CN108511866B - Power coupler with adjustable impedance automatic matching - Google Patents
Power coupler with adjustable impedance automatic matching Download PDFInfo
- Publication number
- CN108511866B CN108511866B CN201810490645.6A CN201810490645A CN108511866B CN 108511866 B CN108511866 B CN 108511866B CN 201810490645 A CN201810490645 A CN 201810490645A CN 108511866 B CN108511866 B CN 108511866B
- Authority
- CN
- China
- Prior art keywords
- main line
- coupling
- adjustable
- power
- output port
- 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
- 230000008878 coupling Effects 0.000 claims abstract description 48
- 238000010168 coupling process Methods 0.000 claims abstract description 48
- 238000005859 coupling reaction Methods 0.000 claims abstract description 48
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000010295 mobile communication Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/04—Coupling devices of the waveguide type with variable factor of coupling
Landscapes
- Waveguide Aerials (AREA)
- Transmitters (AREA)
Abstract
The invention relates to an impedance automatic matching adjustable power coupler, which comprises a main line, wherein two ends of the main line are respectively provided with an input port and an output port, an auxiliary line coupling sheet is arranged above the main line and is connected to the coupling output port. The adjustable coupler provided by the invention realizes adjustable power coupling, ensures good power flatness and standing waves in the whole frequency band, improves the performance of the system, has unchanged assembly size and position, accelerates the rapid realization of power coupling in an indoor mobile communication system, brings convenience, and has excellent economic benefit and application prospect.
Description
Technical Field
The invention relates to an impedance automatic matching adjustable power coupler, belonging to the technical field of indoor mobile communication systems.
Background
The power coupler is applied to the field of mobile communication, for example, the indoor coverage of large buildings and venues is realized by connecting a high-power POI (combiner system), and the signal strength is reduced by connecting a high-power transmitter to match the input power requirement of the optical fiber repeater. The following should be considered for the requirement of an excellent power coupler:
1. the coupling degree of the power coupler cannot be only one, and the coupling degree can be adjusted, so that the adjustable coupling degree range needs to be large enough; 2. the power coupling degree should not only be weak coupling, but also need strong coupling, and can achieve equal division of all ports, namely 3dB coupling; 3. because of the strict requirements on the power input value in certain occasions, the continuous adjustability of the coupling degree is also an important index, such as the input power of an optical communication repeater: 4. the coupling frequency bandwidth of the coupler should cover the entire mobile communication spectrum; 5. the main line input power can be reflected back to the input port by the standing wave performance of the device to different degrees, and if the coupler has a larger standing wave value or a standing wave jump when in debugging or in a certain coupling position, the transmitter can be damaged due to overlarge reflected power to cause accidents and losses.
The original adjustable technology needs to be realized by using a contact elastic component, is difficult to process and high in cost, and more importantly, the head of the whole adjustable part needs to be moved for a long length, so that the adaptability is poor, the adjustment is troublesome, and the adjustable part cannot be installed in a fixed space position. The original adjustable power coupler can not achieve impedance matching in the adjusting process, can only achieve weak coupling adjustment of 15-30dB, can not be used because standing waves are poor due to overlarge impedance mismatch when being adjusted to strong coupling, and can only use fixed power coupling design at 6-15 dB.
Disclosure of Invention
The purpose of the invention is that: the adjustable power coupling is realized, meanwhile, the power flatness and standing waves in the whole frequency band are guaranteed to be good, and the performance of the system is improved.
In order to achieve the above purpose, the technical scheme of the invention provides an impedance automatic matching adjustable power coupler, which comprises a main line, wherein two ends of the main line are respectively provided with an input port and an output port, and an auxiliary line coupling piece is arranged above the main line and connected to the coupling output port.
Preferably, the power mechanism is an external rotary adjustment switch.
Preferably, the transmission mechanism is a gear transmission pair.
The adjustable power coupler with the automatically matched impedance can be arranged at a fixed space position, and only the knob on the panel is required to be rotated during adjustment, so that the adjustable power coupler is convenient and quick, and can better perform impedance matching to realize strong coupling and adjustable coupling while adjusting the coupling degree through the tuning component, thereby achieving the strong coupling of 6dB which cannot be realized by the original adjustable power coupler. The rotor is automatically locked at any position by the structural optimization design of the rotor, so that stepless (continuous) tuning of coupling degree is truly realized, and standing waves are free from jump during coupling tuning.
The adjustable coupler provided by the invention realizes adjustable power coupling, ensures good power flatness and standing waves in the whole frequency band, improves the performance of the system, has unchanged assembly size and position, accelerates the rapid realization of power coupling in an indoor mobile communication system, brings convenience, and has excellent economic benefit and application prospect.
Drawings
Fig. 1 is a schematic structural diagram of an impedance auto-matching adjustable power coupler according to the present invention.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
As shown in fig. 1, the adjustable power divider provided by the invention comprises a main line 1, a secondary line coupling piece 2, a coupling output port 3, an adjustable component 4 (rotor) and a gear transmission pair 5.
