CN105914475A - Ka-band single circularly-polarized antenna - Google Patents
Ka-band single circularly-polarized antenna Download PDFInfo
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- CN105914475A CN105914475A CN201610244360.5A CN201610244360A CN105914475A CN 105914475 A CN105914475 A CN 105914475A CN 201610244360 A CN201610244360 A CN 201610244360A CN 105914475 A CN105914475 A CN 105914475A
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- 239000000758 substrate Substances 0.000 claims abstract description 17
- 238000005516 engineering process Methods 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 abstract description 7
- 238000010168 coupling process Methods 0.000 abstract description 7
- 238000005859 coupling reaction Methods 0.000 abstract description 7
- 238000003780 insertion Methods 0.000 abstract description 4
- 230000037431 insertion Effects 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 12
- 230000010287 polarization Effects 0.000 description 8
- 230000005855 radiation Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000003491 array Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
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- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention proposes a Ka-band single circularly-polarized antenna, and the antenna is characterized in that the antenna comprises a circular polarizer, a dielectric substrate, a coupling cavity, and a power dividing feed network. The circular polarizer comprises three layers, wherein the above two layers are microstrip pasters printed on the dielectric plate, and the third layer is a low-frequency circularly-polarized back cavity. The circular polarizer carries out the coupling feed through the coupling cavity below the circular polarizer, and the power dividing feed network is located below the coupling cavity. The antenna provided by the invention enables a microstrip antenna and a feed waveguide to be integrated, and achieves a higher axial ratio, a greater standing wave bandwidth (>12%) and smaller insertion loss. Meanwhile, the cavity structure of the antenna employs a whole machine for machining and manufacturing. The antenna is simple in technology, and the whole structure is well tolerant to the error of the machining technology, and effectively reduces the production cost.
Description
Technical field
The invention belongs to wireless communication field, particularly relate to a kind of Ka wave band list circular polarized antenna.
Background technology
Antenna is requisite parts in wireless communication system, can convert the current to radio wave (being used for launching),
Radio wave also can be converted into electric current (being used for receiving).The implementation of antenna is varied, if produce according to it
The direction of far field electric field intensity divides, and mainly has linear polarized antenna and circular polarized antenna two kinds.And circular polarized antenna is according to electricity
Field vector can be divided into again left-hand circular polarization and right-handed circular polarization around the direction of rotation of propagation axis.Circular polarized antenna can effectively drop
Low transmitting antenna and reception antenna misalignment and the loss that produces, the multipath effect caused for reflection, diffraction also has very well
Ground inhibitory action.
In Ka wave band circular polarized antenna in recent years designs, Application No. 201110443445.3, entitled " a kind of Ka
Wave band leaky-pipe excitation circularly-polarizedhorn horn antenna " patent document, disclose leaky-pipe excitation Circular polarization horn
Antenna, including pyramid loudspeaker and feed waveguide, uses feed waveguide to crack to loudspeaker and feeds, wherein also have in feed waveguide
The adjustable column of a piece regulation impedance matching.
Application No. 201310447214.9, entitled " circularly-polarizedhorn horn antenna of a kind of Ka wave band cavity couple feed "
Patent document, disclose the circularly-polarizedhorn horn antenna of a kind of cavity coupling slot excitation, including feed R-joining, coupling is tiltedly
Seam, coupled chamber, two pyramid loudspeakers, feed waveguide.Coupled waveguide is used to crack to coupled chamber then at coupled cavity
Open double slit on body to feed to loudspeaker, wherein in coupled waveguide, also have the adjustable column of a regulation impedance matching.
Application No. 201510488814.9, the patent document of entitled " a kind of circular polarized antenna ", disclose communication,
A kind of circular polarized antenna of measurement and control area, this antenna includes electromagnetic horn and feeds rectangular waveguide, and electromagnetic horn body bag
Include radiating layer, transmission network network layers dielectric-slab and reflection cavity layer.Polarizer on transmission network network layers dielectric-slab is that inner curve is with outer
The hook-like configuration that curve encloses.
Application No. 201210378439.9, the patent literary composition of entitled " a kind of broadband miniaturization bispin circular polarized antenna "
Part discloses a kind of bispin circular polarized antenna, including upper strata radiation patch, lower floor's radiation patch, has the ground in coupling gap
Plate, feeding network, medium substrate etc..This antenna is fed by H-shaped gap medium couples, forms double tunning characteristic.
Application No. 201510212881.8, the patent document of entitled " circular polarized antenna and preparation method thereof " discloses
A kind of circular polarized antenna, including at least two for producing the antenna element of circular polarization radiation, each antenna element is located at installation
On base plate, and being uniformly distributed centered by the center of mounting base, antenna element is microstrip antenna, including stack gradually
Radiation patch, medium substrate and floor；Mounting base is used for reflection electromagnetic wave；Antenna element is with in described mounting base
The heart is as circular polarisation center, have corresponding unsymmetric structure according to each antenna element relative to position, described center.
