CN110034749A - A kind of amount of phase shift distinguishes controllable big frequency than double frequency phase shifter - Google Patents
A kind of amount of phase shift distinguishes controllable big frequency than double frequency phase shifter Download PDFInfo
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- CN110034749A CN110034749A CN201910212741.9A CN201910212741A CN110034749A CN 110034749 A CN110034749 A CN 110034749A CN 201910212741 A CN201910212741 A CN 201910212741A CN 110034749 A CN110034749 A CN 110034749A
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- double frequency
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K2005/00286—Phase shifter, i.e. the delay between the output and input pulse is dependent on the frequency, and such that a phase difference is obtained independent of the frequency
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- Nonlinear Science (AREA)
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
The invention discloses a kind of amount of phase shift to distinguish controllable big frequency than double frequency phase shifter, is related to double frequency phase shifter, belongs to the technical field of essential electronic element.The double frequency phase shifter is combined by the symmetrical stepped impedance transmission line section of " mouth " font, two identical double frequency susceptance units controlled for amount of phase shift and two switches for Phase-switching form.Double frequency susceptance unit realized by terminal short circuit or open stub, and stub can be stepped impedance stub made of two sections or more of transmission line cascade.The phase shifter is realized using microstrip line, may be implemented that amount of phase shift is respectively set on two frequency bins, and has many advantages, such as that loss is low, processing cost is low, is easily integrated.
Description
Technical field
The invention discloses a kind of amount of phase shift to distinguish controllable big frequency than double frequency phase shifter, is related to double frequency phase shifter, belongs to
In the technical field of essential electronic element.
Background technique
Phase shifter is the device of adjustable electromagnetic wave phase, logical for the regulation of Phased Array Radar Antenna phase, radio frequency
The control of the modulation and measuring system phase of believing signal phase has very important effect.The sixties in last century, with phased
The high speed development of battle array radar, the importance of key component --- phase shifter is also increasingly prominent, later, since phase shifter is communicating
Also there is important application in the fields such as network, missile attitude control, instrument design, and educational circles is lasting to its research.
In today of communication technology high speed development, the trend toward miniaturization of communication equipment requires communication equipment to work at the same time two
A frequency point is even more than on frequency point and then space cost is reduced, and antenna technology is developed so far, and dual-frequency array antenna and double frequency can
The it is proposed of the dual-band antennas such as reconfigurable antenna also proposed exact requirement to the double frequency performance of phase shifter.Currently, not yet can
Realize that amount of phase shift distinguishes controllable double frequency phase shifter, the present invention is directed to propose a kind of controlled at two frequency bins by a voltage
Amount of phase shift.
Summary of the invention
Goal of the invention of the invention is the deficiency for above-mentioned background technique, provide a kind of amount of phase shift distinguish it is controllable big
For frequency than double frequency phase shifter, it is controllable to realize amount of phase shift of the double frequency phase shifter on two frequency bins, solves and to control how respectively
Double frequency phase shifter is the amount of phase shift on two frequency bins the technical issues of.
The present invention adopts the following technical scheme that for achieving the above object
A kind of amount of phase shift distinguishes controllable big frequency than double frequency phase shifter, comprising:
It is combined by four sections of symmetrical stepped impedance transmission lines " mouth " font transmission line section formed that joins end to end, opposite two sections
Symmetrically stepped impedance transmission line electrical length having the same and characteristic impedance, it is right with one section in " mouth " the font transmission line combination
The both ends of stepped impedance transmission line are referred to as input terminal and output end,
Two double frequency susceptance units for amount of phase shift control connect the symmetrical rank between input terminal and output end respectively
Terraced impedance transmission lines have the both ends of the symmetrical stepped impedance transmission line of same electrical length and same characteristic features impedance, according to port spy
Sign impedance and the amount of phase shift on two frequency bins determine susceptance value of the double frequency susceptance unit at two frequency bins, and,
Two are used for the switch of Phase-switching, connect the symmetrical stepped impedance transmission between input terminal and output end respectively
Line has the both ends of the symmetrical stepped impedance transmission line of same electrical length and same characteristic features impedance.
