CN102394382A - Compact type ultra wide band polarizer - Google Patents
Compact type ultra wide band polarizer Download PDFInfo
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- CN102394382A CN102394382A CN2011101984875A CN201110198487A CN102394382A CN 102394382 A CN102394382 A CN 102394382A CN 2011101984875 A CN2011101984875 A CN 2011101984875A CN 201110198487 A CN201110198487 A CN 201110198487A CN 102394382 A CN102394382 A CN 102394382A
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Abstract
The invention relates to the technical field of communication and in particular discloses a compact type ultra wide band polarizer. The compact type ultra wide band polarizer comprises a circular waveguide port, a transition chamfer square waveguide and an ultra wide band phase shifter, wherein the circular waveguide port is connected with the ultra wide band phase shifter by virtue of the transition chamfer square waveguide, the circular waveguide port is arranged at the two ends, one end is an input circular waveguide port, and the other end is an output circular waveguide port; the transition chamfer square waveguide is a square waveguide with four ridges chamfers; and the ultra wide band phase shifter is a square waveguide the side wall of which is provided with a horizontal ridge and a vertical ridge, and the horizontal ridge is symmetrically distributed on the two opposite side walls of the square waveguide along the axial direction of the square waveguide. In the invention, a simple and compact structure is adopted, linear circular polarization on two direction field vectors are smartly realized, technical indexes of amplitude and phase for a circular polarizer to be orthogonal with two field components are met, and the compact type ultra wide band polarizer disclosed by the invention has the advantages of compact structure, small volume, light weight, low cost, easiness in processing, easiness in tuning, high efficiency, high power capacity and the like.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of compact ultra broadband circular polarizer.
Background technology
The dual-mode antenna of general autotracking system all adopts the circular polarization radiation mode, and circular polarizer is the critical piece of decision antenna circular polarization performance.Waveguide circular polarization is novel circular polarizer, and it has good circular polarization performance and compact structure, and is convenient to directly and circular waveguide corrugated horn feed docks, and does not need to add in addition changeover portion, thereby realizes the circular polarization radiation of antenna easily.At aspects such as communication, radar, guidance, remote measurement, remote sensing, astronomy and television broadcastings boundless application prospect is arranged.In order to reach tenacious tracking, require antenna to have good circular polarization axial ratio to target.Therefore, developing a kind of omnidirectional circular polarization compact ultra broadband circular polarizer has important practical significance.
At present, the mode of realization waveguide circular polarizer has schemes such as dielectric spacer formula circular polarizer and corrugated waveguide formula circular polarizer.
Dielectric spacer formula circular polarizer scheme generally is through in waveguide, adding dielectric spacer; Partition has 90 ° phase shift to the electric field component of in parallel with vertical both direction; Thereby realize the conversion of linear polarization, have shortcomings such as dielectric loss is big, dielectric spacer is difficult for fixing, environmental suitability difference to circular polarization.
The wavy metal of the some symmetrical configuration of processing on two walls of the general square wave guide symmetry of corrugated waveguide scheme, thus realize 90 ° phase shift to two orthogonally polarized components.The circular polarization characteristics of this antenna depends on the precision of ripple size processing, and its weak point is that the ripple struction in the corrugated waveguide is generally highly very little, and the machining accuracy of requirement is high and be difficult for tuning.
Summary of the invention
The present invention is for solving problems such as general circular polarizer complex structure, the high and difficult adjusting of requirement on machining accuracy; The invention provides a kind of compact broadband waveguide circular polarizer; Can realize good circular polarization technical indicator, and can directly be connected with the corrugated horn feed of circular waveguide input port.
The object of the invention is specifically realized through following technical scheme:
A kind of compact ultra broadband circular polarizer is characterized in that: comprise circular waveguide port, transition chamfering square wave guide and ultra broadband phase shifter, the circular waveguide port connects the ultra broadband phase shifter through transition chamfering square wave guide, and the ultra broadband phase shifter is a square wave guide; Wherein, the circular waveguide port is positioned at two ends, and an end is input circular waveguide port, and the other end is output circular waveguide port; Transition chamfering square wave guide is the square wave guide of four crest line roundings, and directly links to each other with square wave guide as the ultra broadband phase shifter; Sidewall as the square wave guide of ultra broadband phase shifter is provided with two horizontal ridges and two vertical ridge; Two horizontal ridges are distributed in respectively along on two of the square wave guide axis direction relative symmetrical sidewalls, and two vertical ridge are distributed in respectively along on two other relative symmetrical sidewall of square wave guide axis direction.
