CN205680792U - A kind of pyramidal horn antenna - Google Patents
A kind of pyramidal horn antenna Download PDFInfo
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- CN205680792U CN205680792U CN201620300140.5U CN201620300140U CN205680792U CN 205680792 U CN205680792 U CN 205680792U CN 201620300140 U CN201620300140 U CN 201620300140U CN 205680792 U CN205680792 U CN 205680792U
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- waveguide
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- pyramid loudspeaker
- antenna
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- 230000001131 transforming effect Effects 0.000 claims abstract description 18
- 230000009466 transformation Effects 0.000 claims abstract description 6
- 239000004020 conductor Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a kind of pyramidal horn antenna.It is made up of pyramid loudspeaker, waveguide impedance transforming section and waveguide coaxial connecter section；Pyramid loudspeaker is positioned at the top, and waveguide coaxial connecter section is positioned at bottom, and waveguide impedance transforming section is between the waveguide entrance and the waveguide mouth of pyramid loudspeaker of waveguide coaxial connecter section；Pyramid loudspeaker is square opening pyramid loudspeaker form, and its waveguide feed side is standard rectangular waveguide form；Waveguide impedance transforming section realizes the impedance transformation between the waveguide entrance of waveguide coaxial connecter section and the waveguide mouth of pyramid loudspeaker.This utility model loss is low, and radiation efficiency is high；Can be as the radiating element of low sidelobe antenna array, whole antenna structure is simple, compact, can achieve the integrated design of antenna and network simultaneously.
Description
Technical field
This utility model relates to a kind of pyramidal horn antenna in radar, the communications field, it is adaptable to require high effective antenna
Communication, in TT&C system.
Background technology
At present in radar, communication system, it is desirable to antenna has the electrical characteristics such as high-gain, high efficiency, Sidelobe, it is achieved
The antenna of above-mentioned performance mainly has following several antenna form, but is respectively arranged with pluses and minuses.
1, Waveguide slot antenna: this form antenna is to crack at waveguide broadside or narrow limit, generally has row ripple, standing wave two
Kind of array format, but the gain in radiating element gap is relatively low, the most only about 7dB, due to for series feed form, in bandwidth
Occur that frequency sweeps phenomenon, along with increasing of operating frequency, it is desirable to machining accuracy is the highest, need to be by higher welding procedure processing system
Making, yield rate is relatively low, causes relatively costly.
2, micro-strip paster antenna, this antenna form have profile low, can integrated active device, radiating element and net can be realized
Network integrated design, but the dielectric loss of antenna is relatively big, and there is leaky wave effect, antenna element gain is low, feeding network damages
Consumption is big, does not utilize and realizes high-gain aerial design.
3, doublet antenna, the antenna of this form generally occurs with chamber element antenna form, can be as reflector antenna
Feed uses, and antenna gain can realize about 10dB, and the processing method in a period of time generally uses aluminium, copper material or applies by printed board
Lithography realizes.But this unit form realizes array antenna design, need external synthesis network, therefore road each to feeder network
Coherence request is higher, and when often Antenna Operation frequency range is relatively low, impact is little, but when frequency is higher, width, phase error are relatively big, unfavorable
Realization in array.
Utility model content
The technical problems to be solved in the utility model is: avoid the weak point in above-mentioned background technology to provide a kind of
The pyramidal horn antenna of air coaxial feed so that it is be lost low, radiation efficiency is high, can be as the radiation list of low sidelobe antenna array
Unit, compact conformation.
In order to solve above-mentioned technical problem, technical solution adopted in the utility model is:
A kind of pyramidal horn antenna, is made up of pyramid loudspeaker, waveguide impedance transforming section and waveguide coaxial connecter section；Pyramid loudspeaker
Be positioned at the top, waveguide coaxial connecter section is positioned at bottom, and waveguide impedance transforming section is positioned at the waveguide of waveguide coaxial connecter section
Between the waveguide mouth of entrance and pyramid loudspeaker；Pyramid loudspeaker is square opening pyramid loudspeaker form, and its waveguide feed side is standard rectangular
Waveguide form；Waveguide impedance transforming section realizes the resistance between the waveguide entrance of waveguide coaxial connecter section and the waveguide mouth of pyramid loudspeaker
Resistance changes.
