CN106025451B - A kind of novel waveguide circular polarizer - Google Patents
A kind of novel waveguide circular polarizer Download PDFInfo
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- CN106025451B CN106025451B CN201610439955.6A CN201610439955A CN106025451B CN 106025451 B CN106025451 B CN 106025451B CN 201610439955 A CN201610439955 A CN 201610439955A CN 106025451 B CN106025451 B CN 106025451B
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- waveguide
- metp
- rectangular
- metal partion
- circular polarizer
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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
Abstract
The invention discloses a kind of novel waveguide circular polarizers, including rectangular waveguide (1) and metal partion (metp) (2), and two waveguide transitions (6,7), the metal partion (metp) (2) is made of sequentially connected receiving unit (3), transmission unit (4) and radiating element (5), and metal partion (metp) (2) is wide equal with the inner edge of rectangular waveguide (1) length；The metal partion (metp) (2) is placed in the formed symmetrical position of rectangular waveguide (1), and one end of metal partion (metp) (2) is contacted with the rectangular public port of rectangular waveguide (1) one end, is divided into two rectangular ports；Described two waveguide transitions (6,7) connect with two rectangular ports respectively；Rectangular waveguide (1) is received two orthogonal wave beams and converted by the metal partion (metp) (2), is generated phase difference between gained wave beam by receiving and converting, is realized left-handed or right-handed circular polarization signal.The present invention can get the performance of good return loss, insertion loss and phase difference.
Description
Technical field
The present invention relates to a kind of novel waveguide circular polarizers, belong to the technical field of microwave communication.
Background technique
Septum polarizer (Septum Polarizer) is widely used circular polarizer in recent ten years, it is mainly used
The separation and synthesis of circularly polarized signal are realized in the fields such as radio astronomy and satellite antenna.Its feature is by orthogonal moding
The function of parallel operation (OMT) and circular polarizer is combined into one, and is had many advantages, such as compact-sized, light-weight.
It uses partition circular polarizer that waveguiding structure can be made simple and compact and the insertion phase of circular polarizer can be made
Consistency is protected, and is having higher application value to the place that phase equilibrium requires, therefore have been widely used.
Traditional septum polarizer structure is simple, compact, but it realizes return loss, insertion loss and phase during circular polarisation
The performance of difference is relatively low, while its working band only has 20% or so.
Summary of the invention
Technical problem to be solved by the present invention lies in overcome the deficiencies of the prior art and provide a kind of novel waveguide circular polarisation
Device, using simple structure improve, solve septum polarizer structure it is simple, compact, realize circular polarisation during return loss,
The relatively low problem of the performance of insertion loss and phase difference.
The present invention specifically uses following technical scheme to solve above-mentioned technical problem:
A kind of novel waveguide circular polarizer, including rectangular waveguide and metal partion (metp) and the identical waveguide of two structures are gradually
Becoming part, the metal partion (metp) is made of sequentially connected receiving unit, transmission unit and radiating element, and metal partion (metp)
It is wide equal with the inner edge of rectangular waveguide length；The metal partion (metp) is placed in the formed symmetrical position of rectangular waveguide, and metal partion (metp)
One end is contacted with the rectangular public port of rectangular waveguide one end, and rectangular public port is divided into the identical rectangular end of two structures
Mouthful；Described two waveguide transitions are connect with two rectangular ports respectively；Rectangular waveguide is received two by the metal partion (metp)
A orthogonal wave beam is converted, and by generating phase difference between reception wave beam and conversion gained wave beam, realizes left-handed or dextrorotation
Circularly polarized signal.
Further, as a preferred technical solution of the present invention: described two waveguide transitions use ladder knot
Structure.
Further, as a preferred technical solution of the present invention: the receiving unit is in splayed structure.
Further, as a preferred technical solution of the present invention: the transmission unit uses rectangular configuration.
Further, as a preferred technical solution of the present invention: the receiving unit or transmission unit are using symmetrical
Structure.
Further, as a preferred technical solution of the present invention: ripple is arranged on the transmission unit.
Further, as a preferred technical solution of the present invention: the radiating element uses parallelogram sturcutre.
The present invention by adopting the above technical scheme, can have the following technical effects:
1. a kind of novel waveguide circular polarizer provided by the invention, the partition circular polarizer single compared to traditional structure,
The circular polarizer structure is simpler, is easy to make.
2. provided by the present invention is the waveguide circular polarizer different from traditional septum polarizer working principle, in fact
The process of existing circular polarisation is different from conventional baffle circular polarizer, which can obtain good return loss, insert
Enter the performance of loss and phase difference.It is big that the circular polarizer can optimize space, and left-handed or right-handed circular polarization can be better achieved
Signal has good isolation, can be widely used in the fields such as radio astronomy and satellite antenna.
Detailed description of the invention
Fig. 1 is the structural schematic diagram 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 schematic diagram of the present invention using the phase difference characteristics of the circular polarizer of HFSS software calculating.
Fig. 5 is schematic diagram of the present invention using the insertion loss characteristic of the circular polarizer of HFSS software calculating.
