CN104202008A - Broadband impedance transformer - Google Patents
Broadband impedance transformer Download PDFInfo
- Publication number
- CN104202008A CN104202008A CN201410441533.3A CN201410441533A CN104202008A CN 104202008 A CN104202008 A CN 104202008A CN 201410441533 A CN201410441533 A CN 201410441533A CN 104202008 A CN104202008 A CN 104202008A
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- CN
- China
- Prior art keywords
- transformer
- impedance transformer
- broadband
- broadband impedance
- parallel resonance
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- 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.)
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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention discloses a broadband impedance transformer. A circuit structure of the impedance transformer is composed of two multiport transformers, two resonators and two complex impedances. The two resonators can produce two transmission zeros of broadband; source impedance and load negative resistance are respectively Z1 and Z2. With the broadband impedance transformer, larger band width can be achieved, so the broadband impedance transformer can be widely used in objects high in signal performance requirement such as 5G (the 5th generation) mobile communication power dividers. By the aid of the broadband impedance transformer, external noises of a pass band can be reduced, and stability of an electronic circuit is improved.
Description
Technical field
The invention belongs to transformer application field, particularly a kind of broadband impedance transformer of realizing, belongs to electronics and the communications field.
Background technology
In field transformer, improving the anti-short ability of transformer is to improve the key measure of operation of power networks reliability, and high broadband impedance transformer is because its short-circuit capacity is compared with being day by day subject to by force the favor of power consumer.In the last few years, carried out a series of research about transformer both at home and abroad.Obtained a lot of achievements in research, be especially used in mobile communication technology, used at broadband impedance transformer and can effectively solve that system linear degree is low, narrow bandwidth, problem that passband external noise is large.But its project organization can only be used in specific frequency range, and bandwidth is less, signal attenuation is larger, causes having to increase the number of power amplifier, makes system bulk larger, versatility is not strong.Simultaneously traditional transformer is due to the problem of its structure, makes temperature sensitivity extremely strongly, and 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, processing is simple, applied widely.
Summary of the invention
The invention provides a kind of have ultra broadband, the broadband impedance transformer that simple in structure, volume is little, stability is high.
The technical scheme that realizes the object of the invention is: a kind of broadband impedance transformer, comprises by two multiport transformer XF1 and XF2, two parallel resonator unit
and two complex impedances
realize.Wherein, impedance
two ends be connected with the two ends of transformer XF1 respectively, 3 ends of transformer XF1 and 4 ends respectively with parallel resonance unit
two ends be connected; Parallel resonance unit
two ends be connected with 4 ends with 5 ends of transformer XF1; 4 ends of transformer XF1 and 5 ends respectively with parallel resonance unit
two ends be connected; Parallel resonance unit
two ends be connected with 3 ends with 4 ends of transformer XF2; Two complex impedances
be 50 ohm.
Compared with prior art, the invention provides a kind of have broadband, the feature that simple in structure, volume is little, stability is high.
Accompanying drawing explanation
Fig. 1 is a kind of broadband impedance transformer circuit of the present invention figure.
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 broadband impedance transformer, comprises by two multiport transformer XF1 and XF2, two parallel resonator unit
and two complex impedances
realize.Wherein, impedance
two ends be connected with the two ends of transformer XF1 respectively, 3 ends of transformer XF1 and 4 ends respectively with parallel resonance unit
two ends be connected; Parallel resonance unit
two ends be connected with 4 ends with 5 ends of transformer XF1; 4 ends of transformer XF1 and 5 ends respectively with parallel resonance unit
two ends be connected; Parallel resonance unit
two ends be connected with 3 ends with 4 ends of transformer XF2; Two complex impedances
be 50 ohm.All elements all adopt lamped element to realize.
The peak signal decay of this kind of transformer is less, has wider bandwidth, and invention design performance is good, can meet the requirement of system.
The present invention is a kind of broadband impedance transformer, and in conjunction with Fig. 1, its operation principle is summarized as follows: comprise by two multiport transformer XF1 and XF2, two parallel resonator unit
and two complex impedances
realize.All elements all adopt lamped element to realize, and utilize the varying-voltage principle of transformer, couple a signal to output port, thereby have realized impedance transformation effect, particularly in electric power and communication system, have important application.
Claims (2)
1. a broadband impedance transformer, is characterized in that: comprise by two multiport transformer XF1 and XF2, two parallel resonator unit
and two complex impedances
realize; Wherein, impedance
two ends be connected with the two ends of transformer XF1 respectively, 3 ends of transformer XF1 and 4 ends respectively with parallel resonance unit
two ends be connected; Parallel resonance unit
two ends be connected with 4 ends with 5 ends of transformer XF1; 4 ends of transformer XF1 and 5 ends respectively with parallel resonance unit
two ends be connected; Parallel resonance unit
two ends be connected with 3 ends with 4 ends of transformer XF2; Two complex impedances
be 50 ohm.
2. according to the broadband impedance transformer described in claim 1, it is characterized in that: two parallel resonator unit
the resonance frequency producing
be respectively two transmission zeros of respective bandwidth, all components and parts are all realized by lamped element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410441533.3A CN104202008A (en) | 2014-09-02 | 2014-09-02 | Broadband impedance transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410441533.3A CN104202008A (en) | 2014-09-02 | 2014-09-02 | Broadband impedance transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104202008A true CN104202008A (en) | 2014-12-10 |
Family
ID=52087250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410441533.3A Pending CN104202008A (en) | 2014-09-02 | 2014-09-02 | Broadband impedance transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104202008A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736906A (en) * | 2017-04-13 | 2018-11-02 | 意法半导体有限公司 | Transmission line with the device for limiting the loss for passing through impedance mismatching |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5015972A (en) * | 1989-08-17 | 1991-05-14 | Motorola, Inc. | Broadband RF transformer |
| US20080157896A1 (en) * | 2006-12-29 | 2008-07-03 | M/A-Com, Inc. | Ultra Broadband 10-W CW Integrated Limiter |
| CN103199821A (en) * | 2013-01-30 | 2013-07-10 | 王少夫 | Achieving method of ultra-wideband dual tuned transformer |
| CN204013432U (en) * | 2014-09-02 | 2014-12-10 | 王少夫 | A kind of broadband impedance transformer |
-
2014
- 2014-09-02 CN CN201410441533.3A patent/CN104202008A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5015972A (en) * | 1989-08-17 | 1991-05-14 | Motorola, Inc. | Broadband RF transformer |
| US20080157896A1 (en) * | 2006-12-29 | 2008-07-03 | M/A-Com, Inc. | Ultra Broadband 10-W CW Integrated Limiter |
| CN103199821A (en) * | 2013-01-30 | 2013-07-10 | 王少夫 | Achieving method of ultra-wideband dual tuned transformer |
| CN204013432U (en) * | 2014-09-02 | 2014-12-10 | 王少夫 | A kind of broadband impedance transformer |
Non-Patent Citations (1)
| Title |
|---|
| DONG CHEN等: "Dual-Resonant-Mode(DRM) Impedance Transformer and Its Application to Wideband 3dB Power Divider", 《IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736906A (en) * | 2017-04-13 | 2018-11-02 | 意法半导体有限公司 | Transmission line with the device for limiting the loss for passing through impedance mismatching |
| CN108736906B (en) * | 2017-04-13 | 2020-06-16 | 意法半导体有限公司 | Transmission line with means for limiting losses through impedance mismatch |
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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: 20141210 |
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| WD01 | Invention patent application deemed withdrawn after publication |