CN105515605A - Antenna matching circuit - Google Patents
Antenna matching circuit Download PDFInfo
- Publication number
- CN105515605A CN105515605A CN201610034249.3A CN201610034249A CN105515605A CN 105515605 A CN105515605 A CN 105515605A CN 201610034249 A CN201610034249 A CN 201610034249A CN 105515605 A CN105515605 A CN 105515605A
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- CN
- China
- Prior art keywords
- matching circuit
- antenna matching
- node
- antenna
- circuit
- 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
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Details Of Aerials (AREA)
Abstract
The invention relates to an antenna matching circuit. The antenna matching circuit disclosed by the invention has the advantages that a structure of the antenna matching circuit is realized by adopting a capacitor, an inductor and a resistor; the problem that the system performance is deteriorated because a network is mismatched when most of devices are used is effectively solved; through the structure of the antenna matching circuit, the temperature insensitivity of the resistor is enhanced, the adaptability is good, and the stability is high; meanwhile, the bandwidth of the antenna matching circuit is wider, a matching function can be realized at all kinds of different frequency bands; the antenna matching circuit can be widely applied to a corresponding frequency-band system which is in need of matching.
Description
Technical field
The present invention relates to match circuit, particularly a kind of antenna-matching circuit.
Background technology
Along with the development of the systems such as microwave and millimeter wave communication, radar, the especially development of mobile hand-held wireless communication terminal, 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 device due to net mate performance bad and cause entire system performance to worsen, terminal development speed was once slowed down.In recent years, domestic and international many researchers put forth effort to address this problem, and propose a series of solution, as RLC and active matching circuit, have promoted the development of match circuit to a certain extent.But in current proposed method, shortcoming is more, and the present invention adopts this match circuit, can be implemented in wider bandwidth and carry out effectively mating.
Summary of the invention
The object of the invention is to provide that a kind of structure is simple, the little wider bandwidth of stabilized susceptibility, volume is little, stability is high match circuit.
The technical scheme realizing the object of the invention is: a kind of antenna-matching circuit, and comprise input port (Port1), output port (Port2), electric capacity, inductance and resistance and realize, wherein, input port (Port1) is connected with node 1; One end of electric capacity C1 is connected with node 2 with node 1 other end; ; One end of electric capacity C2 is connected with node 2, and the other end is connected to the ground and connects; One end of resistance R is connected with node 2, and the other end is connected with node 3; ; One end of inductance L is connected with node 3, and the other end is connected to the ground and connects.
Compared with prior art, because the present invention adopts resonant element to realize, the remarkable advantage brought is: (1) is to different harmonic match; (2) broader bandwidth; (3) temperature sensitivity is low; (4) volume is little; (5) stability is high; (7) frequency range is controlled; (8) applicability is extensive, is applicable in the various system strict to performance requirement.
Accompanying drawing explanation
Fig. 1 is a kind of antenna-matching circuit structural representation of the present invention.
Fig. 2 is the Smith circular curve figure of a kind of antenna-matching circuit of the present invention.
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 antenna-matching circuit, chooses the harmonic matching circuit of certain wave band as an example, be described at this.This new antenna match circuit, comprise input port (Port1), output port (Port2), electric capacity, inductance and resistance and realize, wherein, input port (Port1) is connected with node 1; One end of electric capacity C1 is connected with node 2 with node 1 other end; ; One end of electric capacity C2 is connected with node 2, and the other end is connected to the ground and connects; One end of resistance R is connected with node 2, and the other end is connected with node 3; ; One end of inductance L is connected with node 3, and the other end is connected to the ground and connects.
Composition graphs 1, inventive antenna match circuit, its operation principle is summarized as follows: the basic model of match circuit is a filter with harmonic match effect, when the microwave signal of input enters circuit through input port Port1, main circuit is entered by Input matching, signal by output matching, outputs to port Port2, thus realizes matching feature again.
In inventive antenna match circuit
shape main circuit realizes by resistance, inductance and electric capacity, and processing is simple, and good stability, reliability is high.
Composition graphs 2, inventive antenna match circuit Smith circular curve figure, above index all meets the demands, and shows fabulous performance.
Claims (1)
1. an antenna-matching circuit, is characterized in that: comprise input port (Port1), output port (Port2), electric capacity, inductance and resistance and realize, wherein, input port (Port1) is connected with node 1; One end of electric capacity C1 is connected with node 2 with node 1 other end; One end of electric capacity C2 is connected with node 2, and the other end is connected to the ground and connects; One end of resistance R is connected with node 2, and the other end is connected with node 3; ; One end of inductance L is connected with node 3, and the other end is connected to the ground and connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610034249.3A CN105515605A (en) | 2016-01-20 | 2016-01-20 | Antenna matching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610034249.3A CN105515605A (en) | 2016-01-20 | 2016-01-20 | Antenna matching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105515605A true CN105515605A (en) | 2016-04-20 |
Family
ID=55723317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610034249.3A Pending CN105515605A (en) | 2016-01-20 | 2016-01-20 | Antenna matching circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105515605A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004165947A (en) * | 2002-11-13 | 2004-06-10 | Shimada Phys & Chem Ind Co Ltd | Resistance attenuator |
| CN104202009A (en) * | 2014-09-03 | 2014-12-10 | 王少夫 | Distributed matching circuit |
-
2016
- 2016-01-20 CN CN201610034249.3A patent/CN105515605A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004165947A (en) * | 2002-11-13 | 2004-06-10 | Shimada Phys & Chem Ind Co Ltd | Resistance attenuator |
| CN104202009A (en) * | 2014-09-03 | 2014-12-10 | 王少夫 | Distributed matching circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160420 |
|
| WD01 | Invention patent application deemed withdrawn after publication |