Fig. 6 is schematic diagram of the present invention using the return loss characteristic of the circular polarizer of HFSS software calculating.
Wherein appended drawing reference is explained: 1- rectangular waveguide, 2- metal partion (metp), 3- receiving unit, 4- transmission unit, and 5- radiation is single
Member, 6,7- waveguide transition.
Specific embodiment
Embodiments of the present invention are described with reference to the accompanying drawings of the specification.
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 identical waveguide transition 6,7 of two structures, the metal partion (metp) 2 is single by sequentially connected receiving unit 3, transmission
Member 4 and radiating element 5 are constituted, and the width of metal partion (metp) 2 is equal with the width of rectangular waveguide 1, i.e. the short side of metal partion (metp) 2
It is wide equal with the inner edge of rectangular waveguide 1 length；The metal partion (metp) 2 is placed in the formed symmetrical position of rectangular waveguide 1, and by metal every
One end of plate 2 is contacted with the rectangular public port of 1 one end of rectangular waveguide, and rectangular public port is divided into the identical square of two structures
Shape port；Described two waveguide transitions 6,7 are connect with two rectangular ports respectively, i.e., described two waveguide transitions 6,
7 are located at the same end that rectangular waveguide 1 is arranged in behind the two sides of metal partion (metp) 2, and will be located at the ipsilateral waveguide of metal partion (metp) 2
Transition is connected with port, realizes the conversion from rectangular port to standard rectangular waveguide port；Metal partion (metp) 2 is utilized as a result,
By rectangular waveguide 1 the wave beam of the received TE01 mode for being parallel to metal partion (metp) 2 be converted into the wave perpendicular to metal partion (metp) 2
Beam, and will be received perpendicular to metal partion (metp) 2 perpendicular to the wave beam of metal partion (metp) 2 and by 1 institute of rectangular waveguide obtained by the conversion
TE10 mode the equal equal part of wave beam, TE10 mould and TE01 mould can also generate 90 degree of phase difference in the process, to realize
Left-handed or right-handed circular polarization signal.
In said structure, described two waveguide transitions 6,7 are in preferably hierarchic structure, are further preferably symmetric
Ground is set to the two sides of metal partion (metp) 2, as shown in Fig. 2, two waveguide transitions 6,7 are in hierarchic structure and the side of being symmetrically located at
The two sides of shape waveguide 1 form it into symmetrical structure by metal partion (metp) 2, using the waveguide transition 6,7 of ladder may be implemented from
Conversion of the rectangular port to standard rectangular waveguide port.
The receiving unit 3 is preferably used splayed structure by the present invention, as shown in figure 3, receiving unit 3 uses eight words
Shape can easily facilitate the reception of signal.Further, receiving unit 3 uses symmetrical structure, i.e., as shown in figure relative to side
The upper lower wall of shape waveguide 1 is symmetrical set, as shown in figure 3, make receiving unit 3 in placement, the axis of symmetry and rectangular wave
The line of symmetry on 1 where lower wall is led to be overlapped.
In the present invention, the transmission unit 4 also preferably uses rectangular configuration, is more favorable for signal using rectangular configuration
Transmission connects receiving unit 3 by one end of rectangular configuration, and the other end connects radiating element 5.The transmission unit 4 equally may be used
It using symmetrical structure, i.e., is symmetrical set relative to the upper lower wall of rectangular waveguide 1, as shown in figure 3, putting transmission unit 4
In setting, the axis of symmetry is overlapped with the line of symmetry where lower wall in rectangular waveguide 1.
Further, also settable ripple on the transmission unit 4, the present embodiment is selected under rectangular configuration, in rectangle knot
Set up separately on the upper wall and lower wall of structure and set rectangle ripple struction, the purpose for increasing the ripple struction is to adjust the waveguide circular polarizer
Phase difference.But invention is not limited to this kind of rectangle ripple, the ripple of other shapes such as zigzag or waveform is equally applicable, and
It is not limited under rectangular configuration, other structures are equally applicable to add ripple struction, and the present invention is not limited thereof.
And the radiating element 5 can use parallelogram sturcutre in the present invention, which can be very good reality
The radiation of existing wave.The invention radiating element is not limited to parallelogram sturcutre, and other structures are equally applicable.
