CN104202009A - Distributed matching circuit - Google Patents
Distributed matching circuit Download PDFInfo
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- CN104202009A CN104202009A CN201410443705.0A CN201410443705A CN104202009A CN 104202009 A CN104202009 A CN 104202009A CN 201410443705 A CN201410443705 A CN 201410443705A CN 104202009 A CN104202009 A CN 104202009A
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- circuit
- distributed
- microstrip line
- matching circuit
- harmonic
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Abstract
The invention relates to a distributed matching circuit which is structurally implemented by a microstrip line. The distributed matching circuit effectively solves the problem that system performances are degraded due to network mismatching when most microwave devices are used. The temperature insensitivity of the circuit structure to resistance is enhanced, adaptability is fine, and stability is high. Besides, the bandwidth of a distributed harmonic matching circuit is wider than that of an active or passive circuit with RLC (radio link control), harmonic matching functions can be achieved at various different frequency bands, and the distributed matching circuit can be widely applied to corresponding frequency band systems needing harmonic matching.
Description
Technical field
The present invention relates to match circuit, particularly a kind of distributed harmonic wave match circuit.
Background technology
Along with the development of development, especially the ambulatory handheld formula wireless communication terminal of the systems such as microwave and millimeter wave communication, radar, satellite mobile communication terminal, military and civilian multimode multiplex communication terminal, harsh all the more to the requirement of device in system.Wherein, a lot of microwave devices cause entire system performance to worsen because net mate performance is bad, terminal development speed was once slowed down.In recent years, domestic and international many researchers put forth effort to address this problem, and have proposed a series of solution, as RLC and active matching circuit, have promoted to a certain extent the development of match circuit.But in current proposed method, shortcoming is more, and the present invention adopts this match circuit, can realizes the harmonic waves such as first-harmonic, first harmonic, second harmonic are carried out to effective coupling etc.
Summary of the invention
The object of the invention is to provide a kind of and utilizes distributed planar structure, has the function that different harmonic waves are matched; The little wider bandwidth of simple in structure, stabilized susceptibility, the coupling microwave circuit that volume is little, stability is high.
The technical scheme that realizes the object of the invention is: a kind of distributed harmonic wave match circuit, comprises that input port (Port1), output port (Port2), input port coupling microstrip line, output port coupling microstrip line, temporary location adopt
shape circuit, connects by coupling microstrip line; Input port (Port1) and output port (Port2) all connect 50 ohmages.Temporary location adopts
shape circuit, realizes by microstrip line, wherein
shape transmission line one end is open circuit or short circuit form.
Compared with prior art, because the present invention adopts distributed planar microstrip toe-in, form, the remarkable advantage bringing is: (1) is to different harmonic match; (2) bandwidth is adjustable; (3) temperature sensitivity is low; (4) volume is little; (5) stability is high; (7) frequency range is controlled; (8) applicability is extensive, applicable to various in the strict system of performance requirement.
Accompanying drawing explanation
Fig. 1 is a kind of distributed harmonic wave match circuit of the present invention structural representation.
Fig. 2 is a kind of distributed harmonic wave match circuit of the present invention
parameter characteristic curve chart (a).
parameter characteristic (b).
parameter characteristic.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
In conjunction with Fig. 1, the present invention is a kind of distributed harmonic wave match circuit, and the harmonic match circuit of choosing certain wave band at this as an example, is described.This new distribution type harmonic match circuit, comprises that input port (Port1), output port (Port2), input port coupling microstrip line, output port coupling microstrip line, temporary location adopt
shape circuit, connects by coupling microstrip line; Input port (Port1) and output port (Port2) all connect 50 ohmages.Temporary location adopts
shape circuit, realizes by microstrip line, wherein
shape transmission line one end is open circuit or short circuit form.
In conjunction with Fig. 2, choose n=2 two joints
the result of l network is as explanation, and now the signal attenuation maximum of circuit is only 25dB, and this result is far smaller than RLC circuit and active matching circuit.
In conjunction with Fig. 1, the distributed match circuit of the present invention, its operation principle is summarized as follows: the basic model of distributed harmonic wave match circuit is a band stop filter with harmonic match effect, when the microwave signal process input port Port1 of input enters circuit, by Input matching, enter main circuit, the progression n of main circuit can harmonic match size as required set, and this embodies one of advantage of the present invention.
the microstrip line size comprising in shape circuit, sets according to needed frequency range, is compared to RLC match circuit and active matching circuit, and microstrip line is more easily processed and changed its size, thereby more easily sets as requested its frequency range.When passing through n level
after shape circuit, signal by output matching, outputs to port Port2, thereby realizes adjustable harmonic match function again.