As amount of phase shift, than the scheme that advanced optimizes of double frequency phase shifter, symmetrical stepped impedance passed for controllable big frequency respectively
Defeated line is cascaded by three sections of uniform transmission lines, positioned at two sections of transmission lines electrical length having the same of end and characteristic impedance.
As amount of phase shift, than the scheme that advanced optimizes of double frequency phase shifter, double frequency susceptance unit is for controllable big frequency respectively
Open-end or the stub of short circuit, stepped impedance stub made of the transmission line cascade that stub is two sections or more.
As amount of phase shift, controllable big frequency advanced optimizes scheme than double frequency phase shifter respectively, " mouth " font transmission line
Each section of symmetrical stepped impedance transmission line in combination is the transmission line of bending or folding.
As amount of phase shift, than the scheme that advanced optimizes of double frequency phase shifter, double frequency susceptance unit exists for controllable big frequency respectively
Susceptance value at two frequency bins are as follows:Bm(f1)、Bm(f2) respectively
It is double frequency susceptance unit in f1、f2The susceptance value at place, f1、f2For two working frequency points of double frequency phase shifter, Z0For port diagnostic resistance
It is anti-,It is double frequency phase shifter in f1、f2On amount of phase shift.
Further prioritization scheme of the controllable big frequency than double frequency phase shifter is distinguished as amount of phase shift, and stub is bending
Or the transmission line folded.
The present invention by adopting the above technical scheme, has the advantages that
(1) impedance parameter that " mouth " font transmission line section combines in double frequency phase shifter disclosed in the present application is not with phase shifter frequency
Point switching and change, according only on frequency point amount of phase shift and port diagnostic impedance adjust double frequency susceptance unit impedance parameter
Any amount of phase shift on different frequent points can be realized, any phase shift at two frequency bins is realized by a voltage, is particularly suitable for
Big frequency is controlled than the amount of phase shift of double frequency phase shifter.
(2) phase shifter circuit is realized using microstrip line and the switch for switching phase is realized using PIN pipe, reduce damage
Consumption and processing cost, are easily integrated.
Detailed description of the invention
Fig. 1 is that amount of phase shift distinguishes structure chart of the controllable big frequency than double frequency phase shifter.
Fig. 2 is the simulation comparison figure of 90 ° of phase shift of each double frequency phase shifter phase-shift curve at 0.9GHz.
Fig. 3 is the structure chart of short-circuit second order stepped impedance stub.
Fig. 4 is the simulation comparison figure of 90 ° of phase shift of each double frequency phase shifter phase-shift curve at 4.68GHz.
Specific embodiment
The technical solution of invention is described in detail with reference to the accompanying drawing.
Double frequency phase shifter disclosed by the invention as shown in Figure 1, combined by the symmetrical stepped impedance transmission line section of " mouth " font, two
A identical double frequency susceptance unit and two switch compositions for Phase-switching for amount of phase shift control." mouth " font pair
Claiming the combination of stepped impedance transmission line section includes four sections of end to end symmetrical stepped impedance transmission lines, and two opposite but non-conterminous
Symmetrically stepped impedance transmission line electrical length having the same and characteristic impedance.Each symmetrical stepped impedance transmission line is uniform by three sections
Transmission line cascades, and two sections of transmission line electrical length of left and right ends are identical with characteristic impedance.Double frequency susceptance unit can be by
Open-end or short circuit stub realize, and stub can be two sections or more transmission line cascade made of ladder
Impedance stub.Each section of symmetrical stepped impedance transmission line or stub can be straight transmission line, be also possible to curved to a certain degree
Transmission line that is bent or folding.
Take port diagnostic impedance Z0For 50 Ω of classical value.If its working frequency points are respectively f1、f2, frequency ratio m=f2/f1,
Amount of phase shift is respectivelyImpedance ratio r1=Z1/Z2, r2=Z3/Z4, electrical length ratio k1=θ2/θ1, k2=θ4/θ3, wherein
k1、k2It can free value.According to working frequency points f1、f2Design the phase when phase and opening when closing.