The working principle of novel waveguide circular polarizer of the invention is different from traditional partition circular polarizer, its work is former
Reason is: when passing through metal partion (metp) 2 from the orthogonal mode TE10 and TE01 of rectangular public port two, perpendicular to metal
The wave beam of the TE10 mould of partition 2 by etc. amplitudes assign to 2 both sides of metal partion (metp)；And it is parallel to the wave of the TE01 mould of metal partion (metp) 2
It when beam reaches metal partion (metp) 2, is collected first by the receiving unit 3 of metal partion (metp) 2, reaches radiating element 5 by transmission unit 4,
Then 2 both sides of metal partion (metp) are assigned to by amplitudes such as radiating elements 5, is parallel to the mode of metal partion (metp) 2 in this process
Wave beam variation is the wave beam perpendicular to the mode of metal partion (metp) 2.Reach radiating element 5 wave by etc. amplitudes assign to metal partion (metp) 2
It is propagated before backward and reaches two rectangular ports by waveguide transition 6,7 respectively.It is in square in the transmission unit 4 of metal partion (metp) 2
When having symmetrical ripple struction on the upper wall and lower wall of the transmission unit of shape structure, the purpose for adding ripple is to adjust the waveguide
The phase difference of circular polarizer.In the whole process, due to the biography during the multi-beam transmission for the TE01 mould for being parallel to metal partion (metp) 2
Defeated coefficient from it is vertical different with the transmission coefficient of wave beam of TE10 mould of metal partion (metp) 2, pass through optimization transmission unit ripple knot
The structure of structure and radiating element can produce one 90 degree of phase difference, so that left-handed or right-handed circular polarization letter be better achieved
Number.
As shown in figure 4, giving the public affairs for the novel waveguide circular polarizer that the present invention is obtained using HFSS Software simulation calculation
The beam phase of two modes TE10 and TE01 of port are poor altogether, in 8.7 to 9.5GHz frequency range, the wave of two modes
Beam phase difference is within the scope of 70 ° to 110 °, since the model has symmetrical structure, so the waveguide circular polarizer may be implemented
Left-handed and right hand signal transmit-receive sharing function.
As shown in figure 5, giving a left side for the novel waveguide circular polarizer that the present invention is obtained using HFSS Software simulation calculation
The schematic diagram of the insertion loss of right two ports, in 8.7 to 9.5GHz frequency range, the insertion loss of two ports in left and right
Value is below -30dB, illustrates that the circular polarizer has good isolation.
As shown in fig. 6, giving the public affairs for the novel waveguide circular polarizer that the present invention is obtained using HFSS Software simulation calculation
Altogether port TE01 mould return loss schematic diagram, in 8.7 to 9.6GHz frequency range, return loss be substantially below-
20dB, the index have reached acceptable range.
In conclusion the novel waveguide circular polarizer is in 8.7 to 9.5GHz frequency band, phase difference, insertion loss and
Return loss is all within the acceptable range.
Waveguide circular polarizer provided by the present invention realizes that the process of circular polarisation is different from conventional baffle circular polarizer,
The performance of good return loss, insertion loss and phase difference can be obtained.It is big that the circular polarizer can optimize space, can be more preferable
Left-handed or right-handed circular polarization signal is realized on ground, is had good isolation, can be widely used for radio astronomy and satellite
In the fields such as antenna.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode within the knowledge of a person skilled in the art can also be without departing from the purpose of the present invention
It makes a variety of changes.
Claims (6)
1. a kind of novel waveguide circular polarizer, including rectangular waveguide (1) and metal partion (metp) (2) and the identical wave of two structures
Lead transition (6,7), which is characterized in that the metal partion (metp) (2) is by sequentially connected receiving unit (3), transmission unit (4)
It is constituted with radiating element (5), and the width of metal partion (metp) (2) is equal with the inner edge of rectangular waveguide (1) length；The metal partion (metp)
(2) the formed symmetrical position of rectangular waveguide (1), and the rectangular public affairs of one end of metal partion (metp) (2) and rectangular waveguide (1) one end are placed in
Port contact altogether, is divided into the identical rectangular port of two structures for rectangular public port；Described two waveguide transitions (6,7)
It is connect respectively with two rectangular ports；Rectangular waveguide (1) is received two orthogonal wave beams and is turned by the metal partion (metp) (2)
It changes, by generating phase difference between reception wave beam and conversion gained wave beam, realizes left-handed or right-handed circular polarization signal；Wherein, institute
Receiving unit (3) or transmission unit (4) are stated using symmetrical structure.
2. novel waveguide circular polarizer according to claim 1, it is characterised in that: described two waveguide transitions (6,7)
Using hierarchic structure.
3. novel waveguide circular polarizer according to claim 1, it is characterised in that: the receiving unit (3) uses splayed
Structure.
4. novel waveguide circular polarizer according to claim 1, it is characterised in that: the transmission unit (4) uses rectangle knot
Structure.
5. novel waveguide circular polarizer according to claim 1, it is characterised in that: be provided with wave on the transmission unit (4)
Line.
6. novel waveguide circular polarizer according to claim 1, it is characterised in that: the radiating element (5) uses parallel four
Side shape structure.
Priority Applications (1)
| 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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| 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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| CN106025451A CN106025451A (en) | 2016-10-12 |
| CN106025451B true CN106025451B (en) | 2019-02-26 |
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Families Citing this family (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 |
| US11693166B2 (en) * | 2020-08-10 | 2023-07-04 | Lockheed Martin Corporation | Septumless OMT 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 |
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 |
|---|
| "X-band Compact Septum Polarizer Design";Weiye Zhong等;《microwave technology& computational electromagnetics》;20110525;第167-168页，附图1 |
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