The main line 1 is in a straight shape, and two ends of the main line are respectively an input port and an output port. The sub-line coupling tab 2 is connected to a coupling output port 3, the coupling output port 3 being for outputting a coupling signal. An adjustable component 4 is arranged between the main line 1 and the auxiliary line coupling sheet 2. The gear transmission pair 5 is driven to rotate by rotating the adjusting switch outside the cavity, so that the adjustable component 4 is driven to rotate around the main line 1, the coupling degree is adjusted by rotating the adjustable component 4, and power distribution with different proportions is realized. When the adjustable component 4 is screwed between the main line 1 and the auxiliary line coupling piece 2, the maximum coupling (6 dB) is achieved, and the adjustable component 4 is screwed below the main line 1 and the weakest coupling (20 dB) is achieved. When the adjustable component 4 rotates, the structures of the cavity, the main line 1 and the adjustable component 4 are optimized, so that impedance matching of any coupling degree is realized, and excellent standing wave performance of the main line is realized while 6-20dB power distribution adjustability is realized.
When the input port and the output port are operated by the adjustable components, the positions of the ports are kept unchanged, the bandwidth of the design can be from 694MHz to 2700MHz, and through impedance matching, the coupling degree can be adjusted to be 6dB at maximum, and the design has very good standing waves. The power distribution can be adjusted to proper power distribution in different frequency bands according to the power requirements, the size of the power distribution is ensured not to change, and the practicability is good. The mounting position of the packaging device does not need to be changed after packaging because of being adjustable.
Claims (2)
1. The utility model provides an impedance automatic matching adjustable power coupler, including main line (1), main line (1) is the style of calligraphy, the both ends of main line (1) are input port and output port respectively, be equipped with auxiliary line coupling piece (2) above main line (1), auxiliary line coupling piece (2) are connected to coupling output port (3), main line (1) and auxiliary line coupling piece (2) all set up in the cavity, characterized in that, be equipped with adjustable components and parts (4) that can rotate around main line (1) axis on main line (1), drive adjustable components and parts (4) rotatory through drive mechanism by power unit, be the biggest coupling when adjustable components and parts (4) revolve to between main line (1) and auxiliary line coupling piece (2), be weakest coupling when adjustable components and parts (4) rotate to main line (1) below, power unit is the outside rotatory regulation switch of cavity.
2. An impedance auto-matching adjustable power coupler according to claim 1, characterized in that the transmission means is a gear transmission pair (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810490645.6A CN108511866B (en) | 2018-05-18 | 2018-05-18 | Power coupler with adjustable impedance automatic matching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810490645.6A CN108511866B (en) | 2018-05-18 | 2018-05-18 | Power coupler with adjustable impedance automatic matching |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108511866A CN108511866A (en) | 2018-09-07 |
| CN108511866B true CN108511866B (en) | 2024-01-30 |
Family
ID=63401124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810490645.6A Active CN108511866B (en) | 2018-05-18 | 2018-05-18 | Power coupler with adjustable impedance automatic matching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108511866B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113782934A (en) * | 2021-10-18 | 2021-12-10 | 大连奥瑞科技有限公司 | Variable high-power radio frequency distributor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04119001A (en) * | 1990-09-07 | 1992-04-20 | Nippon Telegr & Teleph Corp <Ntt> | Directional coupler |
| US5319313A (en) * | 1990-06-08 | 1994-06-07 | Siemens Ag | Power coupler with adjustable coupling factor for accelerator cavities |
| US5994977A (en) * | 1997-08-29 | 1999-11-30 | Yashima Denken Kabushiki Kaisya | High frequency signal directional coupling line |
| JP2002016409A (en) * | 2000-06-29 | 2002-01-18 | Japan Aviation Electronics Industry Ltd | Directional coupler |
| CN204271237U (en) * | 2014-12-17 | 2015-04-15 | 成都海泰库博科技有限公司 | A kind of DC feedback directional coupler |
| CN204651457U (en) * | 2015-06-15 | 2015-09-16 | 武汉凡谷电子技术股份有限公司 | The adjustable directional coupler of a kind of coupling line |
| CN105811060A (en) * | 2016-05-18 | 2016-07-27 | 中国电子科技集团公司第四十研究所 | Coupling degree adjustable directional coupler |