In the distributed match circuit of the present invention
shape main circuit is realized by microstrip line, and processing is simple, stability
Good, reliability is high.Because microstrip line arrangement can adopt different forms, realize, thereby volume is significantly reduced.
In conjunction with Fig. 2, distributed harmonic wave match circuit of the present invention, this circuit structure is chosen two
shape circuit unit, centre frequency is chosen at 2.1GHz, and signal attenuation maximum is only 25dB, and above index is all better than like product, shows fabulous performance.
Claims (4)
1. a distributed match circuit, is characterized in that: comprise that input port (Port1), output port (Port2), input port coupling microstrip line, output port coupling microstrip line, temporary location adopt
shape circuit, connects by coupling microstrip line; Input port (Port1) and output port (Port2) all connect 50 ohmages.
2. according to the distributed match circuit described in claim 1, it is characterized in that: temporary location adopts
shape circuit, realizes by microstrip line, wherein
shape transmission line one end is open circuit or short circuit form.
3. according to the distributed match circuit described in claim 1, it is characterized in that: input port (Port1), output port (Port2), input port coupling microstrip line, output port coupling microstrip line, temporary location are planar structure, adopt the microstrip line of distributed constant to realize.
4. according to the distributed match circuit described in claim 1 or 3, it is characterized in that: circuit structure can be realized harmonic match in 10MHz-10GHz frequency range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410443705.0A CN104202009A (en) | 2014-09-03 | 2014-09-03 | Distributed matching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410443705.0A CN104202009A (en) | 2014-09-03 | 2014-09-03 | Distributed matching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104202009A true CN104202009A (en) | 2014-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410443705.0A Pending CN104202009A (en) | 2014-09-03 | 2014-09-03 | Distributed matching circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN104202009A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104715911A (en) * | 2015-04-03 | 2015-06-17 | 徐园园 | Micro-strip impedance transformer |
| CN104901636A (en) * | 2015-06-14 | 2015-09-09 | 徐园园 | Matching circuit of inverse-F type power amplifier |
| CN105515605A (en) * | 2016-01-20 | 2016-04-20 | 谷林超 | Antenna matching circuit |
| CN106656093A (en) * | 2016-10-24 | 2017-05-10 | 汪茂稳 | Design method and circuit of dual-band nonuniform transmission line impedance transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281040A (en) * | 2013-06-06 | 2013-09-04 | 电子科技大学 | On-chip power amplifier synthesized based on power of eight branches of fully symmetrical transformers |
| CN103427780A (en) * | 2013-08-31 | 2013-12-04 | 西安电子科技大学 | Semi-distributed passive variable attenuator |
| CN103684332A (en) * | 2013-12-30 | 2014-03-26 | 南京理工大学 | Distributed type adjustable negative group time-delay circuit |
| WO2014068772A1 (en) * | 2012-11-02 | 2014-05-08 | カナレ電気株式会社 | Active connector having loop-through function |
| CN203690467U (en) * | 2014-02-26 | 2014-07-02 | 武汉虹信通信技术有限责任公司 | Micro-strip power divider of integrated design |
-
2014
- 2014-09-03 CN CN201410443705.0A patent/CN104202009A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014068772A1 (en) * | 2012-11-02 | 2014-05-08 | カナレ電気株式会社 | Active connector having loop-through function |
| CN103281040A (en) * | 2013-06-06 | 2013-09-04 | 电子科技大学 | On-chip power amplifier synthesized based on power of eight branches of fully symmetrical transformers |
| CN103427780A (en) * | 2013-08-31 | 2013-12-04 | 西安电子科技大学 | Semi-distributed passive variable attenuator |
| CN103684332A (en) * | 2013-12-30 | 2014-03-26 | 南京理工大学 | Distributed type adjustable negative group time-delay circuit |
| CN203690467U (en) * | 2014-02-26 | 2014-07-02 | 武汉虹信通信技术有限责任公司 | Micro-strip power divider of integrated design |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104715911A (en) * | 2015-04-03 | 2015-06-17 | 徐园园 | Micro-strip impedance transformer |
| CN104901636A (en) * | 2015-06-14 | 2015-09-09 | 徐园园 | Matching circuit of inverse-F type power amplifier |
| CN105515605A (en) * | 2016-01-20 | 2016-04-20 | 谷林超 | Antenna matching circuit |
| CN106656093A (en) * | 2016-10-24 | 2017-05-10 | 汪茂稳 | Design method and circuit of dual-band nonuniform transmission line impedance transformer |
| WO2018076519A1 (en) * | 2016-10-24 | 2018-05-03 | 汪茂稳 | Design method and circuit for dual-band non-uniform transmission line impedance converter |
| CN106656093B (en) * | 2016-10-24 | 2020-11-06 | 汪茂稳 | Design method and circuit of dual-band non-uniform transmission line impedance converter |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141210 |