CN102832427B - Wideband phase shifter and design method thereof - Google Patents
Wideband phase shifter and design method thereof Download PDFInfo
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- CN102832427B CN102832427B CN201210308718.8A CN201210308718A CN102832427B CN 102832427 B CN102832427 B CN 102832427B CN 201210308718 A CN201210308718 A CN 201210308718A CN 102832427 B CN102832427 B CN 102832427B
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- line
- conversion portion
- phase
- phase shift
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/18—Phase-shifters
- H01P1/184—Strip line phase-shifters
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- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
The invention discloses a wideband phase shifter and a design method thereof in the technical field of phase shifters. The wideband phase shifter comprises a strip line and conversion portions arranged on the strip line, and 180-degree anti-phase at the positions of the conversion portions is achieved by disconnecting and reconnecting the strip line by the aid of the conversion portions. The strip line comprises one or more groups of bi-layer micro-strip lines, and the conversion portions which are electrical connection portions are arranged on the one or more groups of bi-layer micro-strip lines and are positioned at the optional positions of the bi-layer micro-strip lines. The bi-layer micro-strip lines are flexible in wiring and used for realizing symmetric design during anti-phase frequency shift design. The length of each bi-layer micro-strip line can be symmetric length and is used for realizing anti-phase phase shift, or the length of each bi-layer micro-strip line can be asymmetric length and is used for adjusting phase shift to realize approximate 180-degree phase shift. The wideband phase shifter is easy to integrate, small in size and wide in frequency band, is capable of combining design requirements of a power divider and covering multiple frequency bands and is used for micro-strip antennas and micro-strip feed systems.
Description
Technical field
The present invention relates to phase shifter technical field, specifically a kind of wide frequency band phase shift device and method for designing thereof can be used in microstrip antenna, feed system.
Background technology
The developing rapidly and applying of mobile communication technology, has effectively promoted modern communications to miniaturization, integrated, the future development of frequency range the more.Microstrip antenna and feeding network have that price is low, integration good, be convenient to the advantages such as processing, in extensive use and wireless communication system.And the phase shifter matching with microstrip antenna and microstrip feed network few, it designs conventionally and frequency height correlation, and versatility is poor, becomes one of bottleneck of restriction technological progress, thereby design is easy to integratedly, broad-band phase shifter becomes one of focus of domestic and international research.
Conventionally, micro belt shifting phase is realized by the microstrip line of certain length, and its length is relevant with the center frequency point of design.Therefore, be difficult to take into account all frequencies of whole bandwidth, realize broadband phase shift.In addition, for 180 degree of realizing difference excitation differ, conventionally need the microstrip line of an excitation end than the electrical length of long 180 degree of another excitation end, make integral feed structure asymmetric, be unfavorable for the application in symmetrical antenna design.For example, in national microwave and millimeter wave meeting paper in 2007, " the anti-phase power divider in broadband based on parallel strips " literary composition of the people such as Chen Jianxin has designed novel anti-phase power divider.But the flexible design degree in literary composition is very low, and the compatibility of its anti-phase part is not high, is more difficultly combined with other microstrip structures, realizes flexible and changeable design.
Summary of the invention
The present invention is directed to above shortcomings in prior art, a kind of wide frequency band phase shift device and method for designing thereof are provided.
The present invention is achieved by the following technical solutions.
A kind of wide frequency band phase shift device, comprises band line and conversion portion, and described conversion portion is arranged on band line, disconnects also connecting band line again by conversion portion, locational anti-phase for realizing this.
Described band line is some groups of double-layer microstrip-lines, and described conversion portion is electric connecting member, and its quantity is one or more, and is arranged on wherein the arbitrary position on arbitrary group or multibilayer microstrip line.
Described double-layer microstrip-line comprises epipelagic zone line and lower floor's band line, and wherein, described epipelagic zone line comprises Part I and Part II, lays respectively at the both sides of conversion portion; Described lower floor band line comprises Part III and Part IV, lays respectively at the both sides of conversion portion.
Described conversion portion disconnects Part I and Part II, Part III and Part IV respectively, and Part I is connected respectively with three parts with Part IV, Part II.