The horizontal ridge of different size and vertical ridge can make the electric field level component of constant amplitude homophase and vertical component form 90 ° ± 4 ° phase difference, and the assurance amplitude is constant, simultaneously, in waveguide, add the TE that the ridge sheet has reduced waveguide effectively
10The cut-off frequency of mould, and to the almost not influence of cut-off frequency of the higher mode transmitted in the waveguide, this just widely broadening the working band of antenna.
Said horizontal ridge be installed on along the axis direction of square wave guide square wave guide two symmetrical sidewalls in the heart; Horizontal ridge comprises and the contacted rectangular channel of the sidewall of square wave guide; Said rectangular teeth has the rectangular teeth corresponding with rectangular channel on the sidewall of square wave guide; This rectangular channel can the broadening working band; Simultaneously the phase difference that produces 90 ° ± 4 ° is contributed, it is mild that rectangular channel can make the electric field component phase difference of two quadratures change, and makes phase difference in two working frequency range all in 90 ° that require ± 4 ° scopes; Be provided with the transition to the stepped alternation of sidewall surfaces of square wave guide of symmetry along the two ends that rectangular teeth and rectangular channel combine, said transition is used to mate the ultrabroad band impedance.
Further, be provided with 7 rectangular channels on the horizontal ridge, be provided with 7 rectangular teeths corresponding with rectangular channel on two sidewalls as the square wave guide of ultra broadband phase shifter, said rectangular channel is the width rectangular channel identical with the degree of depth.
Said vertical ridge be installed on along the axis direction of square wave guide square wave guide two other symmetrical sidewall in the heart; The least significant end of vertical ridge embeds in the sidewall of square wave guide; And be the plane; The two ends on the plane of said least significant end are to the stepped alternation of the sidewall surfaces of square wave guide, and changeover portion is a transition, are used to mate the broadband impedance.
Said horizontal ridge and vertical ridge all are metal ridge sheets.
Further, said circular waveguide port can be regulated according to coupled circular waveguide bore, and its method is to regulate the internal diameter of said chamfering square wave guide and the chamfer radius of four crest lines.
Beneficial effect of the present invention is following:
The present invention adopts the New Scheme of " four ridge waveguides combine with compact circumference transitional face "; With simple, compact structure; The ingenious component amplitude that has realized two orthogonal polarizations in the waveguide equates, the transmission of 90 ° of phase phasic differences; Accomplished the conversion of line circular polarization, the convenient adjusting can directly be connected with the corrugated horn feed of circular waveguide input port; Have design cycle weak point, compact conformation, volume is little, in light weight, cost is low, be prone to advantages such as processing, efficient is high, power capacity is big.
Description of drawings
Fig. 1 is the structural representation of edge of the present invention perpendicular to square wave guide one sidewall direction
Fig. 2 is the square wave guide structural representation of direction from top to bottom among Fig. 1
Fig. 3 is the standing wave test result of a specific embodiment of the present invention
Fig. 4 is a practical implementation K frequency range axial ratio test result of the present invention
Fig. 5 is a practical implementation Ka frequency range axial ratio test result of the present invention
Wherein, Reference numeral is: 1 circular waveguide port, and 2 transition chamfering square wave guides, 3 horizontal ridges, 4 vertical ridge, 5 square wave guides, the transition of 6 horizontal ridges, the transition of 7 vertical ridge, 8 is adpting flange.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is made further detailed description, but implementation method of the present invention is not limited thereto with the scope that requires protection.
