CN104218939A - Adjustable hybrid coupler circuit - Google Patents
Adjustable hybrid coupler circuit Download PDFInfo
- Publication number
- CN104218939A CN104218939A CN201410473965.2A CN201410473965A CN104218939A CN 104218939 A CN104218939 A CN 104218939A CN 201410473965 A CN201410473965 A CN 201410473965A CN 104218939 A CN104218939 A CN 104218939A
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- Prior art keywords
- hybrid coupler
- circuit
- adjustable
- coupler
- coupler circuit
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- Microwave Amplifiers (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses an adjustable hybrid coupler circuit. The circuit structure is realized through a broadband matching network, a high-impedance transmission line, a coupler and a distributed adjustable capacitor. The adjustable hybrid coupler circuit can be widely applied to the places with strict requirements on signal performances such as a RF mobile communication system, a radar antenna and a RFID transceiver, can suppress out-of-band noise, and can improve the stability of the electronic circuit. Meanwhile, compared with the hybrid coupler circuits in other structures, the adjustable hybrid coupler circuit can realize adjustability of the coupler and can be applied to different frequency bands of a communication system.
Description
Technical field
The present invention is coupler, is in particular adjustable chaos coupler, in mobile communication and RF circuitry, has important application.
Background technology
In the last few years, a series of research about coupler circuit had been carried out both at home and abroad.Achieve a lot of achievement in research, be especially used in mobile communication technology, be used in power-amplifier front-end and radar antenna feed part, coupler circuit effectively can solve the large problem of system passband external noise.But its project organization can only use in specific frequency range, and bandwidth is less, make system bulk comparatively large, and versatility is not strong.Simultaneously traditional coupler circuit is due to the problem of its circuit structure, and make temperature sensitivity extremely strong, applicability is very limited.The present invention is directed to above problem, can effectively solve, to meet system requirements, and stability is high, volume is little, compact conformation, processing are simple, applied widely.
Summary of the invention
The invention provides and a kind of there is adjustable, that structure is simple, volume is little, stability is high hybrid coupler circuit.
The technical scheme realizing the object of the invention is: a kind of adjustable hybrid coupler circuit, handbag draw together four ports (1 ~ 4), by serial stub structure the coupler that forms of broadband matching network, high resistant transmission line and distributed tunable capacitor realize; Wherein each port connects a broadband matching network be made up of Coupled Serial stub and is connected; Hybrid coupler is made up of shunt capacitance and high-impedance transmission line; Each port all connects 50 ohmages.
Compared with prior art, the invention provides the feature that a kind of adjustable, structure is simple, multiband, compact conformation, stability are high.
Accompanying drawing explanation
Fig. 1 is a kind of adjustable hybrid coupler circuit of the present invention.
Fig. 2 is the response of embodiment of the present invention S parameter.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Composition graphs 1, the present invention is a kind of adjustable hybrid coupler circuit, comprise four ports (1 ~ 4), by serial stub structure the coupler that forms of broadband matching network, high resistant transmission line and distributed tunable capacitor realize; Wherein each port connects a broadband matching network be made up of Coupled Serial stub and is connected; Hybrid coupler is made up of shunt capacitance and high-impedance transmission line; Each port all connects 50 ohmages.
Designed this kind of adjustable coupler can be used in 5.8GRFID reader transceiver, and as shown in Figure 2, as can be seen from Figure 2, this coupler has wider coupling bandwidth to the response of its S parameter, and Output rusults is good.Result is used to show that this device has good degree of suppression to channel receiver pulse and noise level, effectively overcome and adopt the problem that in traditional design process, design procedure is too complicated, volume is excessive, can ensure that device obtains best channel signal transmission effect.
Claims (2)
1. an adjustable hybrid coupler circuit, is characterized in that: comprise four ports (1 ~ 4), by serial stub structure the coupler that forms of broadband matching network, high resistant transmission line and distributed tunable capacitor realize; Wherein each port connects a broadband matching network be made up of Coupled Serial stub and is connected; Hybrid coupler is made up of shunt capacitance and high-impedance transmission line; Each port all connects 50 ohmages.