Described wide frequency band phase shift device also comprises floor, and described floor is of coupled connections with band line.
A method for designing for described wide frequency band phase shift device, comprises the following steps:
The first step, according to design and wiring needs, determines band line quantity, and definite conversion portion quantity, conversion portion is placed on to the arbitrary position with line simultaneously;
Second step, is arranged to comprise epipelagic zone line and lower floor's band line by described band line, and wherein, epipelagic zone line comprises Part I and Part II, lays respectively at the both sides of conversion portion; Lower floor's band line comprises Part III and Part IV, lays respectively at the both sides of conversion portion;
The 3rd step, arranges Part I and is connected respectively with Part IV with Part II, Part III;
The 4th step, conversion portion disconnects Part I and Part II, Part III and Part IV respectively, and Part I is connected respectively with three parts with Part IV, Part II, thereby realize, this is locational anti-phase.
The method for designing of described double-layer microstrip-line is:
-described double-layer microstrip-line is arranged to symmetrical length, for realizing anti-phase phase shift; Or,
-described double-layer microstrip-line is arranged to asymmetric length, for regulating phase shift.
Described double-layer microstrip-line is arranged to asymmetric length, for realizing the phase shift that approaches 180 degree.
Taking the present invention in conjunction with positive power splitter as example, the course of work of the present invention is, two power stage ports of positive power splitter are connected respectively to two groups of double-deck micro-bringing, and wherein on one group of double-layer microstrip-line, have a conversion portion.If the length of two groups of double-layer microstrip-lines of symmetric design, this phase shifter plays inverter functionality, is combined into an anti-phase power splitter with positive power splitter, can provide difference excitation for antenna etc.
Wide frequency band phase shift device provided by the invention and method for designing thereof, be easy to integratedly, and volume is little, and bandwidth can, in conjunction with the designing requirement of power splitter, cover multiple frequency ranges, for microstrip antenna and microstrip-fed system.
Brief description of the drawings
Fig. 1 is front view of the present invention;
Fig. 2 is reverse view of the present invention;
Fig. 3 is conversion portion schematic diagram of the present invention;
Fig. 4 is wilkinson positive power splitter S parameter amplitude;
Fig. 5 is wilkinson positive power splitter S parameter phase;
Fig. 6 is the S parameter amplitude of anti-phase power splitter;
Fig. 7 is the S parameter phase of anti-phase power splitter;
In figure, 1 is microstrip line, and 2 is conversion portion, and 3 is power splitter, and 4 is floor, and 101 is epipelagic zone line, and 102 is lower floor's band line.
Embodiment
Below embodiments of the invention are elaborated: the present embodiment is implemented under taking technical solution of the present invention as prerequisite, provided detailed execution mode and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
The present embodiment comprises: band line 1 and conversion portion 2, described conversion portion 2 is arranged on band line 1, disconnects also connecting band line 1 again by conversion portion 2, locational anti-phase for realizing this.
Above-mentioned anti-phase be that 180 degree are anti-phase.
Preferably, band line 1 can be some groups of double-layer microstrip-lines, and conversion portion 2 is electric connecting member, and its quantity is one or more, and is arranged on the arbitrary position on one or more groups double-layer microstrip-line wherein.The position of conversion portion is flexible, can, according to the space needs that connect up, on band line, place transducer.
Double-layer microstrip-line comprises epipelagic zone line 101 and lower floor's band line 102, and wherein, epipelagic zone line 101 comprises Part I and Part II, lays respectively at the both sides of conversion portion 2; Lower floor's band line 102 comprises Part III and Part IV, lays respectively at the both sides of conversion portion 2.
Conversion portion 2 disconnects Part I and Part II, Part III and Part IV respectively, and Part I is connected respectively with three parts with Part IV, Part II.
Preferably, the present embodiment can also comprise floor, and floor 4 is of coupled connections with band line 1, for improving characteristic.
Embodiment 2
The method for designing of the wide frequency band phase shift device that embodiment 2 provides for embodiment 1.
