity filter and radio remote device |
| CN205429119U (en) * | 2015-11-25 | 2016-08-03 | 江苏贝孚德通讯科技股份有限公司 | Duplexer of accurate stripline structure |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201725862U (en) * | 2010-03-29 | 2011-01-26 | 京信通信系统（中国）有限公司 | Cavity radiofrequency device and flying stem for coupling interaction |
| CN101800347B (en) * | 2010-03-29 | 2014-08-13 | 京信通信系统（中国）有限公司 | Cavity radio frequency device and fly bar thereof for capacitive cross coupling |
| CN201887139U (en) * | 2010-09-20 | 2011-06-29 | 深圳市国人射频通信有限公司 | Duplexer |
| CN202339967U (en) * | 2011-11-17 | 2012-07-18 | 武汉虹信通信技术有限责任公司 | Device for realizing tunable capacitive cross coupling |
| CN102593564B (en) * | 2012-03-29 | 2015-06-03 | 深圳市大富科技股份有限公司 | Cavity filter cross-coupling structure and cavity filter |
| CN202633487U (en) * | 2012-03-29 | 2012-12-26 | 深圳市大富科技股份有限公司 | Cavity filter cross coupling structure and cavity filter |
| CN203386875U (en) * | 2013-06-04 | 2014-01-08 | 深圳市大富科技股份有限公司 | A cavity filter |
| CN204144407U (en) * | 2014-09-30 | 2015-02-04 | 东莞洲亮通讯科技有限公司 | A kind of filter capacity cross coupling structure |
| CN105337004A (en) * | 2015-11-25 | 2016-02-17 | 江苏贝孚德通讯科技股份有限公司 | Duplexer with quasi-stripline structure |
-
2015
- 2015-11-25 CN CN201510833572.2A patent/CN105337004A/en active Pending
-
2016
- 2016-04-23 WO PCT/CN2016/080087 patent/WO2017088348A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202495562U (en) * | 2012-03-22 | 2012-10-17 | 深圳市大富科技股份有限公司 | Cavity filter |
| CN202695684U (en) * | 2012-07-16 | 2013-01-23 | 苏州市大富通信技术有限公司 | Cavity filter |
| CN202797197U (en) * | 2012-07-30 | 2013-03-13 | 苏州易特诺科技股份有限公司 | Multipath diplexer |
| CN202977665U (en) * | 2012-12-12 | 2013-06-05 | 深圳市大富科技股份有限公司 | Cavity filter and communication radiofrequency device |
| CN103066354A (en) * | 2012-12-31 | 2013-04-24 | 深圳市大富科技股份有限公司 | Cavity filter |
| CN103972624A (en) * | 2013-01-31 | 2014-08-06 | 国基电子（上海）有限公司 | Filter |
| CN104752796A (en) * | 2013-12-31 | 2015-07-01 | 成都市大富科技有限公司 | Cavity filter and radio remote device |
| CN205429119U (en) * | 2015-11-25 | 2016-08-03 | 江苏贝孚德通讯科技股份有限公司 | Duplexer of accurate stripline structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017088348A1 (en) * | 2015-11-25 | 2017-06-01 | 江苏贝孚德通讯科技股份有限公司 | Duplexer with quasi-stripline structure |
| CN111786069A (en) * | 2019-04-04 | 2020-10-16 | 上海诺基亚贝尔股份有限公司 | Resonator and filter |
| US12040523B2 (en) | 2019-04-04 | 2024-07-16 | Nokia Solutions And Networks Oy | Resonator and filter |
| CN113224496A (en) * | 2021-06-03 | 2021-08-06 | 苏州波发特电子科技有限公司 | Cross coupling structure of filter |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017088348A1 (en) | 2017-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10873119B2 (en) | Filter and wireless network device | |
| CN105337004A (en) | Duplexer with quasi-stripline structure | |
| CN107534197A (en) | Dielectric filter, transceiver and base station | |
| AU2017375168B2 (en) | High-performance band-stop filter and communications cavity device thereof | |
| CN207925634U (en) | A kind of three mode filter of medium based on capacitive load and aperture coupled | |
| CN106099268A (en) | A kind of broadband merit filter-divider | |
| CN103378388A (en) | Coaxial wide-band filter | |
| EP3168989A1 (en) | Lowpass filter | |
| CN105958164A (en) | Cross-coupled bandpass filter with suspended strip lines | |
| CN102790250A (en) | Wide-band multi-mode filter | |
| CN205429119U (en) | Duplexer of accurate stripline structure | |
| CN101834326B (en) | Double-passband filter with left-hand performance | |
| CN105304979A (en) | Three-mode three-passband microwave filter based on SIW | |
| WO2014117482A1 (en) | Novel low-pass filtering path and communication cavity device using same | |
| CN105206905A (en) | Wide-stop-band three-mode dual-passband filter based on cross type multimode resonators | |
| CN105655676A (en) | Waveguide duplexer | |
| CN206364163U (en) | A kind of band resistance combiner of same frequency ultra-wide passband | |
| CN106532201A (en) | Miniature wide stop band dual-mode balance band-pass filter based on annular resonator | |
| CN208208942U (en) | A kind of perception cross coupling structure | |
| CN108258371A (en) | A kind of three mode filter of medium based on capacitive load and aperture coupled | |
| CN104409813A (en) | Vertical interdigital filter based on source-load coupling | |
| CN102299394B (en) | Supernormal medium ultrahigh frequency band pass filter | |
| US20160372810A1 (en) | Multi-Band RF Monoblock Filter | |
| CN105356028A (en) | Design method for miniaturization high selectivity coupling loop type band pass filter | |
| ES2900357T3 (en) | Input/output device for multiplexer and multiplexer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160217 |
|
| RJ01 | Rejection of invention patent application after publication |