The waveguide entrance of waveguide coaxial connecter section is positioned at the top of waveguide coaxial connecter section, and this waveguide uses flat waveguide mouth
Form；Coaxial inner conductor is square structure, is positioned at broadside center, adds waveguide along the feedback of Narrow Wall of Waveguide edge direction；Coaxial termination is short
Section is the extension to the other end of the coaxial feed end, in 90 ° of bending structures；Coaxial impedance transforming section is positioned at coaxle input end and ripple
Between guide arm, rectangular waveguide cavity is positioned at the bottom of waveguide coaxial connecter section, and in coaxial cavity, filled media is air.
The narrow limit of rectangular waveguide cavity is smaller in size than corresponding frequencies standard waveguide narrow limit size.
Beneficial effect acquired by this utility model:
This utility model is made up of pyramid loudspeaker, waveguide impedance transforming section and waveguide coaxial connecter, can produce in broadband
Raw high-quality directional beam, radiation efficiency is more than 92%, and feeder loss is only 0.01dB.Being lost low, radiation efficiency is high.
This utility model can be as the radiating element of low sidelobe antenna array, and whole antenna structure is simple, compact, simultaneously can
To achieve the integrated design of antenna and network.This pyramidal horn antenna compares with tradition pyramidal horn antenna, has bigger
Feed space, the convenient arrangement with feeding network, the feeder line structure of self-supporting simultaneously, it is possible to achieve feeding network is single with radiation
The integrated design of unit, and realize the high-gain of aerial array, Sidelobe, high efficiency.
The waveguide entrance of waveguide coaxial connecter section is positioned at the top of waveguide coaxial connecter section, and this waveguide uses flat waveguide mouth
Form, it is achieved bigger feeding network space, facilitate network cabling；Coaxial inner conductor is square structure, is suitable for use with numerical control
Processing technique is processed；Coaxial termination shorted segment is 90 ° of bending structures, can reduce the cabling space of feeder line, inner conductor terminal with
Cavity inner wall is shorted contacts, and such inner wire can realize self-supporting, beneficially network extension, reduces the loss of feeder line；Coaxial resistance
The resistance section of changing is positioned between coaxle input end and waveguide arm, the method using regulation square coaxial outer conductor size, changes this
The feed line impedance at place, closely realizes the impedance matching of coaxle input end；Rectangular waveguide cavity is positioned at waveguide coaxial connecter section
Bottom, it is achieved the directional transmissions of waveguide signal.
With detailed description of the invention, this utility model is described in further details below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is three dimensional structure schematic diagram of the present utility model；
Fig. 2 is the structural representation of coaxial transformation segment in this utility model.
Detailed description of the invention
Fig. 1 is three dimensional structure schematic diagram of the present utility model, gives the relative position relation between each parts.As schemed
Show that a kind of pyramidal horn antenna is made up of pyramid loudspeaker 1, waveguide impedance transforming section 2 and waveguide coaxial connecter section 3；Pyramid loudspeaker
1 be positioned at the top, waveguide coaxial connecter section 3 is positioned at bottom, and waveguide impedance transforming section 2 is positioned at waveguide coaxial connecter section 3
Between the waveguide mouth of waveguide entrance 6 and pyramid loudspeaker 1；Pyramid loudspeaker 1 is square opening pyramid loudspeaker form, and its waveguide feed side is mark
Quasi-retangular wave leads form；Waveguide impedance transforming section 2 realizes the waveguide entrance 6 of waveguide coaxial connecter section 3 and the waveguide of pyramid loudspeaker 1
Impedance transformation between Kou.This utility model loss is low, and radiation efficiency is high；Can as the radiating element of low sidelobe antenna array,
Whole antenna structure is simple, compact, can achieve the integrated design of antenna and network simultaneously.
Fig. 2 is the structural representation of coaxial transformation segment in this utility model.As it can be seen, the ripple of waveguide coaxial connecter section 3
Introducing port 6 is positioned at the top of waveguide coaxial connecter section 3, and this waveguide uses the form of flat waveguide mouth, it is achieved bigger transmission network
Network space, facilitates network cabling；Coaxial inner conductor 4 is square structure, is suitable for use with numerical control processing technology and processes, is positioned at broadside
Center, adds waveguide along the feedback of Narrow Wall of Waveguide edge direction；Coaxial termination shorted segment 5 is the extension to the other end of the coaxial feed end, in 90 °
Bending structure, can reduce the cabling space of feeder line, and inner conductor terminal and cavity inner wall are shorted contacts, and such inner wire can realize
Self-supporting, beneficially network extension, reduces the loss of feeder line；Coaxial impedance transforming section 7 between coaxle input end and waveguide arm,
The method using regulation square coaxial outer conductor size, changes feed line impedance herein, closely realizes the resistance of coaxle input end
Anti-coupling；Rectangular waveguide cavity 8 is positioned at the bottom of waveguide coaxial connecter section 3, it is achieved the directional transmissions of waveguide signal；Coaxial cavity
In body, filled media is air.