Shown in Fig. 1-2, a kind of compact ultra broadband circular polarizer comprises circular waveguide port one, transition chamfering square wave guide 2 and ultra broadband phase shifter, and the circular waveguide port one connects the ultra broadband phase shifter through transition chamfering square wave guide 2, and the ultra broadband phase shifter is a square wave guide 5; Wherein, the circular waveguide port one is positioned at two ends, and an end is input circular waveguide port one, and the other end is output circular waveguide port one; Transition chamfering square wave guide 2 is formed by four crest line roundings of square wave guide, and directly links to each other with square wave guide 5 as the ultra broadband phase shifter; Sidewall as the square wave guide 5 of ultra broadband phase shifter is provided with two horizontal ridges 3 and two vertical ridge 4; Two horizontal ridges 3 are distributed in respectively along on two of the square wave guide 5 axis directions relative symmetrical sidewalls, and two vertical ridge 4 are distributed in respectively along on two other relative symmetrical sidewall of square wave guide 5 axis directions.
Said two horizontal ridges 3 respectively along the axis direction of square wave guide 5 be installed on square wave guide 5 two symmetrical sidewalls in the heart, horizontal ridge 3 comprises and the contacted rectangular channel of the sidewall of square wave guide 5 that the rectangular teeth corresponding with rectangular channel arranged on the sidewall of said square wave guide 5; Be provided with the transition 6 to the stepped alternation of sidewall surfaces of square wave guide 5 of symmetry along the two ends that rectangular teeth and rectangular channel combine, said transition 6 is used to mate the ultrabroad band impedance.
Further, be provided with 7 rectangular channels on the said horizontal ridge 3, so two sidewalls of square wave guide 5 are provided with 7 rectangular teeths corresponding with rectangular channel, said rectangular channel is the width rectangular channel identical with the degree of depth.
Said two vertical ridge 4 respectively along the axis direction of square wave guide 5 be installed on square wave guide 5 two other symmetrical sidewall in the heart; The least significant end of vertical ridge 4 embeds in the sidewall of square wave guide 5; And be the plane; The two ends on the plane of said least significant end are to the stepped alternation of the sidewall surfaces of square wave guide 5, and changeover portion is a transition 7, are used to mate the broadband impedance.
Said horizontal ridge 3 all is metal ridge sheets with vertical ridge 4.
Further; Said circular waveguide port one can be regulated according to coupled circular waveguide bore; Its method is to regulate the internal diameter of said chamfering square wave guide and the chamfer radius of four crest lines; With the transition of square wave guide 5 and circular waveguide in the realization broadband, and applicable to different corrugated horns or input waveguide.
The bore of said transition chamfering square wave guide 2 is generally 0.93 λ * 0.93 λ (λ is the corresponding wavelength of centre frequency of working frequency range), and chamfer radius is generally 0.24 λ; The bore of said square wave guide 5 is generally 0.9 λ * 0.9 λ (λ is the corresponding wavelength of centre frequency of working frequency range); The thickness of said horizontal ridge 3 is generally 0.214 λ, and length is generally 3.2 λ, highly is generally 0.12 λ; It is 0.07 λ that 7 grooves being opened on it are of a size of width; The degree of depth is generally 0.093 λ, the general equidistant arrangement of said transition 6 length directions, about 0.215 λ of every segment length; Short transverse divides four steps evenly to distribute, and every grade highly is about 0.053 λ; The thickness of said vertical ridge 4 is generally 0.137 λ; Length is generally long slightly than horizontal ridge 3, is about 3.4 λ, highly is generally 0.073 λ; The length direction of said transition 7 is general to divide three sections equidistantly to arrange; About 0.215 λ of every segment length, short transverse also divides three steps evenly to distribute, and every grade highly is about 0.024 λ.
Its radiation characteristic is verified, specific as follows:
A) standing wave has 56.1% less than 1.2 bandwidth, and is less than 1.3, as shown in Figure 3 at the working band standing internal wave;
The K frequency range axial ratio of b) surveying is less than 1.2, and is as shown in Figure 4;
The Ka section axial ratio of c) surveying is less than 0.7, and is as shown in Figure 5.