The patent document of Application No. 200920133474.8 relate to a kind of circular polarized antenna, and the substrate of this antenna includes being situated between
Electricity scutum and radiating surface, radiating surface is arranged on the plate face of dielectric boards, and the centre of radiating surface is provided with two intersections
Gap, this gap can change the relation of electric field phase, it is achieved circular polarisation.
In the above-mentioned document retrieved, circular polarized antenna mainly has three kinds of implementations: (1) circularly-polarizedhorn horn antenna.
This form antenna has that impedance, axial ratio bandwidth are the widest, and feeding network Insertion Loss is low, and radiation efficiency is high, but its volume is relatively
Greatly, it is difficult to miniaturization.(2) circular polarization microstrip antenna of circumscribed circle polarization electric bridge.This form antenna 3dB axial ratio bandwidth is big
In 15%, the standing wave bandwidth less than 2 can more than 20%, but, circumscribed circle polarization electric bridge takes up room greatly, and feeder line is long, slotting
Damage big, be unfavorable for the Integrated design of antenna and feeding network.(3) corner cut circular polarization microstrip antenna.This form antenna structure
Simply, section is low, but the axle of antenna is less than with standing wave bandwidth, and typically 3%～4%, and its radiation efficiency is also
Relatively low.Circular polarized antenna these three implementation is respectively arranged with pluses and minuses, and industry problem demanding prompt solution is intended to realize transmission network
Network and integrated, the miniaturization of antenna, also ensure that wider bandwidth of operation simultaneously.
Existing Ka wave band circular polarized antenna is relatively low with the integrated level of feeding network, especially when building aerial array, and its feed
Network is complicated, Insertion Loss is high.And the circular polarized antenna realized with single layer microstrip antenna, its axle ratio and standing wave bandwidth relative narrower,
General 3%～about 4%.
Summary of the invention
For above-mentioned technical problem, it is an object of the invention to: microstrip antenna and feed waveguide are carried out Integrated design, it is achieved
Axle ratio and standing wave bandwidth wider (> 12%), and the Ka wave band list circular polarisation sky that feeding network is the simplest, Insertion Loss is less
Line, this antenna is easily achieved simultaneously, and processing cost is low.
For reaching above-mentioned purpose, the technical solution used in the present invention is: single circular polarized antenna of a kind of Ka wave band, including:
Circular polarizer, medium substrate, coupled cavity and merit divide feeding network.
Circular polarizer includes three layers, and upper two-layer is the microband paste being printed on medium substrate, and third layer is low frequency circular polarisation
Back of the body chamber；Circular polarizer is carried out couple feed by coupled cavity thereunder, divides feeding network for merit below coupled cavity.
The superiors of circular polarizer are printed on medium substrate upper surface, for undersized " ten " shaped offset of microstrip paster；Second
Layer is printed on the medium substrate back side, for large-sized " ten " shaped offset of microstrip paster.The size of microband paste is by work frequency
The electrical quantity of rate and medium substrate determines.The dimension scale of small size and large-sized microband paste is in working band scope
The interior change that can have little scope, as preferably, this ratio is 1:2 or about 1:2.
" ten " shaped offset of microstrip paster of circular polarizer uses printed circuit board technology manufacture.
" ten " shaped offset of microstrip paster of circular polarizer is preferably 16 × 16 structures；Coupled cavity is preferably 16 × 16 structures.
Merit divides feeding network to be one point of four centimeters of feeding network.
Single circular polarized antenna is formed by submatrix antenna combination, and the caliber size of submatrix antenna is 32 × 32mm.
Antenna array normal direction gain is maximum, and the gain in the range of frequency band 27.3～30.5GHz is both greater than 20dB；Stay
Bob is both less than-20dB in the range of frequency band 27.3～30.15GHz；Axle is less than in the range of frequency band 27.3～30.5GHz
In 2.2dB.
The method have the advantages that
1) the Ka wave band polarizer designed by the present invention is by crossing stacking various sizes of " ten " shaped offset of microstrip chip unit
Carry on the back chamber with one layer of circular polarisation and achieve the extension of bandwidth of operation, more than 12%.
2) the feed waveguide network of a point four of the present invention is the simplest.
3) traditional Ka wave band circular polarized antenna based on microstrip antenna is to antenna structure and the mismachining tolerance of printed circuit board
Very sensitive, processing cost is high.
And the cavity body structure of the Ka wave band list circular polarized antenna designed by the present invention uses complete machine processing technique to manufacture, technique
Simply, total has preferable fault-tolerance to the error of processing technique, and effectively reduces production cost.
Accompanying drawing explanation
Fig. 1 is 4 × 4 submatrix antenna structure exploded views of the embodiment of the present invention.
Fig. 2 is 30GHz 4 × 4 array pattern of the embodiment of the present invention.
Fig. 3 is the gain spectrum figure of 4 × 4 aerial arrays of the embodiment of the present invention.
Fig. 4 is the standing-wave ratio of 4 × 4 aerial arrays of the embodiment of the present invention.
Fig. 5 is the axle ratio of 4 × 4 aerial arrays of the embodiment of the present invention.
Wherein, 1 small size being " ten " shaped offset of microstrip paster；2 is medium substrate；3 is large-sized " ten " font
Microband paste；4 carry on the back chamber for low frequency circular polarisation；5 is coupled cavity；6 divide feeding network for merit.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, the present invention is made further with accompanying drawing below in conjunction with embodiment
Bright.
Fig. 1 show 4 × 4 submatrix antenna assumption diagrams: circular polarizer, coupled cavity 5 and merit divide feeding network 6；Entelechy
Changing device and have three layers, wherein the superiors are undersized " ten " shaped offset of microstrip pasters 1, for high frequency circular polarizer, print
In medium substrate 2 the superiors；Second layer circular polarizer is large-sized " ten " shaped offset of microstrip paster 3, for intermediate frequency entelechy
Change device, be printed on medium substrate 2 back side；Third layer circular polarizer is that low frequency circular polarisation carries on the back chamber 4.Below circular polarizer it is
Coupled cavity 5, namely the resonator cavity that cracks, circular polarizer is carried out couple feed by the resonator cavity that cracks, and is one below coupled cavity 5
The merit dividing four divides feed waveguide 6.
Small size microband paste 1 and large scale microband paste 3 ratio are 1:2 or about 1:2, and the size of microband paste is
Being determined by the electrical quantity of operating frequency and medium substrate, small size is working with the dimension scale of large-sized microband paste
The change of little scope can be had in frequency band range.
Single circular polarized antenna is formed by submatrix antenna combination, and the caliber size of submatrix aerial array is: 32 × 32mm；
This antenna array directional diagram when 30GHz as in figure 2 it is shown, the normal direction of 0 ° of respective antenna front of abscissa,
Maximum gain is 22dB；Fig. 3 show aerial array gain in the range of 27.3～30.5GHz, both greater than 20dB.
Standing-wave ratio (VSWR) as shown in Figure 4, is both less than-20dB in the range of frequency band 27.3～30.15GHz；Axle ratio
(AR) as it is shown in figure 5, be both less than 2.2dB in the range of frequency band 27.5～30.5GHz.
Above embodiment is only the technological thought that the present invention is described, it is impossible to limit protection scope of the present invention with this, every
The technological thought proposed according to the present invention, any change done on the basis of technical scheme, each fall within the present invention and protect model
Within enclosing.The technology that the present invention is not directed to all can be realized by existing technology.
Claims (8)
1. a Ka wave band list circular polarized antenna, it is characterised in that including: circular polarizer, medium substrate, coupled cavity
Feeding network is divided with merit.
Ka wave band list circular polarized antenna the most according to claim 1, it is characterised in that: described circular polarizer includes
Three layers, upper two-layer is the microband paste being printed on described medium substrate, and third layer is that low frequency circular polarisation carries on the back chamber；Described circle
Polarizer is carried out couple feed by described coupled cavity thereunder, divides feeding network for described merit below described coupled cavity.
Ka wave band list circular polarized antenna the most according to claim 2, it is characterised in that: described circular polarizer is
Upper strata is printed on described medium substrate upper surface, for undersized " ten " shaped offset of microstrip paster；The second layer is printed on described
The medium substrate back side, for large-sized " ten " shaped offset of microstrip paster.
Ka wave band list circular polarized antenna the most according to claim 3, it is characterised in that: " ten " of described circular polarizer
Shaped offset of microstrip paster uses printed circuit board technology manufacture.
Ka wave band list circular polarized antenna the most according to claim 3, it is characterised in that: " ten " of described circular polarizer
Shaped offset of microstrip paster is preferably 16 × 16 structures；Described coupled cavity is preferably 16 × 16 structures.
Ka wave band list circular polarized antenna the most according to claim 1, it is characterised in that: described merit divides feeding network
It it is one point of four centimeters of feeding network.
7. according to the Ka wave band list circular polarized antenna one of claim 1 to 6 Suo Shu, it is characterised in that: it is by submatrix
Antenna combination forms, and the caliber size of described submatrix antenna is 32 × 32mm.
Ka wave band list circular polarized antenna the most according to claim 1, it is characterised in that: its antenna array normal
Directive gain is maximum, and the gain in the range of frequency band 27.3～30.5GHz is both greater than 20dB；
Standing-wave ratio is both less than-20dB in the range of frequency band 27.3～30.15GHz；Axle ratio is in frequency band 27.3～30.5GHz scope
Interior both less than 2.2dB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610244360.5A CN105914475B (en) | 2016-04-19 | 2016-04-19 | A kind of Ka wave band list circular polarized antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610244360.5A CN105914475B (en) | 2016-04-19 | 2016-04-19 | A kind of Ka wave band list circular polarized antenna |
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| Publication Number | Publication Date |
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| CN105914475A true CN105914475A (en) | 2016-08-31 |
| CN105914475B CN105914475B (en) | 2019-05-03 |
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| CN201610244360.5A Expired - Fee Related CN105914475B (en) | 2016-04-19 | 2016-04-19 | A kind of Ka wave band list circular polarized antenna |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369905A (en) * | 2017-07-19 | 2017-11-21 | 电子科技大学 | A kind of broadband high-efficiency high-gain circular polarised array antenna |
| CN109037966A (en) * | 2018-06-13 | 2018-12-18 | 东南大学 | Using the end-fire multi-beam dual circularly polarized antenna battle array in the stepped gap of coated by dielectric |
| CN109672021A (en) * | 2019-02-27 | 2019-04-23 | 中国电子科技集团公司第五十四研究所 | A kind of back chamber slot-coupled paster antenna |
| CN109687103A (en) * | 2018-12-12 | 2019-04-26 | 中国电子科技集团公司第三十八研究所 | A kind of circular waveguide leaky antenna element and antenna array |
| CN110380200A (en) * | 2019-06-24 | 2019-10-25 | 东南大学 | A kind of plane pyramid aerial array of mixing function point feed |
| CN113193386A (en) * | 2021-04-29 | 2021-07-30 | 中国电子科技集团公司第三十八研究所 | High-gain dual-band circularly polarized duplex antenna unit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0295003A2 (en) * | 1987-06-09 | 1988-12-14 | THORN EMI plc | Antenna |
| CN102255138A (en) * | 2011-03-28 | 2011-11-23 | 李峰 | Circularly polarized waveguide flat plate array antenna |
-
2016
- 2016-04-19 CN CN201610244360.5A patent/CN105914475B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0295003A2 (en) * | 1987-06-09 | 1988-12-14 | THORN EMI plc | Antenna |
| CN102255138A (en) * | 2011-03-28 | 2011-11-23 | 李峰 | Circularly polarized waveguide flat plate array antenna |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369905A (en) * | 2017-07-19 | 2017-11-21 | 电子科技大学 | A kind of broadband high-efficiency high-gain circular polarised array antenna |
| CN107369905B (en) * | 2017-07-19 | 2020-07-21 | 电子科技大学 | Broadband high-efficiency high-gain circularly polarized array antenna |
| CN109037966A (en) * | 2018-06-13 | 2018-12-18 | 东南大学 | Using the end-fire multi-beam dual circularly polarized antenna battle array in the stepped gap of coated by dielectric |
| CN109037966B (en) * | 2018-06-13 | 2020-07-31 | 东南大学 | End-fire multi-beam double-circular-polarization antenna array adopting medium-loaded step-type gap |
| CN109687103A (en) * | 2018-12-12 | 2019-04-26 | 中国电子科技集团公司第三十八研究所 | A kind of circular waveguide leaky antenna element and antenna array |
| CN109687103B (en) * | 2018-12-12 | 2020-07-24 | 中国电子科技集团公司第三十八研究所 | Circularly polarized waveguide slot antenna unit and antenna array |
| CN109672021A (en) * | 2019-02-27 | 2019-04-23 | 中国电子科技集团公司第五十四研究所 | A kind of back chamber slot-coupled paster antenna |
| CN109672021B (en) * | 2019-02-27 | 2024-04-09 | 中国电子科技集团公司第五十四研究所 | Back cavity gap coupling patch antenna |
| CN110380200A (en) * | 2019-06-24 | 2019-10-25 | 东南大学 | A kind of plane pyramid aerial array of mixing function point feed |
| CN113193386A (en) * | 2021-04-29 | 2021-07-30 | 中国电子科技集团公司第三十八研究所 | High-gain dual-band circularly polarized duplex antenna unit |
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| CN105914475B (en) | 2019-05-03 |
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Address after: 211100 No.9, mozhou East Road, Nanjing, Jiangsu Province Patentee after: Nanjing Xinghang Communication Technology Co.,Ltd. Address before: 211100 No.9, mozhou East Road, Nanjing, Jiangsu Province Patentee before: NANJING CLEANWAVE COMMUNICATION TECHNOLOGY Co.,Ltd. |
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