CN110380161A - A kind of OMT of the microwave frequency band of coaxial waveguide structure - Google Patents
A kind of OMT of the microwave frequency band of coaxial waveguide structure Download PDFInfo
- Publication number
- CN110380161A CN110380161A CN201910668514.7A CN201910668514A CN110380161A CN 110380161 A CN110380161 A CN 110380161A CN 201910668514 A CN201910668514 A CN 201910668514A CN 110380161 A CN110380161 A CN 110380161A
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- Prior art keywords
- waveguide
- metal
- omt
- tube
- mouth
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- 239000002184 metal Substances 0.000 claims abstract description 67
- 229910052751 metal Inorganic materials 0.000 claims abstract description 67
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000010287 polarization Effects 0.000 claims description 6
- 230000000644 propagated effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
- H01P1/161—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion sustaining two independent orthogonal modes, e.g. orthomode transducer
Abstract
The present invention discloses a kind of OMT of the microwave frequency band of coaxial waveguide structure, it is characterized in that, circular waveguide tube and central metal waveguide including coaxial arrangement, the central metal waveguide is located in the circular waveguide tube, the first orthogonal standard rectangular waveguide mouth is equipped in the side of the circular waveguide tube, second standard rectangular waveguide mouth, in the circular waveguide tube be equipped with respectively with the first standard rectangular waveguide mouth, parallel several first metal needles of the second standard rectangular waveguide mouth, several second metal needles, one end of each first metal needle and each second metal needle is connect with the inner wall of the circular waveguide tube, the other end is connect with the central metal waveguide.OMT provided by the invention uses the design method of coaxial waveguide, and outer circle realizes the OMT conversion of low-frequency range, and inner circle realizes the energy transmission of high band, and the two is concentric, and can ensure that by this structure can independently carry out between the transmission of two frequency ranges.
Description
Technical field
The present invention relates to microwave antenna art field more particularly to a kind of OMT of the microwave frequency band of coaxial waveguide structure.
Background technique
Orthomode transducer is also referred to as bimodulus converter or orthogonal mode (OMT), be in multi-polarization antenna system one it is important
Component part, be quite widely applied for many years.Increase the communication of antenna in engineering using orthomode transducer
Ability both can increase channel by different and mutually isolated using two polarization modes simultaneously channels under same frequency
Total amount can also solve the problems, such as channeling by the way that orthomode transducer to be connect with filter.
OMT can be realized simultaneously the transmitting and reception for the two paths of signals that vertically and horizontally polarizes.Common OMT can be divided into point
ODU is connected by flexible waveguide from formula OMT and straight two class of button OMT, separate type OMT, and straight button OMT then can be directly buckled in
On ODU, for saving the cost of flexible waveguide.Traditional separate type OMT is come out by overall processing, and structure type is simple, directly
For button OMT due to needing to be connected directly with ODU, structure is complex.But the OMT of either which kind of form, at present all only into
The energy transmission of the single frequency range of row, there are biggish application limitations.
Summary of the invention
Aiming at the problems existing in the prior art, simple, at low cost, energy reality that the purpose of the present invention is to provide a kind of structures
The OMT of existing two band energies transmission.
To achieve the above objectives, the present invention adopts the following technical scheme that.
A kind of OMT of the microwave frequency band of coaxial waveguide structure, which is characterized in that the circular waveguide tube including coaxial arrangement is in
Heart metal waveguide, the central metal waveguide are located in the circular waveguide tube, are equipped in the side of the circular waveguide tube orthogonal
First standard rectangular waveguide mouth, the second standard rectangular waveguide mouth, in the circular waveguide tube be equipped with respectively with first standard
Parallel several first metal needles of rectangular waveguide mouth, the second standard rectangular waveguide mouth, several second metal needles, each described the
One end of one metal needle and each second metal needle connect with the inner wall of the circular waveguide tube, the other end and the central metal
Waveguide connection.
It is further preferred that the circular waveguide tube, the first standard rectangular waveguide mouth, the second standard rectangular waveguide
The OMT of mouth, first metal needle composition low-frequency range, first metal needle and second metal needle mainly do low-frequency range
Polarization energy separation and transmission；The central metal waveguide prevailing transmission high band energy.
It is further preferred that the central metal waveguide is metal tube.
It is further preferred that circle wave described in the first standard rectangular waveguide mouth and the second standard rectangular waveguide opening's edge
Setting before and after the axial direction of conduit.