The narrow limit of rectangular waveguide cavity 8 is smaller in size than corresponding frequencies standard waveguide narrow limit size.
Utility model works principle is as follows: when transmitting a signal, and transmitter launches signal by coaxial feeder, is input to
Waveguide coaxial connecter, via waveguide impedance transforming section, and is radiated free space by pyramid loudspeaker；The reception of antenna and transmitting
For reciprocity process, external signal, by through pyramid loudspeaker, waveguide impedance transforming section, enters eventually into waveguide coaxial connecter, via same
Axle exports external receiver.
Claims (3)
1. a pyramidal horn antenna, it is characterised in that: turned by pyramid loudspeaker (1), waveguide impedance transforming section (2) and Waveguide coaxial
The section of changing (3) forms；Pyramid loudspeaker (1) is positioned at the top, and waveguide coaxial connecter section (3) is positioned at bottom, waveguide impedance transforming section
(2) it is positioned between the waveguide entrance (6) of waveguide coaxial connecter section (3) and the waveguide mouth of pyramid loudspeaker (1)；Pyramid loudspeaker (1) is
Square opening pyramid loudspeaker form, its waveguide feed side is standard rectangular waveguide form；Waveguide impedance transforming section (2) realizes Waveguide coaxial
Impedance transformation between waveguide entrance (6) and the waveguide mouth of pyramid loudspeaker (1) of transformation segment (3).
Pyramidal horn antenna the most according to claim 1, it is characterised in that: the waveguide entrance of waveguide coaxial connecter section (3)
(6) being positioned at the top of waveguide coaxial connecter section (3), this waveguide uses the form of flat waveguide mouth；Coaxial inner conductor (4) is square
Structure, is positioned at broadside center, adds waveguide along the feedback of Narrow Wall of Waveguide edge direction；Coaxial termination shorted segment (5) is that coaxial feed end is to separately
The extension of one end, in 90 ° of bending structures；Coaxial impedance transforming section (7) between coaxle input end and waveguide arm, rectangular waveguide
Cavity (8) is positioned at the bottom of waveguide coaxial connecter section (3), and in coaxial cavity, filled media is air.
Pyramidal horn antenna the most according to claim 2, it is characterised in that: the narrow limit size of rectangular waveguide cavity (8) is little
In corresponding frequencies standard waveguide narrow limit size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620300140.5U CN205680792U (en) | 2016-04-12 | 2016-04-12 | A kind of pyramidal horn antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620300140.5U CN205680792U (en) | 2016-04-12 | 2016-04-12 | A kind of pyramidal horn antenna |
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| Publication Number | Publication Date |
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| CN205680792U true CN205680792U (en) | 2016-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620300140.5U Expired - Fee Related CN205680792U (en) | 2016-04-12 | 2016-04-12 | A kind of pyramidal horn antenna |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654590A (en) * | 2016-12-29 | 2017-05-10 | 中国科学院国家空间科学中心 | Terahertz antenna for realizing short baseline measurement |
| CN107782981A (en) * | 2017-10-25 | 2018-03-09 | 四川莱源科技有限公司 | The system for improving free-space Method power of test |
| CN110034405A (en) * | 2019-04-30 | 2019-07-19 | 江苏肯立科技股份有限公司 | A kind of C-band broad beam pyramidal horn antenna |
| CN110289496A (en) * | 2019-06-03 | 2019-09-27 | 深圳大学 | A kind of waveguide horns and its manufacturing method |
-
2016
- 2016-04-12 CN CN201620300140.5U patent/CN205680792U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654590A (en) * | 2016-12-29 | 2017-05-10 | 中国科学院国家空间科学中心 | Terahertz antenna for realizing short baseline measurement |
| CN106654590B (en) * | 2016-12-29 | 2019-07-09 | 中国科学院国家空间科学中心 | A kind of Terahertz antenna for realizing short base line measurement |
| CN107782981A (en) * | 2017-10-25 | 2018-03-09 | 四川莱源科技有限公司 | The system for improving free-space Method power of test |
| CN110034405A (en) * | 2019-04-30 | 2019-07-19 | 江苏肯立科技股份有限公司 | A kind of C-band broad beam pyramidal horn antenna |
| CN110289496A (en) * | 2019-06-03 | 2019-09-27 | 深圳大学 | A kind of waveguide horns and its manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161109 |