CN104333339A - Adjustable transformer - Google Patents
Adjustable transformer Download PDFInfo
- Publication number
- CN104333339A CN104333339A CN201410622177.5A CN201410622177A CN104333339A CN 104333339 A CN104333339 A CN 104333339A CN 201410622177 A CN201410622177 A CN 201410622177A CN 104333339 A CN104333339 A CN 104333339A
- Authority
- CN
- China
- Prior art keywords
- port
- transformer
- adjustable transformer
- inductance
- coupling
- 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
Links
Landscapes
- Filters And Equalizers (AREA)
Abstract
The invention discloses an adjustable transformer. A circuit structure is composed of a port 1 (Port 1), a port 2 (Port 2), resistors, capacitors and inductors, wherein coupling is existed between two inductors, two circuit units are connected through a coupling capacitor, and the central frequency and out-of-band transmission zero point of the transformer can be regulated through changing values of a resonant capacitor and a coupling capacitor. The adjustable transformer can realize wide band width and can be broadly used for 5G mobile communication power dividers and the like which are strict in signal performance; the adjustable transformer is capable of reducing the out-of-band noise and improving the electronic circuit stability.
Description
Technical field
The invention belongs to transformer application field, particularly a kind of adjustable transformer, belong to electronics and the communications field.
Background technology
In field transformer, improve transformer and resist short ability to be improve the key measure of operation of power networks reliability, high adjustable transformer is subject to the favor of power consumer more by force and day by day because of its short-circuit capacity.In the last few years, a series of research about transformer 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 that adjustable transformer effectively can solve that system linear degree is low, narrow bandwidth, problem that passband external noise is large.But its project organization can only use in specific frequency range, and bandwidth is less, signal attenuation is comparatively large, causes the number having to increase power amplifier, and make system bulk comparatively large, versatility is not strong.Simultaneously traditional transformer is due to the problem of its 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, processing is simple, applied widely.
Summary of the invention
The invention provides a kind of there is ultra broadband, the transformer of structure is simple, volume is little, stability is high tunable center frequency and the outer transmission zero of band.
The technical scheme realizing the object of the invention is: a kind of adjustable transformer, comprises by by port one (Port1), port 2 (Port2), two parallel resonator unit
and two resistance
realize.Wherein, first module is by resistance
, electric capacity
with inductance
formation in parallel; Second unit is by resistance
, electric capacity
with inductance
formation in parallel; Coupling (coupling inductance is M) is there is between two inductance; Coupling capacitance is passed through between first circuit unit and second circuit unit
be connected, two port internal resistances are 50 ohm.Described adjustable transformer, is all realized by lamped element.Two parallel resonator unit
the resonance frequency produced
equal, its resistance, inductance and capacitance are also equal.
Compared with prior art, the invention provides a kind of there is regulable center frequency, the outer transmission zero of band is adjustable, structure is simple, volume is little, stability is high feature.
Accompanying drawing explanation
Fig. 1 is a kind of adjustable transformer circuit diagram of the present invention.
Fig. 2 is a kind of adjustable transformer S parameter of the present invention performance plot.
Fig. 3 is a kind of adjustable transformer phase characteristic figure of the present invention.
Fig. 4 is a kind of adjustable transformer coupling capacitance of the present invention
when getting different parameters, corresponding S parameter performance plot.
Fig. 5 is a kind of adjustable transformer coupling capacitance of the present invention
when getting different parameters, corresponding S parameter performance plot.
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 transformer, comprises by by port one (Port1), port 2 (Port2), two parallel resonator unit
and two resistance
realize.Wherein, first module is by resistance
, electric capacity
with inductance
formation in parallel; Second unit is by resistance
, electric capacity
with inductance
formation in parallel; Coupling (coupling inductance is M) is there is between two inductance; Coupling capacitance is passed through between first circuit unit and second circuit unit
be connected, two port internal resistances are 50 ohm.Described adjustable transformer, is all realized by lamped element.Two parallel resonator unit
the resonance frequency produced
equal, its resistance, inductance and capacitance are also equal.
Composition graphs 2 and Fig. 3 can obviously find out, this transformer has wider bandwidth and linear phase characteristic.Composition graphs 4 can be found out, by changing coupling capacitance
value, the outer transmission zero of band of transformer can be adjusted; Composition graphs 5 can be found out, by changing resonant capacitance
value, the centre frequency of transformer can be adjusted; The peak signal decay of this kind of transformer is less in addition, and have wider bandwidth, invention design performance is good, can meet the requirement of system.
The present invention is a kind of adjustable transformer, composition graphs 1, its operation principle is summarized as follows: comprise by two ports and two circuit units, two circuit units are carried out coupling realization by coupling capacitance and couples a signal to output port, by above-mentioned explanation, show the function that this transformer has centre frequency and is with outer transmission zero adjustable.Important application will be had in electric power and communication system.