It is further preferred that each first metal needle is parallel to each other, each second metal needle is parallel to each other.
It is further preferred that first metal needle, second metal needle are separately positioned on respective standard rectangular waveguide
The rear of mouth.
It is further preferred that being equipped with several adjusting screws in the cavity of the circular waveguide tube.
It is further preferred that the main mould that the circular waveguide tube is propagated in working frequency range is TE11 mould.
It is further preferred that the working frequency range of the OMT is 14.4GHz~15.35GHz, central metal waveguide is
80GHz circular waveguide.
The beneficial effects of the present invention are:
OMT provided by the invention uses the design method of coaxial waveguide, realizes that the OMT of low-frequency range turns using outer circular waveguide tube
Change, the energy transmission of high band is realized using inner circle central metal waveguide, the two is concentric, and structure is simple, manufacturing cost is low；And
And it can ensure that by this structure and can independently be carried out between the transmission of two frequency ranges.
Detailed description of the invention
Fig. 1 show the structural schematic diagram of coaxial waveguide structure OMT provided by the invention.
Fig. 2 show the sectional view of coaxial waveguide structure OMT provided by the invention.
Fig. 3 show coaxial waveguide structure OMT provided by the invention in the S parameter performance of 15GHz.
Fig. 4 show coaxial waveguide structure OMT provided by the invention in the isolation performance of 15GHz.
Description of symbols:
1: circular waveguide tube, 2: the first standard rectangular waveguide mouths, 3: the second standard rectangular waveguide mouths, 4: central metal waveguide,
5: the first metal needles, the 5-1: the second metal needle, 6: adjusting screw.
Specific embodiment
In the description of the present invention, it should be noted that " transverse direction ", " vertical if any term " center " for the noun of locality
To ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top",
The indicating positions such as "bottom", "inner", "outside", " clockwise ", " counterclockwise " and positional relationship are orientation based on the figure or position
Relationship is set, the narration present invention is merely for convenience of and simplifies description, rather than the device or element of indication or suggestion meaning are necessary
It constructs and operates with specific orientation, with particular orientation, should not be understood as limiting specific protection scope of the invention.
In addition, being used for description purposes only if any term " first ", " second ", it is not understood to indicate or imply relatively heavy
The property wanted or the quantity for implicitly indicating technical characteristic." first " is defined as a result, " second " feature can be expressed or implicit include
One or more this feature, in the present description, " at least " are meant that one or more, unless otherwise clearly having
The restriction of body.
In the present invention, except as otherwise clear stipulaties and restriction, should make if any term " assembling ", " connected ", " connection " term
Broad sense goes to understand, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It is also possible to mechanical connect
It connects；It can be directly connected, be also possible to be connected by intermediary, can be and be connected inside two elements.For ability
For the those of ordinary skill of domain, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In invention, unless otherwise specified and limited, fisrt feature second feature "upper" or "lower" may include
First and second features directly contact, also may include fisrt feature and second feature be not direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " under " and " above " include fisrt feature
Right above two features and oblique upper, or be only to indicate that first feature horizontal height is higher than the height of second feature.Fisrt feature
Second feature " on ", " under " and " below " include that fisrt feature is directly under or diagonally below the second feature, or only table
Show first feature horizontal height lower than second feature.
Below with reference to the attached drawing of specification, a specific embodiment of the invention is further described, is made of the invention
Technical solution and its benefits are clearer.It describes embodiment below with reference to attached drawing to be exemplary, it is intended to solve
The present invention is released, and is not considered as limiting the invention.
Additional aspect and advantage of the invention will become obviously in following description section, or practice through the invention
Recognize.
As shown in Figure 1 and Figure 2, a kind of OMT of the microwave frequency band of coaxial waveguide structure, comprising: the circle wave including coaxial arrangement
Conduit 1 and central metal waveguide 4, the central metal waveguide 4 is located in the circular waveguide tube 1, in the side of the circular waveguide tube 1
Portion is equipped with the first orthogonal standard rectangular waveguide mouth 2, the second standard rectangular waveguide mouth 3, and difference is equipped in the circular waveguide tube 1
Several first metal needles 5 parallel with the first standard rectangular waveguide mouth 2, the second standard rectangular waveguide mouth 3, Ruo Gan
One end of two metal needle 5-1, each first metal needle 5 and each second metal needle 5-1 and the inner wall of the circular waveguide tube 1
Connection, the other end are connect with the central metal waveguide 4.