Then the design parameter in Fig. 1 can be solved by following formula:
Wherein, Z1、θ1For the symmetrical stepped impedance of one group of Three-section cascaded formula transmit two sections of transmission lines of thread end impedance magnitude and
Impedance angle, Z2、θ2Impedance magnitude and impedance for one group of Three-section cascaded formula symmetrical stepped impedance transmission line middle position transmission line
Phase angle, Z3、θ3The impedance magnitude and impedance phase of two sections of transmission lines of thread end are transmitted for the symmetrical stepped impedance of another group of Three-section cascaded formula
Angle, Z4、θ4For the impedance magnitude and impedance phase of another group of Three-section cascaded formula symmetrical stepped impedance transmission line middle position transmission line
Angle, θ1、θ3Meet transcendental equation:
The equation needs to be solved with numerical method or optimization.
In addition, r1、r2It can be solved by following equation:
The susceptance value of double frequency susceptance unit is respectively as follows: at two frequency bins
It can be realized with the uniform stub or open circuit of open circuit or short circuit or the stepped impedance stub of short circuit, cutting back
The parameter Z of linem、θmIt can be solved with numerical method or optimization.
Design example 1:
f1=0.9GHz, f2=4.68GHz, frequency ratio m=5.2, in f1On,In f2OnRespectively 0 °,
30 °, 60 °, 90 °, 150 °, 180 °, take k1=k2=1.
For different amount of phase shift, a part of circuit parameter values of double frequency phase shifter be it is constant, as shown in table 1.
The common parameter value of 1 double frequency phase shifter of table
| Z1 | θ1 | Z2 | θ2 | Z3 | θ3 | Z4 | θ4 |
| 45.2Ω | 29° | 27.2Ω | 29° | 63.9Ω | 29° | 39.1Ω | 29° |
Circuit parameter values of the double frequency susceptance unit of double frequency phase shifter in different amount of phase shift are as shown in table 2.
The circuit parameter values of 2 double frequency susceptance unit of table
The phase-shift curve simulation comparison figure of each double frequency phase shifter is as shown in Figure 2.
Design example 2:
f1=0.9GHz, f2=4.68GHz, frequency ratio m=5.2, in f1On,Respectively 0 °, 30 °, 60 °, 90 °,
150 °, 180 °, in f2OnTake k1=k2=1.
The double frequency phase shifter of various difference amount of phase shift, their common circuit parameters are also as shown in table 1, double frequency phase shifter
Value of the circuit parameter of double frequency susceptance unit in different amount of phase shift is as shown in table 3.
The circuit parameter values of 3 double frequency susceptance unit of table
Wherein, whenWhen, double frequency susceptance needs the second order stepped impedance stub of short circuit to realize, ties
Structure is as shown in Figure 3.Wherein Z1=55.17 Ω, Z2=27.59 Ω, θ=54.74 °.
The phase-shift curve simulation comparison figure for designing each double frequency phase shifter in example 2 is as shown in Figure 4.
By embodiment 1 and embodiment 2 it is found that " mouth " font transmission line section combines in double frequency phase shifter disclosed in the present application
Impedance parameter does not change with the switching of phase shifter frequency point, according only to the amount of phase shift and port diagnostic impedance adjusting pair on frequency point
Any amount of phase shift on different frequent points can be realized in the impedance parameter of frequency susceptance unit, is realized at two frequency bins by a voltage
Any phase shift, be particularly suitable for big frequency than double frequency phase shifter amount of phase shift control, using microstrip line realize phase shifter circuit simultaneously
Switch for switching phase is realized using PIN pipe, loss and processing cost is reduced, is easily integrated.
Claims (6)
1. a kind of amount of phase shift distinguishes controllable big frequency than double frequency phase shifter characterized by comprising
It is combined by four sections of symmetrical stepped impedance transmission lines " mouth " font transmission line section formed that joins end to end, opposite two sections symmetrical
Stepped impedance transmission line electrical length having the same and characteristic impedance, with one section of symmetrical rank in " mouth " the font transmission line combination
The both ends of terraced impedance transmission lines be input terminal and output end,
Two double frequency susceptance units for amount of phase shift control connect the symmetrical ladder resistance between input terminal and output end respectively
Anti- transmission line has the both ends of the symmetrical stepped impedance transmission line of same electrical length and same characteristic features impedance, is hindered according to port diagnostic
The anti-and amount of phase shift on two frequency bins determines susceptance value of the double frequency susceptance unit at two frequency bins, and,
Two are used for the switch of Phase-switching, connect the symmetrical stepped impedance transmission line tool between input terminal and output end respectively
There are the both ends of the symmetrical stepped impedance transmission line of same electrical length and same characteristic features impedance.