2. according to the adjustable hybrid coupler circuit described in claim 1, it is characterized in that: the electric capacity in this circuit structure can be realized by metal-insulation-metal structure, and inductance is realized by high-impedance transmission line, and wherein electric capacity all adopts tunable capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410473965.2A CN104218939A (en) | 2014-09-17 | 2014-09-17 | Adjustable hybrid coupler circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410473965.2A CN104218939A (en) | 2014-09-17 | 2014-09-17 | Adjustable hybrid coupler circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104218939A true CN104218939A (en) | 2014-12-17 |
Family
ID=52100130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410473965.2A Pending CN104218939A (en) | 2014-09-17 | 2014-09-17 | Adjustable hybrid coupler circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104218939A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682947A (en) * | 2015-03-23 | 2015-06-03 | 徐园园 | Simple adjustable coupler circuit |
| CN104702236A (en) * | 2015-03-20 | 2015-06-10 | 徐园园 | Novel coupler circuit |
| CN104702267A (en) * | 2015-03-21 | 2015-06-10 | 徐园园 | Adjustable hybrid coupler circuit |
| CN105553463A (en) * | 2016-02-01 | 2016-05-04 | 徐园园 | Novel multiport coupler |
| CN106559067A (en) * | 2016-12-09 | 2017-04-05 | 天津洽克印科技发展有限公司 | A kind of coupler circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815804A (en) * | 2005-11-11 | 2006-08-09 | 中国科学院上海微***与信息技术研究所 | Compensation-type spiral micro-band resonance unit and annular coupler formed thereby |
| CN101425148A (en) * | 2007-10-30 | 2009-05-06 | 美国博通公司 | Multi-mode rfid tag architecture |
| US20110267194A1 (en) * | 2010-05-03 | 2011-11-03 | Song Cheol Hong | Compact directional coupler using semiconductor process and mobile rfid reader transceiver system using the same |
| CN103378394A (en) * | 2012-04-17 | 2013-10-30 | 北京大学 | Transformer-based directional coupler |
| CN204046569U (en) * | 2014-09-17 | 2014-12-24 | 王少夫 | A kind of adjustable hybrid coupler circuit |
-
2014
- 2014-09-17 CN CN201410473965.2A patent/CN104218939A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815804A (en) * | 2005-11-11 | 2006-08-09 | 中国科学院上海微***与信息技术研究所 | Compensation-type spiral micro-band resonance unit and annular coupler formed thereby |
| CN101425148A (en) * | 2007-10-30 | 2009-05-06 | 美国博通公司 | Multi-mode rfid tag architecture |
| US20110267194A1 (en) * | 2010-05-03 | 2011-11-03 | Song Cheol Hong | Compact directional coupler using semiconductor process and mobile rfid reader transceiver system using the same |
| CN103378394A (en) * | 2012-04-17 | 2013-10-30 | 北京大学 | Transformer-based directional coupler |
| CN204046569U (en) * | 2014-09-17 | 2014-12-24 | 王少夫 | A kind of adjustable hybrid coupler circuit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702236A (en) * | 2015-03-20 | 2015-06-10 | 徐园园 | Novel coupler circuit |
| CN104702267A (en) * | 2015-03-21 | 2015-06-10 | 徐园园 | Adjustable hybrid coupler circuit |
| CN104682947A (en) * | 2015-03-23 | 2015-06-03 | 徐园园 | Simple adjustable coupler circuit |
| CN105553463A (en) * | 2016-02-01 | 2016-05-04 | 徐园园 | Novel multiport coupler |
| CN106559067A (en) * | 2016-12-09 | 2017-04-05 | 天津洽克印科技发展有限公司 | A kind of coupler circuit |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141217 |
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| WD01 | Invention patent application deemed withdrawn after publication |