CN105914475B - A kind of Ka wave band list circular polarized antenna - Google Patents
A kind of Ka wave band list circular polarized antenna Download PDFInfo
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- CN105914475B CN105914475B CN201610244360.5A CN201610244360A CN105914475B CN 105914475 B CN105914475 B CN 105914475B CN 201610244360 A CN201610244360 A CN 201610244360A CN 105914475 B CN105914475 B CN 105914475B
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- polarized antenna
- wave band
- coupler
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- 239000000758 substrate Substances 0.000 claims abstract description 17
- 238000005516 engineering process Methods 0.000 claims abstract description 8
- 230000009286 beneficial effect Effects 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 6
- 238000003780 insertion Methods 0.000 abstract description 5
- 230000037431 insertion Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 17
- 230000010287 polarization Effects 0.000 description 6
- 230000005855 radiation Effects 0.000 description 6
- 238000003491 array Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005304 joining Methods 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
- 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
Landscapes
- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention proposes a kind of Ka wave band list circular polarized antenna characterized by comprising circular polarizer, medium substrate, coupler and function divide feeding network.Circular polarizer includes three layers, and upper two layers is the microband paste being printed on medium substrate, and third layer is that low frequency circular polarisation carries on the back chamber；Circular polarizer carries out couple feed by the coupler thereunder, is that the function divides feeding network below the coupler.Microstrip antenna and feed waveguide are carried out Integrated design by Ka wave band list circular polarized antenna designed by the present invention, realize that axis ratio and standing wave bandwidth wider (> 12%), Insertion Loss are smaller；Its cavity body structure is manufactured using complete machine processing technology simultaneously, and simple process, total has preferable fault-tolerance to the error of processing technology, and effectively reduces production cost.
Description
Technical field
The invention belongs to wireless communication field more particularly to a kind of Ka wave band list circular polarized antennas.
Background technique
Antenna is essential component in wireless communication system, can convert the current to radio wave (for emitting),
Radio wave can also be converted into electric current (for receiving).The implementation of antenna is varied, if the far field generated according to it
The direction of electric field intensity divides, and mainly has linear polarized antenna and two kinds of circular polarized antenna.And circular polarized antenna is according to electric field intensity
Left-hand circular polarization and right-handed circular polarization can be divided into again around the direction of rotation of propagation axis.Circular polarized antenna can effectively reduce transmitting day
Line and receiving antenna misalignment and the loss generated, the multipath effect for caused by reflection, diffraction also have inhibiting effect well.
In Ka wave band circular polarized antenna design in recent years, application No. is 201110443445.3, a kind of entitled " Ka
The patent document of the circularly-polarizedhorn horn antenna of wave band leaky-pipe excitation ", discloses the Circular polarization horn day of leaky-pipe excitation
Line, including pyramid loudspeaker and feed waveguide are cracked using feed waveguide and are fed to loudspeaker, and wherein there are also a tune in feed waveguide
Save the adjustable column of impedance matching.
It is entitled " a kind of circularly-polarizedhorn horn antenna of Ka wave band cavity couple feed " application No. is 201310447214.9
Patent document, disclose a kind of circularly-polarizedhorn horn antenna of cavity coupling slot excitation, including feed R-joining, couple R-joining,
Coupled chamber, two pyramid loudspeakers, feed waveguide.Being cracked using coupled waveguide, it is double then to open on coupled chamber to coupled chamber
It stitches and is fed to loudspeaker, wherein there are also the adjustable columns of an adjusting impedance matching in coupled waveguide.
Application No. is 201510488814.9, the patent document of entitled " a kind of circular polarized antenna " discloses communication, surveys
A kind of circular polarized antenna in control field, which includes electromagnetic horn and feed rectangular waveguide, and electromagnetic horn ontology includes spoke
Penetrate layer, transmission network network layers dielectric-slab and reflection cavity layer.Polarizer on transmission network network layers dielectric-slab is that inner curve and external curve enclose
Hook-like configuration made of conjunction.
Application No. is 201210378439.9, the patent of entitled " a kind of broadband miniaturization bispin circular polarized antenna " is literary
Part discloses a kind of bispin circular polarized antenna, including upper layer radiation patch, and lower layer's radiation patch is provided with the floor in coupling gap,
Feeding network, medium substrate etc..The antenna is fed by H-shaped gap medium couples, forms double tunning characteristic.
Application No. is 201510212881.8, the patent document of entitled " circular polarized antenna and preparation method thereof " is disclosed
A kind of circular polarized antenna, including at least two for generating the antenna element of circular polarization radiation, each antenna element is set to installation bottom
It on plate, and is uniformly distributed centered on the center of mounting base, antenna element is microstrip antenna, including the radiation patch stacked gradually
Piece, medium substrate and floor；Mounting base is used for reflection electromagnetic wave；Antenna element is using the center of the mounting base as entelechy
Change center has corresponding unsymmetric structure relative to the center position according to each antenna element.