Explanation is at last: the above-mentioned the preferred embodiments of the present invention that are merely; Be not limited to the present invention; Although the present invention has been carried out detailed explanation with reference to previous embodiment; For a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. compact ultra broadband circular polarizer; It is characterized in that: comprise circular waveguide port (1), transition chamfering square wave guide (2) and ultra broadband phase shifter; Circular waveguide port (1) connects the ultra broadband phase shifter through transition chamfering square wave guide (2), and the ultra broadband phase shifter is square wave guide (5); Wherein, circular waveguide port (1) is positioned at two ends, and an end is input circular waveguide port (1), and the other end is output circular waveguide port (1); Transition chamfering square wave guide (2) is the square wave guide of four crest line roundings, and directly links to each other with square wave guide (5) as the ultra broadband phase shifter; Be respectively arranged with two horizontal ridges (3) and two vertical ridge (4) on the sidewall as the square wave guide (5) of ultra broadband phase shifter; Horizontal ridge (3) is distributed in along on two relative symmetrical sidewalls of square wave guide (5) axis direction, and vertical ridge (4) is distributed in along on two other relative symmetrical sidewall of square wave guide (5) axis direction.
2. compact ultra broadband circular polarizer according to claim 1; It is characterized in that: said two horizontal ridges (3) lay respectively at symmetrical sidewall in the heart; Horizontal ridge (3) comprises and the contacted rectangular channel of sidewall of square wave guide (5) that said rectangular teeth has the rectangular teeth corresponding with rectangular channel on the sidewall of square wave guide (5); Be provided with the transition (6) to the stepped alternation of sidewall surfaces of square wave guide (5) of symmetry along the two ends that rectangular teeth and rectangular channel combine, said transition (6) is used to mate the ultrabroad band impedance.
3. compact ultra broadband circular polarizer according to claim 2 is characterized in that: be provided with 7 rectangular channels on the said horizontal ridge (3), be provided with 7 rectangular teeths corresponding with rectangular channel on two sidewalls of square wave guide (5).
4. compact ultra broadband circular polarizer according to claim 3 is characterized in that: said rectangular channel is the width rectangular channel identical with the degree of depth.
5. according to any described compact ultra broadband circular polarizer of claim 1-4, it is characterized in that: said horizontal ridge (3) is the metal ridge sheet.
6. according to any described compact ultra broadband circular polarizer of claim 5; It is characterized in that: said two vertical ridge (4) lay respectively at two other symmetrical sidewall in the heart; The least significant end of vertical ridge (4) embeds in the sidewall of square wave guide (5), and is the plane, and the two ends on the plane of said least significant end are to the stepped alternation of sidewall surfaces of square wave guide (5); Changeover portion is transition (7), is used to mate the broadband impedance.
7. compact ultra broadband circular polarizer according to claim 6 is characterized in that: said vertical ridge (4) is the metal ridge sheet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110198487.5A CN102394382B (en) | 2011-07-15 | 2011-07-15 | Compact type ultra wide band polarizer |
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| CN201110198487.5A CN102394382B (en) | 2011-07-15 | 2011-07-15 | Compact type ultra wide band polarizer |
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| CN102394382B CN102394382B (en) | 2014-02-05 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709680A (en) * | 2012-06-19 | 2012-10-03 | 成都赛纳赛德科技有限公司 | Waveguide fed slot antenna |
| CN103943918A (en) * | 2014-02-28 | 2014-07-23 | 上海无线电设备研究所 | Circular polarizer and circular-polarized-wave outputting method thereof |