| CN107482294A (en) * | 2017-09-17 | 2017-12-15 | 东莞市松研智达工业设计有限公司 | Clad type oriented opposite coupler |
| CN108039551A (en) * | 2017-12-28 | 2018-05-15 | 荆门市亿美工业设计有限公司 | A kind of multigroup longitudinally connected directional coupler combination |
| CN208423117U (en) * | 2018-05-18 | 2019-01-22 | 斯必能通讯器材(上海)有限公司 | The adjustable power coupler of impedance auto-match |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7183876B2 (en) * | 2003-04-04 | 2007-02-27 | Electronics Research, Inc. | Variable coupling factor directional coupler |
| US8228136B2 (en) * | 2009-03-05 | 2012-07-24 | Powerwave Technologies, Inc. | Micro P-coupler |
-
2018
- 2018-05-18 CN CN201810490645.6A patent/CN108511866B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5319313A (en) * | 1990-06-08 | 1994-06-07 | Siemens Ag | Power coupler with adjustable coupling factor for accelerator cavities |
| JPH04119001A (en) * | 1990-09-07 | 1992-04-20 | Nippon Telegr & Teleph Corp <Ntt> | Directional coupler |
| US5994977A (en) * | 1997-08-29 | 1999-11-30 | Yashima Denken Kabushiki Kaisya | High frequency signal directional coupling line |
| JP2002016409A (en) * | 2000-06-29 | 2002-01-18 | Japan Aviation Electronics Industry Ltd | Directional coupler |
| CN204271237U (en) * | 2014-12-17 | 2015-04-15 | 成都海泰库博科技有限公司 | A kind of DC feedback directional coupler |
| CN204651457U (en) * | 2015-06-15 | 2015-09-16 | 武汉凡谷电子技术股份有限公司 | The adjustable directional coupler of a kind of coupling line |
| CN105811060A (en) * | 2016-05-18 | 2016-07-27 | 中国电子科技集团公司第四十研究所 | Coupling degree adjustable directional coupler |
| CN107482294A (en) * | 2017-09-17 | 2017-12-15 | 东莞市松研智达工业设计有限公司 | Clad type oriented opposite coupler |
| CN108039551A (en) * | 2017-12-28 | 2018-05-15 | 荆门市亿美工业设计有限公司 | A kind of multigroup longitudinally connected directional coupler combination |
| CN208423117U (en) * | 2018-05-18 | 2019-01-22 | 斯必能通讯器材(上海)有限公司 | The adjustable power coupler of impedance auto-match |
Non-Patent Citations (3)
| Title |
|---|
| "A Tunable Reflecting Load for Multipactor Processing of the RF Power Coupler of a Superconducting Cavity";Ch. Wang 等;《IEEE Transactions on Applied Superconductivity》;全文 * |
| "可调频高功率宽谱微波的产生和辐射";廖勇 等;《强激光与粒子束》;全文 * |
| "盘荷同轴腔可调滤波器特性";郑家骏 等;《1999全国微波毫米波会议论文集》;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108511866A (en) | 2018-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203225337U (en) | Ku/Ka four-frequency band multi-polarization feed source | |
| CN102299424B (en) | Dual-frequency dual-polarized feed assembly in C frequency band | |
| CN108598703B (en) | Broadband C-band circularly polarized four-port feed source network | |
| CN208208945U (en) | Built-in isolator waveguide loopback duplexer | |
| CN106025571A (en) | Ku-frequency-band transmitting-receiving linear and circular polarization multiplexing feed source network | |
| CN108511866B (en) | Power coupler with adjustable impedance automatic matching | |
| US20200322066A1 (en) | Double-antenna radio frequency power detection circuit and apparatus, and mobile terminal | |
| CN113471686A (en) | Active integrated electrically-modulated polarized transmitting-receiving panel antenna | |
| CN212542699U (en) | Polarization switching control device for satellite antenna feed source transition waveguide | |
| CN110085981B (en) | Double-frequency satellite antenna variable polarization feed source | |
| EP3108586B1 (en) | Reflective-type antenna band and polarization selectable transceiver using a rotatable quarter-wave plate | |
| CN105024175A (en) | Ku broadband linear-polarization four-port feed network | |
| CN208423117U (en) | The adjustable power coupler of impedance auto-match | |
| CN115101913A (en) | Direct current coupler | |
| CN107733463B (en) | Satellite communication transceiver duplex system and front-end feed source system | |
| CN103094718B (en) | Ka frequency range miniaturization broadband multimode auto-tracking feed source network | |
| CN112615162B (en) | Common-caliber three-frequency multi-mode horn antenna | |
| CN114188689B (en) | Broadband receiving and transmitting shared coaxial waveguide duplexer | |
| CN204258807U (en) | A kind of integrated bidirectional mobile communication satellite small station | |
| CN209641844U (en) | A kind of polarizer structure | |
| CN114824694A (en) | Waveguide channel switching device | |
| CN219419529U (en) | Multi-frequency electrically tunable filter antenna unit | |
| CN103208978A (en) | Broadband self-adaption harmonic elimination device based on method of images | |
| CN109494479B (en) | Ka-band dual-frequency dual-polarization receiving and transmitting common feed source | |
| CN114361791B (en) | Broadband double-circular polarization high-isolation K and Ka double-frequency feed source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |