CN106025451A - Novel waveguide polarizer - Google Patents
Novel waveguide polarizer Download PDFInfo
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- CN106025451A CN106025451A CN201610439955.6A CN201610439955A CN106025451A CN 106025451 A CN106025451 A CN 106025451A CN 201610439955 A CN201610439955 A CN 201610439955A CN 106025451 A CN106025451 A CN 106025451A
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- waveguide
- metp
- circular polarizer
- rectangular
- metal partion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/165—Auxiliary devices for rotating the plane of polarisation
- H01P1/17—Auxiliary devices for rotating the plane of polarisation for producing a continuously rotating polarisation, e.g. circular polarisation
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- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
The invention discloses a novel waveguide polarizer, which comprises a square waveguide (1), a metal partition plate (2) and two waveguide gradient parts (6 and 7), wherein the metal partition plate (2) comprises a receiving unit (3), a transmission unit (4) and a radiation unit (5) which are sequentially connected; the width of the metal partition plate (2) is equal to the length of the inner side of the square waveguide (1); the metal partition plate (2) is arranged at the axisymmetric position of the square waveguide (1); one end of the metal partition plate (2) is in contact with a square public port at one end of the square waveguide (1) and divides the square public port into two rectangular ports; the two waveguide gradient parts (6 and 7) are connected with the two rectangular ports respectively; two orthogonal wave beams received by the square waveguide (1) are converted by the metal partition plate (2); and a left-handed or right-handed circularly polarized signal is achieved by a phase difference generated between the received and converted wave beams. By the novel waveguide polarizer, good properties of the return loss, the insertion loss and the phase difference can be obtained.
Description
Technical field
The present invention relates to a kind of novel waveguide circular polarizer, belong to the technical field of microwave communication.
Background technology
Septum polarizer (Septum Polarizer) is the most widely used circular polarizer, and it is mainly used in the field such as radio astronomy and satellite antenna to realize separation and the synthesis of circularly polarized signal.Its feature is the function of orthomode transducer (OMT) and circular polarizer to be united two into one, and has compact conformation, the advantage such as lightweight.
Use dividing plate circular polarizer so that waveguiding structure is the compactest and the insertion phase concordance of circular polarizer can be made to be protected, have higher using value in the place that phase equilibrium is required, therefore obtain a wide range of applications.Traditional septum polarizer simple in construction, compact, but the performance that it realizes return loss during circular polarisation, insertion loss and phase contrast is relatively low, and its working band only has about 20% simultaneously.
Summary of the invention
The technical problem to be solved is to overcome the deficiencies in the prior art, a kind of novel waveguide circular polarizer is provided, simple structure is utilized to improve, solve septum polarizer simple in construction, compact, it is achieved the problem that during circular polarisation, the performance of return loss, insertion loss and phase contrast is relatively low.
The present invention solves above-mentioned technical problem the most by the following technical solutions:
A kind of novel waveguide circular polarizer, including rectangular waveguide and metal partion (metp), and the waveguide transition that two structures are identical, described metal partion (metp) is made up of reception unit, transmission unit and the radiating element being sequentially connected with, and the width of metal partion (metp) is equal with the inner edge length of rectangular waveguide；Described metal partion (metp) is placed in the formed symmetrical position of rectangular waveguide, and one end of metal partion (metp) contacts with the square public port of rectangular waveguide one end, and square public port is divided into two identical rectangular ports of structure；Said two waveguide transition is connected with two rectangular ports respectively；Rectangular waveguide is received two orthogonal wave beams and is changed by described metal partion (metp), is produced phase contrast by receiving, it is achieved left-handed or right-handed circular polarization signal between wave beam and conversion gained wave beam.
Further, as a preferred technical solution of the present invention: said two waveguide transition uses hierarchic structure.
Further, as a preferred technical solution of the present invention: described reception unit is splayed structure.
Further, as a preferred technical solution of the present invention: described transmission unit uses rectangular configuration.
Further, as a preferred technical solution of the present invention: described reception unit or transmission unit use symmetrical structure.
Further, as a preferred technical solution of the present invention: arrange ripple on described transmission unit.
Further, as a preferred technical solution of the present invention: described radiating element uses parallelogram sturcutre.
The present invention uses technique scheme, can produce following technique effect:
1. a kind of novel waveguide circular polarizer that the present invention provides, compares the dividing plate circular polarizer that traditional structure is single, and this circular polarizer structure is simpler, it is easy to make.
2.
Provided by the present invention is the waveguide circular polarizer different from tradition septum polarizer operation principle, its process realizing circular polarisation is different from conventional baffle circular polarizer, and this waveguide circular polarizer can obtain the performance of good return loss, insertion loss and phase contrast.It is big that this circular polarizer can optimize space, left-handed or right-handed circular polarization signal can be better achieved, have good isolation, can be widely used in the field such as radio astronomy and satellite antenna.
Accompanying drawing explanation
Fig. 1 is the structural representation of novel waveguide circular polarizer of the present invention.
Fig. 2 is the top view of novel waveguide circular polarizer of the present invention.
Fig. 3 is the right view of novel waveguide circular polarizer of the present invention.
Fig. 4 is the schematic diagram that the present invention utilizes the phase difference characteristics of the circular polarizer of HFSS computed in software.
Fig. 5 is the schematic diagram that the present invention utilizes the insertion loss characteristic of the circular polarizer of HFSS computed in software.
Fig. 6 is the schematic diagram that the present invention utilizes the return loss characteristic of the circular polarizer of HFSS computed in software.
Wherein reference is explained: 1-rectangular waveguide, 2-metal partion (metp), and 3-receives unit, 4-transmission unit, 5-radiating element, 6,7-waveguide transition.
Detailed description of the invention
Below in conjunction with Figure of description, embodiments of the present invention are described.
As shown in Figures 1 to 3, the present invention devises a kind of novel waveguide circular polarizer, including rectangular waveguide 1 and metal partion (metp) 2, and the waveguide transition 6,7 that two structures are identical, described metal partion (metp) 2 is made up of the reception unit 3 being sequentially connected with, transmission unit 4 and radiating element 5, and the width of metal partion (metp) 2 is equal with the width of rectangular waveguide 1, i.e. the minor face of metal partion (metp) 2 is wide equal with the inner edge length of rectangular waveguide 1；Described metal partion (metp) 2 is placed in the formed symmetrical position of rectangular waveguide 1, and is contacted by the square public port of one end of metal partion (metp) 2 with rectangular waveguide 1 one end, and square public port is divided into two identical rectangular ports of structure；Said two waveguide transition 6,7 are connected with two rectangular ports respectively, i.e. said two waveguide transition 6,7 lays respectively at two rear flank of metal partion (metp) 2 and is arranged on same one end of rectangular waveguide 1, and the waveguide transition that will be located in metal partion (metp) 2 homonymy is connected with port, it is achieved from rectangular port to the conversion of standard rectangular waveguide port；Thus, the wave beam utilizing the TE01 pattern being parallel to metal partion (metp) 2 that rectangular waveguide 1 received by metal partion (metp) 2 is converted into the wave beam being perpendicular to metal partion (metp) 2, and this conversion gained is perpendicular to the wave beam of metal partion (metp) 2 and the equal decile of wave beam of the TE10 pattern being perpendicular to metal partion (metp) 2 rectangular waveguide 1 received, TE10 mould and TE01 mould also can produce the phase contrast of 90 degree in the process, thus realize left-handed or right-handed circular polarization signal.
In said structure, said two waveguide transition 6,7 is preferably in hierarchic structure, it is arranged at the both sides of metal partion (metp) 2 with being further preferably symmetric, as shown in Figure 2, two waveguide transition 6,7 are in hierarchic structure and are symmetrically located at the both sides of rectangular waveguide 1, formed it into symmetrical structure by metal partion (metp) 2, utilize the waveguide transition 6,7 of ladder can realize from rectangular port to the conversion of standard rectangular waveguide port.
Described reception unit 3 is preferably used splayed structure by the present invention, uses splayed can easily facilitate the reception of signal as it is shown on figure 3, receive unit 3.Further, receive unit 3 and use symmetrical structure, be symmetrical set, as shown in Figure 3 relative to the upper lower wall of rectangular waveguide 1 the most as shown in figure so that reception unit 3 is in placement, and its axis of symmetry overlaps with the line of symmetry at lower wall place in rectangular waveguide 1.
In the present invention, described transmission unit 4 the most preferably uses rectangular configuration, uses rectangular configuration to be more favorable for the transmission of signal, one end of rectangular configuration connect and receive unit 3, and the other end connects radiating element 5.Described transmission unit 4 may be used without symmetrical structure equally, is i.e. symmetrical set, as shown in Figure 3 relative to the upper lower wall of rectangular waveguide 1 so that transmission unit 4 is in placement, and its axis of symmetry overlaps with the line of symmetry at lower wall place in rectangular waveguide 1.
Further, described transmission unit 4 also can arrange ripple, the present embodiment is selected under rectangular configuration, sets up separately and put rectangle ripple struction on the upper wall and lower wall of rectangular configuration, and the purpose increasing this ripple struction is to adjust the phase contrast of this waveguide circular polarizer.But invention is not limited to this kind of rectangle ripple, and the ripple of other shapes such as zigzag or waveform is equally applicable, and is not limited under rectangular configuration, and the most applicable ripple struction of setting up of other structures, the present invention is not limited thereof.
And, the most described radiating element 5 can use parallelogram sturcutre, and this structure can well realize the radiation of ripple.This invention radiating element is not limited to parallelogram sturcutre, and other structures are equally applicable.
The operation principle of the novel waveguide circular polarizer of the present invention is different from traditional dividing plate circular polarizer, its operation principle is: when from two orthogonal patterns TE10 of square public port and TE01 through metal partion (metp) 2 time, be perpendicular to metal partion (metp) 2 TE10 mould wave beam by etc. amplitude assign to metal partion (metp) 2 both sides；And when being parallel to the wave beam arrival metal partion (metp) 2 of the TE01 mould of metal partion (metp) 2, first collected by the reception unit 3 of metal partion (metp) 2, radiating element 5 is arrived through transmission unit 4, then being assigned to metal partion (metp) 2 both sides by amplitudes such as radiating elements 5, the wave beam of the pattern being parallel to metal partion (metp) 2 in this process is changed to be perpendicular to the wave beam of the pattern of metal partion (metp) 2.Arrive radiating element 5 ripple by etc. amplitude assign to metal partion (metp) 2 backward before propagate respectively through waveguide transition 6,7 arrive two rectangular ports.At the transmission unit 4 of metal partion (metp) 2, when the upper wall of transmission unit in rectangular configuration and lower wall have symmetrical ripple struction, the purpose adding ripple is to adjust the phase contrast of this waveguide circular polarizer.During whole, transmission coefficient owing to being parallel to during the multi-beam transmission of the TE01 mould of metal partion (metp) 2 is different from the transmission coefficient of the wave beam of the vertical TE10 mould with metal partion (metp) 2, the structure of ripple struction and radiating element by optimizing transmission unit can produce the phase contrast of 90 degree, thus left-handed or right-handed circular polarization signal is better achieved.
As shown in Figure 4, the beam phase giving two patterns TE10 of the public port of the novel waveguide circular polarizer that the present invention utilizes HFSS Software simulation calculation to obtain and TE01 is poor, in the frequency band range of 8.7 to 9.5GHz, the beam phase difference of two patterns is in the range of 70 ° to 110 °, owing to this model has symmetrical structure, so this waveguide circular polarizer can realize left-handed and right hand signal transmit-receive sharing function.
As shown in Figure 5, give the schematic diagram of the insertion loss of two ports in left and right of the novel waveguide circular polarizer that the present invention utilizes HFSS Software simulation calculation to obtain, in the frequency band range of 8.7 to 9.5GHz, the insertion loss value of two ports in left and right is below-30dB, illustrates that this circular polarizer has good isolation.
As shown in Figure 6, give the schematic diagram of the return loss of the TE01 mould of the public port of the novel waveguide circular polarizer that the present invention utilizes HFSS Software simulation calculation to obtain, in the frequency band range of 8.7 to 9.6GHz, return loss is substantially below-20dB, and this index has reached acceptable scope.
In sum, this novel waveguide circular polarizer is in the frequency band of 8.7 to 9.5GHz, and its phase contrast, insertion loss and return loss are the most within the acceptable range.
Waveguide circular polarizer provided by the present invention, its process realizing circular polarisation is different from conventional baffle circular polarizer, it is possible to obtain the performance of good return loss, insertion loss and phase contrast.It is big that this circular polarizer can optimize space, left-handed or right-handed circular polarization signal can be better achieved, have good isolation, can be widely used in the field such as radio astronomy and satellite antenna.
Above in conjunction with accompanying drawing, embodiments of the present invention are explained in detail, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art are possessed, it is also possible to make a variety of changes on the premise of without departing from present inventive concept.
Claims (7)
1. a novel waveguide circular polarizer, including rectangular waveguide (1) and metal partion (metp) (2), and the waveguide transition (6,7) that two structures are identical, it is characterized in that, described metal partion (metp) (2) is made up of the reception unit (3) being sequentially connected with, transmission unit (4) and radiating element (5), and the width of metal partion (metp) (2) is equal with the inner edge length of rectangular waveguide (1)；Described metal partion (metp) (2) is placed in the formed symmetrical position of rectangular waveguide (1), and one end of metal partion (metp) (2) contacts with the square public port of rectangular waveguide (1) one end, and square public port is divided into two identical rectangular ports of structure；Said two waveguide transition (6,7) is connected with two rectangular ports respectively；Rectangular waveguide (1) is received two orthogonal wave beams and is changed by described metal partion (metp) (2), is produced phase contrast by receiving, it is achieved left-handed or right-handed circular polarization signal between wave beam and conversion gained wave beam.
Novel waveguide circular polarizer the most according to claim 1, it is characterised in that: said two waveguide transition (6,7) uses hierarchic structure.
Novel waveguide circular polarizer the most according to claim 1, it is characterised in that: described reception unit (3) uses splayed structure.
Novel waveguide circular polarizer the most according to claim 1, it is characterised in that: described transmission unit (4) uses rectangular configuration.
Novel waveguide circular polarizer the most according to claim 1, it is characterised in that: described reception unit (3) or transmission unit (4) use symmetrical structure.
Novel waveguide circular polarizer the most according to claim 1, it is characterised in that: described transmission unit is provided with ripple on (4).
Novel waveguide circular polarizer the most according to claim 1, it is characterised in that: described radiating element (5) uses parallelogram sturcutre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439955.6A CN106025451B (en) | 2016-06-20 | 2016-06-20 | A kind of novel waveguide circular polarizer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610439955.6A CN106025451B (en) | 2016-06-20 | 2016-06-20 | A kind of novel waveguide circular polarizer |
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| CN106025451A true CN106025451A (en) | 2016-10-12 |
| CN106025451B CN106025451B (en) | 2019-02-26 |
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| CN201610439955.6A Active CN106025451B (en) | 2016-06-20 | 2016-06-20 | A kind of novel waveguide circular polarizer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183318A (en) * | 2017-12-28 | 2018-06-19 | 航天恒星空间技术应用有限公司 | A kind of compact double-circle polarization waveguide array antenna and its feed method |
| CN109524793A (en) * | 2018-10-15 | 2019-03-26 | 中国电子科技集团公司第二十九研究所 | Compact double-circle polarization device |
| CN112701438A (en) * | 2020-12-22 | 2021-04-23 | 华南理工大学 | Polarization reconfigurable bidirectional co-rotation direction circularly polarized antenna based on dielectric polarizer |
| US20220043197A1 (en) * | 2020-08-10 | 2022-02-10 | Lockheed Martin Corporation | Septumless omt polarizer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB818447A (en) * | 1956-10-31 | 1959-08-19 | Bendix Aviat Corp | Microwave antenna feed for circular polarization |
| US4395685A (en) * | 1980-05-01 | 1983-07-26 | Plessey Overseas Limited | Waveguide junction for producing circularly polarized signal |
-
2016
- 2016-06-20 CN CN201610439955.6A patent/CN106025451B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB818447A (en) * | 1956-10-31 | 1959-08-19 | Bendix Aviat Corp | Microwave antenna feed for circular polarization |
| US4395685A (en) * | 1980-05-01 | 1983-07-26 | Plessey Overseas Limited | Waveguide junction for producing circularly polarized signal |
Non-Patent Citations (1)
| Title |
|---|
| WEIYE ZHONG等: ""X-band Compact Septum Polarizer Design"", 《MICROWAVE TECHNOLOGY& COMPUTATIONAL ELECTROMAGNETICS》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183318A (en) * | 2017-12-28 | 2018-06-19 | 航天恒星空间技术应用有限公司 | A kind of compact double-circle polarization waveguide array antenna and its feed method |
| CN109524793A (en) * | 2018-10-15 | 2019-03-26 | 中国电子科技集团公司第二十九研究所 | Compact double-circle polarization device |
| US20220043197A1 (en) * | 2020-08-10 | 2022-02-10 | Lockheed Martin Corporation | Septumless omt polarizer |
| US11693166B2 (en) * | 2020-08-10 | 2023-07-04 | Lockheed Martin Corporation | Septumless OMT polarizer |
| CN112701438A (en) * | 2020-12-22 | 2021-04-23 | 华南理工大学 | Polarization reconfigurable bidirectional co-rotation direction circularly polarized antenna based on dielectric polarizer |
| CN112701438B (en) * | 2020-12-22 | 2022-03-29 | 华南理工大学 | Polarization reconfigurable bidirectional co-rotation direction circularly polarized antenna based on dielectric polarizer |
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| CN106025451B (en) | 2019-02-26 |
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