| CN107367642A (en) * | 2017-08-01 | 2017-11-21 | 北京航天光华电子技术有限公司 | It is a kind of measure waveguide circular polarizer axle than device |
| CN108565554A (en) * | 2018-01-25 | 2018-09-21 | 电子科技大学 | A kind of highization Terahertz corrugated horn |
| CN109444834A (en) * | 2018-10-23 | 2019-03-08 | 北京无线电测量研究所 | A kind of circular polarizer assembly test method for reciprocal ferrite phase shifter |
| CN111384476A (en) * | 2020-04-17 | 2020-07-07 | 成都国卫通信技术有限公司 | Circular waveguide circular polarizer loaded by slotting metal diaphragm |
| CN111934102A (en) * | 2020-09-11 | 2020-11-13 | 西安昱科通信技术有限公司 | Novel circular polarizer with integrated broadband structure |
| WO2021034270A1 (en) * | 2019-08-16 | 2021-02-25 | National University Of Singapore | A linear-to-circular polarizer, feeding network, antenna and antenna assembly |
| CN113964536A (en) * | 2021-10-27 | 2022-01-21 | 中国电子科技集团公司第三十八研究所 | Circular polarization two-dimensional wide-angle phase scanning antenna unit and phased array antenna array |
| WO2023050847A1 (en) * | 2021-09-30 | 2023-04-06 | 胡南 | Compact broadband circularly polarized antenna |
| WO2024132122A1 (en) * | 2022-12-20 | 2024-06-27 | Advantest Corporation | An antenna device and an automated test equipment with a ridged blind mating waveguide flange |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087037A (en) * | 2006-06-06 | 2007-12-12 | 启碁科技股份有限公司 | Polarizer |
| CN201327860Y (en) * | 2008-12-03 | 2009-10-14 | 中国航天科技集团公司第五研究院第五〇四研究所 | Circular polarizer with pre-settable phase shifting curve |
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2011
- 2011-07-15 CN CN201110198487.5A patent/CN102394382B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087037A (en) * | 2006-06-06 | 2007-12-12 | 启碁科技股份有限公司 | Polarizer |
| CN201327860Y (en) * | 2008-12-03 | 2009-10-14 | 中国航天科技集团公司第五研究院第五〇四研究所 | Circular polarizer with pre-settable phase shifting curve |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709680B (en) * | 2012-06-19 | 2014-08-06 | 成都赛纳赛德科技有限公司 | Waveguide fed slot antenna |
| CN102709680A (en) * | 2012-06-19 | 2012-10-03 | 成都赛纳赛德科技有限公司 | Waveguide fed slot antenna |
| CN103943918A (en) * | 2014-02-28 | 2014-07-23 | 上海无线电设备研究所 | Circular polarizer and circular-polarized-wave outputting method thereof |
| CN103943918B (en) * | 2014-02-28 | 2016-04-06 | 上海无线电设备研究所 | A kind of method of circular polarizer and output circularly polarised wave thereof |
| CN107367642B (en) * | 2017-08-01 | 2019-06-18 | 北京航天光华电子技术有限公司 | A kind of device measuring waveguide circular polarizer axis ratio |
| CN107367642A (en) * | 2017-08-01 | 2017-11-21 | 北京航天光华电子技术有限公司 | It is a kind of measure waveguide circular polarizer axle than device |
| CN108565554A (en) * | 2018-01-25 | 2018-09-21 | 电子科技大学 | A kind of highization Terahertz corrugated horn |
| CN109444834A (en) * | 2018-10-23 | 2019-03-08 | 北京无线电测量研究所 | A kind of circular polarizer assembly test method for reciprocal ferrite phase shifter |
| WO2021034270A1 (en) * | 2019-08-16 | 2021-02-25 | National University Of Singapore | A linear-to-circular polarizer, feeding network, antenna and antenna assembly |
| CN111384476A (en) * | 2020-04-17 | 2020-07-07 | 成都国卫通信技术有限公司 | Circular waveguide circular polarizer loaded by slotting metal diaphragm |
| CN111934102A (en) * | 2020-09-11 | 2020-11-13 | 西安昱科通信技术有限公司 | Novel circular polarizer with integrated broadband structure |
| WO2023050847A1 (en) * | 2021-09-30 | 2023-04-06 | 胡南 | Compact broadband circularly polarized antenna |
| CN113964536A (en) * | 2021-10-27 | 2022-01-21 | 中国电子科技集团公司第三十八研究所 | Circular polarization two-dimensional wide-angle phase scanning antenna unit and phased array antenna array |
| CN113964536B (en) * | 2021-10-27 | 2023-08-22 | 中国电子科技集团公司第三十八研究所 | Circularly polarized two-dimensional wide-angle phase-scanning antenna unit and phased array antenna array |
| WO2024132122A1 (en) * | 2022-12-20 | 2024-06-27 | Advantest Corporation | An antenna device and an automated test equipment with a ridged blind mating waveguide flange |
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