The present embodiment comprises the following steps:
The first step, according to design and wiring needs, determines band line quantity, and definite conversion portion quantity, conversion portion is placed on to the arbitrary position with line simultaneously; According to the needs of Functional Design and wiring, determine the quantity of conversion portion, each conversion portion can be realized anti-phase function; According to Functional Design and wiring needs, design band line.Band line can be bilayer zone line, plays connection function.
Second step, is arranged to comprise epipelagic zone line and lower floor's band line by described band line, and wherein, epipelagic zone line comprises Part I and Part II, lays respectively at the both sides of conversion portion; Lower floor's band line comprises Part III and Part IV, lays respectively at the both sides of conversion portion;
The 3rd step, arranges Part I and is connected respectively with Part IV with Part II, Part III;
The 4th step, conversion portion disconnects Part I and Part II, Part III and Part IV respectively, and Part I is connected respectively with three parts with Part IV, Part II, thereby realize, this is locational anti-phase; Placing the conversion portion of quantification with the optional position of line, conversion portion disconnects original band line reconnect.The location positioning of conversion portion does not almost limit, and can determine according to factors such as spatial arrangements.
Above-mentioned anti-phase be that 180 degree are anti-phase.
The method for designing of double-layer microstrip-line is:
-double-layer microstrip-line is arranged to symmetrical length, for realizing anti-phase phase shift; Or,
-double-layer microstrip-line is arranged to asymmetric length, for regulating phase shift.
Double-layer microstrip-line is arranged to asymmetric length, for realizing the phase shift that approaches 180 degree.
Be specially,
Taking above-described embodiment in conjunction with positive power splitter as example, the course of work of above-described embodiment is that two power stage ports of positive power splitter are connected respectively on two groups of double-layer microstrip-lines, wherein on one group of double-layer microstrip-line, have a conversion portion 1.If the length of two groups of double-layer microstrip-lines of symmetric design, this phase shifter plays inverter functionality, is combined into an anti-phase power splitter with positive power splitter, can provide difference excitation for antenna etc.
Phase shifter and 3 combinations of wilkinson positive power splitter, the anti-phase power splitter in broadband of a symmetrical structure of composition.These power splitter 3 working frequency range are 1.0 – 3.0GHz, therefore following this band characteristic of all investigating.Similarly, also Phase-Shifting Characteristics preferably of other working frequency range repeats no more herein.As shown in Figure 1,3 two outbound ports of wilkinson positive power splitter are connected with two groups of double-layer microstrip-lines of phase shifter respectively, wherein on one group of double-layer microstrip-line, have a transformational structure 2, realize inverter functionality.In this example, realizing is just the anti-phase of 180 degree, and two groups of double-layer microstrip-lines are equal in length.By regulating the relative length of two groups of microstrip lines, can adjust phase shift.As shown in Figure 2, this structure can, according to the design needs of power splitter 3, by increasing floor 4, be optimized overall permanence.
Conversion portion 2 is electric connecting members, can be according to design needs, and this function is realized in any position of phase shifter band line 1.As shown in Figure 3, for the ease of identification, double-layer microstrip-line is comprised to epipelagic zone line 101 and lower floor's band line 102.Epipelagic zone line 101 is divided into A, B two parts, lays respectively at the both sides of conversion portion 2.Lower floor's band line 102 is also converted part 2 and is divided into a, two parts of b.A is connected respectively with b with B, a.Conversion portion is by A and B, a and b disconnection, and by A and b, B is connected with a.By add conversion portion 2 on double-layer microstrip-line, can realize these locational 180 degree anti-phase.
The S parameter phase and magnitude of wilkinson power splitter as shown in Figure 4, Figure 5, in conjunction with the anti-phase power splitter S parameter phase and magnitude after phase shifter as shown in Figure 6, Figure 7.As can be seen here, phase shifter can not affect the merit point characteristic of power splitter, makes on the contrary its characteristic more optimize.Substantially can realize and stablize phase shift 180 and spend at full frequency band, error is no more than 5 degree.
The present embodiment is easy to integrated, and volume is little, and bandwidth can, in conjunction with the designing requirement of power splitter, cover multiple frequency ranges, for microstrip antenna and microstrip-fed system.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. a wide frequency band phase shift device, is characterized in that, comprises band line and conversion portion, and described conversion portion is arranged on band line, disconnects also connecting band line again by conversion portion, for realizing anti-phase on conversion portion position;
Described wide frequency band phase shift device is realized by following method for designing:
The first step, according to design and wiring needs, determines band line quantity, and definite conversion portion quantity, conversion portion is placed on to the arbitrary position with line simultaneously;
Second step, is arranged to comprise epipelagic zone line and lower floor's band line by described band line, and wherein, epipelagic zone line comprises Part I and Part II, lays respectively at the both sides of conversion portion; Lower floor's band line comprises Part III and Part IV, lays respectively at the both sides of conversion portion;
The 3rd step, arranges Part I and is connected respectively with Part IV with Part II, Part III;
The 4th step, conversion portion disconnects Part I and Part II, Part III and Part IV respectively, and Part I is connected respectively with three parts with Part IV, Part II, thereby realizes anti-phase on conversion portion position.
2. wide frequency band phase shift device according to claim 1, it is characterized in that, described band line is some groups of double-layer microstrip-lines, and described conversion portion is electric connecting member, its quantity is one or more, and is arranged on wherein the arbitrary position on arbitrary group or multibilayer microstrip line.
3. wide frequency band phase shift device according to claim 1 and 2, is characterized in that, comprises floor, and described floor is of coupled connections with band line.
4. the method for designing of wide frequency band phase shift device according to claim 1, is characterized in that, the method for designing of described double-layer microstrip-line is:
-described double-layer microstrip-line is arranged to symmetrical length, for realizing anti-phase phase shift; Or,
-described double-layer microstrip-line is arranged to asymmetric length, for regulating phase shift.
5. the method for designing of wide frequency band phase shift device according to claim 4, is characterized in that, described double-layer microstrip-line is arranged to asymmetric length, for realizing the phase shift that approaches 180 degree.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210308718.8A CN102832427B (en) | 2012-08-27 | 2012-08-27 | Wideband phase shifter and design method thereof |
| PCT/CN2012/001457 WO2014032214A1 (en) | 2012-08-27 | 2012-10-29 | Broadband phase shifter and designing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210308718.8A CN102832427B (en) | 2012-08-27 | 2012-08-27 | Wideband phase shifter and design method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102832427A CN102832427A (en) | 2012-12-19 |
| CN102832427B true CN102832427B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210308718.8A Expired - Fee Related CN102832427B (en) | 2012-08-27 | 2012-08-27 | Wideband phase shifter and design method thereof |
Country Status (2)
| Country | Link |
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| CN (1) | CN102832427B (en) |
| WO (1) | WO2014032214A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103367850A (en) * | 2013-06-24 | 2013-10-23 | 华为技术有限公司 | Balun and electronic product |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3189794B2 (en) * | 1998-07-27 | 2001-07-16 | 日本電気株式会社 | Wireless transmitting / receiving apparatus and transmission spurious prevention method |
| EP1976063B1 (en) * | 2007-03-30 | 2012-09-05 | Sony Deutschland GmbH | Broadband beam steering antenna |
| CN101202369B (en) * | 2007-12-11 | 2011-12-07 | 中国电子科技集团公司第五十五研究所 | Miniature MEMS switching line phase shifter |
| CN102148416B (en) * | 2010-11-24 | 2013-08-28 | 南京理工大学 | Microwave and millimeter wave ultra wide band six-bit microwave monolithic integrated circuit (MMIC) digital phase shifter |
| CN102496753B (en) * | 2011-12-26 | 2013-11-06 | 中国电子科技集团公司第二十六研究所 | Dispersion-free delay phase shifter and preparation technology thereof |
-
2012
- 2012-08-27 CN CN201210308718.8A patent/CN102832427B/en not_active Expired - Fee Related
- 2012-10-29 WO PCT/CN2012/001457 patent/WO2014032214A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2014032214A1 (en) | 2014-03-06 |
| CN102832427A (en) | 2012-12-19 |
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