Application No. is 200920133474.8 patent documents to relate to a kind of circular polarized antenna, and the substrate of the antenna includes
Dielectric boards and radiating surface, radiating surface are arranged in the plate face of dielectric boards, and the centre of radiating surface is equipped with two intersections
The relationship of electric field phase can be changed in gap, the gap, realizes circular polarisation.
In the above-mentioned document retrieved, there are mainly three types of implementations for circular polarized antenna: (1) circularly-polarizedhorn horn antenna.
The form antenna has impedance, axial ratio bandwidth very wide, and feeding network Insertion Loss is low, and radiation efficiency is high, but its volume is relatively large, difficult
With miniaturization.(2) circular polarization microstrip antenna of external circular polarisation electric bridge.The form antenna 3dB axial ratio bandwidth is greater than 15%, is less than
2 standing wave bandwidth can be greater than 20%, and still, external circular polarisation electric bridge occupied space is big, and feeder line is long, and Insertion Loss is big, is unfavorable for antenna
With the Integrated design of feeding network.(3) corner cut circular polarization microstrip antenna.The form antenna structure is simple, and section is low, but antenna
Axis ratio and standing wave bandwidth it is smaller, generally 3%~4%, and its radiation efficiency is relatively low.These three realizations of circular polarized antenna
Mode respectively has advantage and disadvantage, and industry urgent problem to be solved is that feeding network to be realized is integrated with antenna, minimizes, simultaneously
Also ensure wider bandwidth of operation.
The integrated level of existing Ka wave band circular polarized antenna and feeding network is lower, especially when constructing aerial array, feedback
Electric network is complicated, Insertion Loss is high.And the circular polarized antenna realized with single layer microstrip antenna, axis ratio and standing wave bandwidth relative narrower,
Generally 3%~4% or so.
Summary of the invention
In view of the above technical problems, the purpose of the present invention is: microstrip antenna and feed waveguide are subjected to Integrated design, realized
Axis ratio and standing wave bandwidth are wider (> 12%), and feeding network is more simple, the smaller Ka wave band list circular polarized antenna of Insertion Loss, together
When the antenna be easily achieved, processing cost is low.
In order to achieve the above objectives, a kind of the technical solution adopted by the present invention are as follows: single circular polarized antenna of Ka wave band, comprising:
Circular polarizer, medium substrate, coupler and function divide feeding network.
Circular polarizer includes three layers, and upper two layers is the microband paste being printed on medium substrate, and third layer is low frequency entelechy
Change back chamber；Circular polarizer carries out couple feed by coupler thereunder, is that function divides feeding network below coupler.
The top layer of circular polarizer is printed on medium substrate upper surface, is " ten " shaped offset of microstrip patch of small size；Second
Layer is printed on the medium substrate back side, is large-sized " ten " shaped offset of microstrip patch.The size of microband paste be by working frequency and
What the electrical parameter of medium substrate determined.The dimension scale of small size and large-sized microband paste can be within the scope of working band
There is small-scale variation, preferably, the ratio is 1:2 or 1:2 or so.
" ten " shaped offset of microstrip patch of circular polarizer is manufactured using printed circuit board technology.
" ten " shaped offset of microstrip patch of circular polarizer is preferably 16 × 16 structures；Coupler is preferably 16 × 16 structures.
Function 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.
The gain of antenna array normal direction is maximum, and the gain within the scope of 27.3~30.5GHz of frequency band is both greater than 20dB；It stays
Bobbi is both less than -20dB within the scope of 27.3~30.15GHz of frequency band；Axis ratio is both less than within the scope of 27.3~30.5GHz of frequency band
2.2dB。
The invention has the following advantages:
1) the Ka wave band polarizer designed by the present invention, which passed through, is laminated various sizes of " ten " shaped offset of microstrip chip unit
The extension that bandwidth of operation is realized with one layer of circular polarisation back chamber, is greater than 12%.
2) one point four of feed waveguide network of the invention is more simple.
3) mismachining tolerance of the traditional Ka wave band circular polarized antenna based on microstrip antenna to antenna structure and printed circuit board
Very sensitive, processing cost is high.
And the cavity body structure of Ka wave band list circular polarized antenna designed by the present invention is manufactured using complete machine processing technology, technique
Simply, total has preferable fault-tolerance to the error of processing technology, and effectively reduces production cost.
Detailed description of the invention
Fig. 1 is 4 × 4 submatrix antenna structure exploded views of the embodiment of the present invention.