Claims (2)
1. an adjustable transformer, is characterized in that: comprise by by port one (Port1), port 2 (Port2), two parallel resonator unit
and two resistance
realize.Wherein, first module is by resistance
, electric capacity
with inductance
formation in parallel; Second unit is by resistance
, electric capacity
with inductance
formation in parallel; Coupling (coupling inductance is M) is there is between two inductance; Coupling capacitance is passed through between first circuit unit and second circuit unit
be connected, two port internal resistances are 50 ohm.
2. according to the adjustable transformer described in claim 1, it is characterized in that: two parallel resonator unit
the resonance frequency produced
equal, its resistance, inductance and capacitance are also equal respectively, and all elements realize by lamped element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410622177.5A CN104333339A (en) | 2014-11-07 | 2014-11-07 | Adjustable transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410622177.5A CN104333339A (en) | 2014-11-07 | 2014-11-07 | Adjustable transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104333339A true CN104333339A (en) | 2015-02-04 |
Family
ID=52408007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410622177.5A Pending CN104333339A (en) | 2014-11-07 | 2014-11-07 | Adjustable transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104333339A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024685A (en) * | 2015-08-12 | 2015-11-04 | 王帅 | Novel coupler |
| CN110739135A (en) * | 2019-10-29 | 2020-01-31 | 电子科技大学 | transformer based on adjustable inductance |
| WO2020125341A1 (en) * | 2018-12-18 | 2020-06-25 | 天津大学 | Filter unit having coupling inductor, filter, and electronic device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2541768A1 (en) * | 2011-06-30 | 2013-01-02 | ABB Research Ltd. | Bypass for bypassing a high frequency power line communication signal |
| CN104104348A (en) * | 2014-08-01 | 2014-10-15 | 王少夫 | Adjustable printing plate transformer |
| CN204206126U (en) * | 2014-11-07 | 2015-03-11 | 王少夫 | A kind of adjustable transformer |
-
2014
- 2014-11-07 CN CN201410622177.5A patent/CN104333339A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2541768A1 (en) * | 2011-06-30 | 2013-01-02 | ABB Research Ltd. | Bypass for bypassing a high frequency power line communication signal |
| CN104104348A (en) * | 2014-08-01 | 2014-10-15 | 王少夫 | Adjustable printing plate transformer |
| CN204206126U (en) * | 2014-11-07 | 2015-03-11 | 王少夫 | A kind of adjustable transformer |
Non-Patent Citations (1)
| Title |
|---|
| 汪海英: ""1553B总线用单/双耦合器"", 《光纤与电缆及其应用技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024685A (en) * | 2015-08-12 | 2015-11-04 | 王帅 | Novel coupler |
| WO2020125341A1 (en) * | 2018-12-18 | 2020-06-25 | 天津大学 | Filter unit having coupling inductor, filter, and electronic device |
| CN110739135A (en) * | 2019-10-29 | 2020-01-31 | 电子科技大学 | transformer based on adjustable inductance |
| CN110739135B (en) * | 2019-10-29 | 2021-02-02 | 电子科技大学 | Transformer based on adjustable inductance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104104349A (en) | Wireless filtering circuit | |
| CN103986435B (en) | Miniaturized wide-stop-band restraint LTCC low-pass filter | |
| CN104333339A (en) | Adjustable transformer | |
| CN204206126U (en) | A kind of adjustable transformer | |
| CN104218939A (en) | Adjustable hybrid coupler circuit | |
| CN104202006A (en) | Adjustable simple low-pass filtering circuit | |
| CN204206139U (en) | A kind of negative group delay circuitry | |
| CN203984365U (en) | A kind of adjustable printed panel transformer | |
| EP2773041B1 (en) | A two stage source-follower based filter | |
| CN104143971A (en) | Negative group delay circuit | |
| CN104852700A (en) | Zero-adjustment group delay circuit | |
| CN204465505U (en) | A kind of adjustable hybrid coupler circuit | |
| CN204013432U (en) | A kind of broadband impedance transformer | |
| CN204481773U (en) | A kind of low-pass filter circuit | |
| CN204681323U (en) | A kind of easy tunable band-pass filter circuit | |
| CN104104348A (en) | Adjustable printing plate transformer | |
| CN104659447B (en) | Based on terminal short circuit from the narrowband differential bandpass filter of coupling ring shape resonator | |
| CN207039550U (en) | A kind of anti-interference low bit error wave filter | |
| CN204681324U (en) | A kind of duplexer circuit | |
| CN104702237A (en) | Filter circuit based on resonator | |
| CN104202008A (en) | Broadband impedance transformer | |
| CN204119177U (en) | A kind of wireless filter circuit | |
| CN104467727A (en) | Adjustable absorption type filter | |
| CN104701594A (en) | Circulator device | |
| CN105720827A (en) | Adjustable printing plate transformer |
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: 20150204 |
|
| WD01 | Invention patent application deemed withdrawn after publication |