Wherein, the circular waveguide tube 1, the first standard rectangular waveguide mouth 2, the second standard rectangular waveguide mouth 3, institute
The OMT of the first metal needle 5 composition low-frequency range is stated, first metal needle 5 and the second metal needle 5-1 mainly do low-frequency range
Polarization energy separation and transmission；The central metal waveguide 4 is metal tube, prevailing transmission high band energy.
The axial direction of the first standard rectangular waveguide mouth 2 and the second standard rectangular waveguide mouth 3 along the circular waveguide tube 1
Setting before and after direction, major function is to introduce signal into the cavity of circular waveguide tube 1 or transmit out from cavity.
Each first metal needle 5 is parallel to each other, and each second metal needle 5-1 is parallel to each other, and first metal
Needle 5, the second metal needle 5-1 are separately positioned on the rear of respective standard rectangular waveguide mouth, in order to reflect signal.
Preferably, several adjusting screws 6 are additionally provided with, in the cavity of the circular waveguide tube 1 for adjusting standing wave.
Further, the main mould that the circular waveguide tube 1 is propagated in working frequency range is TE11 mould.
When specific works, the electric signal for being achieved in that low-frequency range of OMT is respectively from the first standard rectangular waveguide mouth 2,
Two standard rectangular waveguide mouths 3 are passed to respectively, and two signals are quadratures at this time, are passed to from the first standard rectangular waveguide mouth 2
Signal through the second metal needle 5-1 short circuit, does polarization energy purification through backward 5 short-circuiting reflection of the first metal needle, onwards transmission
Afterwards, further along to transmission.The second backward metal needle 5-1 short-circuiting reflection of the signal being passed to from the second standard rectangular waveguide mouth 3, to
Preceding transmission.Intermediate central metal waveguide 4 will not change the polarization mode of signal.
In conjunction with shown in Fig. 3, Fig. 4, a kind of OMT of the microwave frequency band of coaxial waveguide structure provided by the invention is applied to
When 14.4GHz~15.35GHz, central metal waveguide are 80GHz circular waveguide, the reflection of two standard rectangular waveguide mouths of low-frequency range
Coefficient | S | all satisfaction -21dB hereinafter, two standard rectangular waveguide mouths isolation satisfaction -54dB or less.
From the foregoing description of structures and principles it should be understood by those skilled in the art that, the present invention not office
It is limited to above-mentioned specific embodiment, this hair is all fallen within using the improvement of techniques well known and substitution on the basis of the present invention
Bright protection scope, protection scope of the present invention should limit it by each claim and its equivalent.In specific embodiment
The part not illustrated is the prior art or common knowledge.
Claims (9)
1. a kind of OMT of the microwave frequency band of coaxial waveguide structure, which is characterized in that circular waveguide tube and center including coaxial arrangement
Metal waveguide, the central metal waveguide are located in the circular waveguide tube, are equipped with orthogonal the in the side of the circular waveguide tube
One standard rectangular waveguide mouth, the second standard rectangular waveguide mouth, in the circular waveguide tube be equipped with respectively with the first standard square
Parallel several first metal needles of shape waveguide mouth, the second standard rectangular waveguide mouth, several second metal needles, each described first
One end of metal needle and each second metal needle connect with the inner wall of the circular waveguide tube, the other end and the central metal wave
Lead connection.
2. OMT according to claim 1, which is characterized in that the circular waveguide tube, the first standard rectangular waveguide mouth,
The OMT of the second standard rectangular waveguide mouth, first metal needle composition low-frequency range, first metal needle and described second
Metal needle is mainly the polarization energy separation and transmission for doing low-frequency range；The central metal waveguide prevailing transmission high band energy.
3. OMT according to claim 1, which is characterized in that the central metal waveguide is metal tube.
4. OMT according to claim 1, which is characterized in that the first standard rectangular waveguide mouth and second standard
Setting before and after the axial direction of circular waveguide tube described in rectangular waveguide opening's edge.
5. OMT according to claim 1, which is characterized in that each first metal needle is parallel to each other, each second gold medal
Belong to needle to be parallel to each other.
6. OMT according to claim 1, which is characterized in that first metal needle, second metal needle are respectively set
At the rear of respective standard rectangular waveguide mouth.
7. OMT according to claim 1, which is characterized in that be equipped with several adjusting spiral shells in the cavity of the circular waveguide tube
Nail.
8. OMT according to claim 1, which is characterized in that the main mould that the circular waveguide tube is propagated in working frequency range is
TE11 mould.