Fig. 2 is 4 × 4 array pattern of 30GHz 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 axis ratio of 4 × 4 aerial arrays of the embodiment of the present invention.
Wherein, 1 small size " ten " shaped offset of microstrip patch for being；2 be medium substrate；3 be large-sized " ten " shaped offset of microstrip
Patch；4 carry on the back chamber for low frequency circular polarisation；5 be coupler；6 divide feeding network for function.
Specific embodiment
For the ease of the understanding of those skilled in the art, the present invention is made further below with reference to embodiment and attached drawing
It is bright.
Fig. 1 show 4 × 4 submatrix antenna assumption diagrams: circular polarizer, coupler 5 and function divide feeding network 6；Circular polarizer
Three layers are shared, wherein top layer is small size " ten " shaped offset of microstrip patch 1, is high frequency circular polarizer, is printed on medium substrate 2
Top layer；Second layer circular polarizer is large-sized " ten " shaped offset of microstrip patch 3, is intermediate frequency circular polarizer, is printed on medium base
2 back side of plate；Third layer circular polarizer is low frequency circular polarisation back chamber 4.It is coupler 5 below circular polarizer, namely the resonant cavity that cracks,
Circular polarizer carries out couple feed by the resonant cavity that cracks, and is that one point four of function divides feeding network 6 below coupler 5.
Small size microband paste 1 and 3 ratio of large scale microband paste are 1:2 or 1:2 or so, the size of microband paste be by
What the electrical parameter of working frequency and medium substrate determined, the dimension scale of small size and large-sized microband paste is in working band
There can be small-scale variation in range.
Single circular polarized antenna is formed by submatrix antenna combination, the caliber size of submatrix aerial array are as follows: 32 × 32mm；
Directional diagram of the antenna array in 30GHz as shown in Fig. 2, 0 ° of respective antenna front of abscissa normal direction, most
Large gain is 22dB；Fig. 3 show gain of the aerial array within the scope of 27.3~30.5GHz, both greater than 20dB.
Standing-wave ratio (VSWR) within the scope of 27.3~30.15GHz of frequency band as shown in figure 4, be both less than -20dB；Axis ratio (AR)
As shown in figure 5, being both less than 2.2dB within the scope of 27.5~30.5GHz of frequency band.
Above embodiment is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all
It is any changes made on the basis of the technical scheme according to the technical idea provided by the invention, each falls within present invention protection model
Within enclosing.The technology that the present invention is not directed to can be realized by existing technology.
Claims (5)
1. a kind of Ka wave band list circular polarized antenna characterized by comprising point feedback of circular polarizer, medium substrate, coupler and function
Electric network；
The circular polarizer includes three layers, and upper two layers is the microband paste being printed on the medium substrate, and third layer is low frequency
Circular polarisation carries on the back chamber；The circular polarizer carries out couple feed by the coupler thereunder, and the coupler lower section is institute
It states function and divides feeding network；
The top layer of the circular polarizer is printed on the medium substrate upper surface, is " ten " shaped offset of microstrip patch of small size；
The second layer is printed on the medium substrate back side, is large-sized " ten " shaped offset of microstrip patch；
The function divides feeding network to be one point of four centimeters of feeding network.
2. Ka wave band list circular polarized antenna according to claim 1, it is characterised in that: " ten " font of the circular polarizer
Microband paste is manufactured using printed circuit board technology.
3. Ka wave band list circular polarized antenna according to claim 1, it is characterised in that: " ten " font of the circular polarizer
Microband paste is 16 × 16 structures；The coupler is 16 × 16 structures.
4. according to claim 1 to Ka wave band list circular polarized antenna described in one of 3, it is characterised in that: it is by submatrix antenna sets
It closes, the caliber size of the submatrix antenna is 32 × 32mm.
5. Ka wave band list circular polarized antenna according to claim 1, it is characterised in that: its antenna array normal direction increases
Beneficial maximum, the gain within the scope of 27.3~30.5GHz of frequency band is both greater than 20dB；
Standing-wave ratio is both less than -20dB within the scope of 27.3~30.15GHz of frequency band；Axis ratio is within the scope of 27.3~30.5GHz of frequency band
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 |
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| 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 CN105914475A (en) | 2016-08-31 |
| CN105914475B true CN105914475B (en) | 2019-05-03 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369905B (en) * | 2017-07-19 | 2020-07-21 | 电子科技大学 | Broadband high-efficiency high-gain circularly polarized array antenna |
| 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 |
| 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 |
| 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 |
| CN110380200B (en) * | 2019-06-24 | 2020-12-11 | 东南大学 | Planar pyramid antenna array with hybrid power division feed |
| CN113193386B (en) * | 2021-04-29 | 2022-09-16 | 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 |
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| CN105914475A (en) | 2016-08-31 |
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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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