2. a kind of amount of phase shift distinguishes controllable big frequency than double frequency phase shifter according to claim 1, which is characterized in that described
Symmetrical stepped impedance transmission line is cascaded by three sections of uniform transmission lines, and the electricity having the same of two sections of transmission lines positioned at end is long
Degree and characteristic impedance.
3. a kind of amount of phase shift distinguishes controllable big frequency than double frequency phase shifter according to claim 1, which is characterized in that described
Double frequency susceptance unit is the stub of open-end or short circuit, rank made of the transmission line cascade that stub is two sections or more
Terraced impedance stub.
4. a kind of amount of phase shift distinguishes controllable big frequency than double frequency phase shifter according to claim 1, which is characterized in that described
Each section of symmetrical stepped impedance transmission line in " mouth " font transmission line combination is the transmission line of bending or folding.
5. a kind of amount of phase shift distinguishes controllable big frequency than double frequency phase shifter according to claim 1, which is characterized in that double frequency
Susceptance value of the susceptance unit at two frequency bins are as follows: Bm(f1)、Bm
(f2) it is respectively double frequency susceptance unit in f1、f2The susceptance value at place, f1、f2For two working frequency points of double frequency phase shifter, Z0For end
Mouth characteristic impedance,It is double frequency phase shifter in f1、f2On amount of phase shift.
6. a kind of amount of phase shift distinguishes controllable big frequency than double frequency phase shifter according to claim 3, which is characterized in that described
Stub is the transmission line of bending or folding.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09232802A (en) * | 1996-02-21 | 1997-09-05 | Nec Corp | Hybrid reflection phase device |
| CN101110489A (en) * | 2007-08-14 | 2008-01-23 | 锐迪科无线通信技术（上海）有限公司 | Variable radio frequency signal phase-shifting circuit and its phase-shifting method |
| CN101194420A (en) * | 2005-06-10 | 2008-06-04 | 艾利森电话股份有限公司 | Phase shifter |
| CN103474724A (en) * | 2013-09-24 | 2013-12-25 | 上海无线电设备研究所 | High-performance adjustable double-frequency phase shifter and double-frequency passing band adjustment method thereof |
| CN203721852U (en) * | 2013-09-24 | 2014-07-16 | 上海无线电设备研究所 | High performance adjustable double-frequency phase shifter |
| CN105337012A (en) * | 2015-09-30 | 2016-02-17 | 南京航空航天大学 | Double-frequency coupler based on step-type impedance transformer |
| CN107615678A (en) * | 2015-05-12 | 2018-01-19 | 华为技术有限公司 | A kind of double frequency phased array |
-
2019
- 2019-03-20 CN CN201910212741.9A patent/CN110034749B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09232802A (en) * | 1996-02-21 | 1997-09-05 | Nec Corp | Hybrid reflection phase device |
| CN101194420A (en) * | 2005-06-10 | 2008-06-04 | 艾利森电话股份有限公司 | Phase shifter |
| CN101110489A (en) * | 2007-08-14 | 2008-01-23 | 锐迪科无线通信技术（上海）有限公司 | Variable radio frequency signal phase-shifting circuit and its phase-shifting method |
| CN103474724A (en) * | 2013-09-24 | 2013-12-25 | 上海无线电设备研究所 | High-performance adjustable double-frequency phase shifter and double-frequency passing band adjustment method thereof |
| CN203721852U (en) * | 2013-09-24 | 2014-07-16 | 上海无线电设备研究所 | High performance adjustable double-frequency phase shifter |
| CN107615678A (en) * | 2015-05-12 | 2018-01-19 | 华为技术有限公司 | A kind of double frequency phased array |
| CN105337012A (en) * | 2015-09-30 | 2016-02-17 | 南京航空航天大学 | Double-frequency coupler based on step-type impedance transformer |
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