9. OMT according to claim 1, which is characterized in that its working frequency range is 14.4GHz~15.35GHz, center
Metal waveguide is 80GHz circular waveguide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910668514.7A CN110380161A (en) | 2019-07-23 | 2019-07-23 | A kind of OMT of the microwave frequency band of coaxial waveguide structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910668514.7A CN110380161A (en) | 2019-07-23 | 2019-07-23 | A kind of OMT of the microwave frequency band of coaxial waveguide structure |
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| Publication Number | Publication Date |
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| CN110380161A true CN110380161A (en) | 2019-10-25 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910668514.7A Pending CN110380161A (en) | 2019-07-23 | 2019-07-23 | A kind of OMT of the microwave frequency band of coaxial waveguide structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114188688A (en) * | 2021-11-30 | 2022-03-15 | 中国电子科技集团公司第五十四研究所 | Miniaturized coaxial waveguide orthogonal mode coupler |
| CN116544667A (en) * | 2023-03-13 | 2023-08-04 | 西安电子科技大学 | Multichannel feed source structure and antenna system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020097111A1 (en) * | 2001-01-24 | 2002-07-25 | Holden Richard H. | Radio frequency antenna feed structures |
| EP2214251A1 (en) * | 2009-02-02 | 2010-08-04 | Centre National D'etudes Spatiales | A waveguide orthomode transducer |
| US20110037534A1 (en) * | 2008-04-04 | 2011-02-17 | Espino Cynthia P | Ortho-Mode Transducer With TEM Probe for Coaxial Waveguide |
| CN202523816U (en) * | 2012-04-24 | 2012-11-07 | 江苏贝孚德通讯科技股份有限公司 | Microwave orthogonal mode converter |
| CN104934672A (en) * | 2015-06-25 | 2015-09-23 | 常州吉赫射频电子技术有限公司 | Novel broadband coaxial waveguide orthomode coupler based on turnstile structure |
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| CN107910650A (en) * | 2017-11-08 | 2018-04-13 | 江苏贝孚德通讯科技股份有限公司 | A kind of dual-band antenna feed system and dual-band antenna |
| CN108123200A (en) * | 2017-12-18 | 2018-06-05 | 中国电子科技集团公司第五十四研究所 | A kind of multifrequency feed network based on coaxial turnsile coupler |
| CN108134182A (en) * | 2017-12-05 | 2018-06-08 | 安徽四创电子股份有限公司 | A kind of Double frequency feed source loudspeaker including becket |
| CN210040474U (en) * | 2019-07-23 | 2020-02-07 | 广东盛路通信科技股份有限公司 | Microwave frequency band OMT with coaxial waveguide structure |
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2019
- 2019-07-23 CN CN201910668514.7A patent/CN110380161A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020097111A1 (en) * | 2001-01-24 | 2002-07-25 | Holden Richard H. | Radio frequency antenna feed structures |
| US20110037534A1 (en) * | 2008-04-04 | 2011-02-17 | Espino Cynthia P | Ortho-Mode Transducer With TEM Probe for Coaxial Waveguide |
| EP2214251A1 (en) * | 2009-02-02 | 2010-08-04 | Centre National D'etudes Spatiales | A waveguide orthomode transducer |
| CN202523816U (en) * | 2012-04-24 | 2012-11-07 | 江苏贝孚德通讯科技股份有限公司 | Microwave orthogonal mode converter |
| CN104934672A (en) * | 2015-06-25 | 2015-09-23 | 常州吉赫射频电子技术有限公司 | Novel broadband coaxial waveguide orthomode coupler based on turnstile structure |
| US20170170570A1 (en) * | 2015-12-11 | 2017-06-15 | Thales | Compact bipolarization excitation assembly for a radiating antenna element and compact array comprising at least four compact excitation assemblies |
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| CN210040474U (en) * | 2019-07-23 | 2020-02-07 | 广东盛路通信科技股份有限公司 | Microwave frequency band OMT with coaxial waveguide structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114188688A (en) * | 2021-11-30 | 2022-03-15 | 中国电子科技集团公司第五十四研究所 | Miniaturized coaxial waveguide orthogonal mode coupler |
| CN116544667A (en) * | 2023-03-13 | 2023-08-04 | 西安电子科技大学 | Multichannel feed source structure and antenna system |
| CN116544667B (en) * | 2023-03-13 | 2023-09-22 | 西安电子科技大学 | Multichannel feed source structure and antenna system |
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