CN108232445A - Triangle spiral slit-compound ultra-wide band antenna of hexagonal array and its method of work - Google Patents
Triangle spiral slit-compound ultra-wide band antenna of hexagonal array and its method of work Download PDFInfo
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- CN108232445A CN108232445A CN201810088623.7A CN201810088623A CN108232445A CN 108232445 A CN108232445 A CN 108232445A CN 201810088623 A CN201810088623 A CN 201810088623A CN 108232445 A CN108232445 A CN 108232445A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/25—Ultra-wideband [UWB] systems, e.g. multiple resonance systems; Pulse systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Waveguide Aerials (AREA)
Abstract
The present invention relates to a kind of compound ultra-wide band antenna of triangle spiral slit hexagonal array and its method of works, it is characterised in that：Its compound ultra-wide band antenna of intermediate cam spiral slit hexagonal array, the antenna includes substrate, the antenna ground plate for being covered in substrate back and the triangle spiral slit hexagonal array recombination radiation patch for being covered in substrate front side, the triangle spiral slit hexagonal array recombination radiation patch is the combined antenna formed according to hexagonal array structural arrangement, the hexagonal array structure is made of 6 regular hexagons around 1 regular hexagon, each regular hexagon region division is 6 equilateral triangle regions, and fill equilateral triangle region with triangle spiral slit miniature antenna, i.e. described triangle spiral slit hexagonal array recombination radiation patch includes 42 triangle spiral slit miniature antennas.The compound ultra-wide band antenna structure of triangle spiral slit hexagonal array of the present invention is simple, reasonable design, the compatibility to the 5th Generation Mobile Communication System, radio-frequency recognition system, ultra-wideband communication system and mobile digital TV system to the second generation is advantageously implemented, and all reliable and stable in the radiance of each working frequency range.
Description
Technical field：
The present invention relates to a kind of triangle spiral slit-compound ultra-wide band antenna of hexagonal array and its method of works.
Background technology：
At present, the mobile communication technology in China passes through years development, comes into forth generation mobile communication, and will be in the year two thousand twenty
The front and rear gate for marching toward the 5th third-generation mobile communication, the second generation, the third generation, forth generation, the 5th third-generation mobile communication wireless signal will be
It is coexisted for a long time in space.At the same time, Radio Frequency Identification Technology, Ultra-wideband Communication Technology, mobile digital TV technology also all obtain
It is widely applied.More net unifications are the important trends of wireless communication technique development, it is desirable that wireless communication terminal tool of new generation
Standby multiband compatibility function, may be simultaneously operated in the second generation to the 5th third-generation mobile communication frequency range, radio frequency identification frequency range, ultra wide band
Communications band, mobile digital TV frequency range.
The Generation Mobile Telecommunication System frequency range that China uses at present for 0.905~0.915 GHz of GSM standards, 0.950~
0.960 GHz, 1.710~1.785 GHz, 1.805~1.880 ghz bands；3G (Third Generation) Moblie frequency range is TD-SCDMA
1.880~1.920 GHz of standard, 2.010~2.025 GHz, 2.300~2.400 ghz bands and WCDMA standards 1.920~
1.980 GHz, 2.110~2.170 ghz bands；Forth generation mobile communication frequency range is TD-LTE standards 2.570~2.620
Ghz band.Candidate frequency range that there are three the 5th third-generation mobile communications that will be come into operation, respectively：3.300~3.400 GHz,
4.400~4.500 GHz, 4.800~4.990 GHz.There are three main working frequency range for radio-frequency recognition system：0.902~
0.928 GHz, 2.400~2.4835 GHz, 5.725~5.875 GHz.The working frequency range of radio ultra wide band system for 3.100~
10.600 GHz.Mobile digital TV system working frequency range is 11.700~12.200 GHz.
Low section multi-frequency plane spiral slit antenna, double frequency omnibearing substrate integration wave-guide spiral currently used for collection of energy
Slot antenna, double frequency omnibearing spiral slit antenna, spiral slit circularly-polarizedhorn horn antenna have four invention patent mandates：
1. Tan Li appearances, Zhao Feng, Sun Youming, the yellow sky, Liu Yudong, for the low section multi-frequency plane spiral slit of collection of energy
Antenna, the patent No.：201720216274.3 it is authorized within 8th in September in 2017.
2. Tan Li appearances, Zhu Yuying, Yang Ziyi, Yang Chen, Zhang Zhaofeng, a kind of double frequency omnibearing substrate integration wave-guide spiral slit
Antenna, the patent No.：201620820259.5 it is authorized on July 29th, 2016.
3. Tan Li appearances, Zhu Yuying, Yang Ziyi, Yang Chen, Zhang Zhaofeng, a kind of double frequency omnibearing spiral slit antenna, the patent No.：
201620818697.8 it is authorized on July 29th, 2016.
4. Song grows macro, spiral slit circularly-polarizedhorn horn antenna, the patent No.：201620136844.3 in August, 2016
It authorizes within 17th.
What patent 1, patent 2, patent 3, patent 4 used is all plane equiangular spiral gap structure, and antenna can only cover
The lid second generation, the third generation, forth generation mobile division divide working frequency range, can not radiate superimposed, can not realize ultrabroad band work
Work and poor work stability.
Invention content：
The purpose of the present invention is to provide a kind of triangle spiral slit-compound ultra-wide band antenna of hexagonal array and its work
Method, the triangle spiral slit-compound ultra-wide band antenna structure of hexagonal array is simple, reasonable design, is advantageously implemented pair
The second generation is simultaneous to the 5th Generation Mobile Communication System, radio-frequency recognition system, ultra-wideband communication system and mobile digital TV system
Hold, and all reliable and stable in the radiance of each working frequency range.
The triangle spiral slit of the present invention-compound ultra-wide band antenna of hexagonal array, it is characterised in that：The antenna includes
Substrate, the antenna ground plate for being covered in substrate back and be covered in substrate front side triangle spiral slit-hexagonal array it is compound
Radiation patch, the triangle spiral slit-hexagonal array recombination radiation patch are formed according to hexagonal array structural arrangement
Combined antenna, the hexagonal array structure is made of 6 regular hexagons around 1 regular hexagon, each regular hexagon area
Domain is divided into 6 equilateral triangle regions, and fills equilateral triangle region, i.e., described triangle with triangle spiral slit miniature antenna
Spiral slit-hexagonal array recombination radiation patch includes 42 triangle spiral slit miniature antennas.
Further, above-mentioned triangle spiral slit miniature antenna is in the equilateral triangle that a length of side is ± 0.1 mm of 8.0 mm
Triangle spiral slit is opened up in shape.
Further, above-mentioned triangle spiral slit is made of at least 4 sections of gaps, and the angle between adjacent two sections of gaps is 60
Degree, gap width are ± 0.02 mm of 0.1 mm.
Further, the length of side of above-mentioned regular hexagon is all ± 0.1 mm of 8.0 mm.
Further, the bottom edge center of above-mentioned triangle spiral slit-hexagonal array recombination radiation patch is equipped with day
Line distributing point.
Further, aforesaid substrate be low-loss microwave ceramics substrate, relative dielectric constant 45-55.
Further, the shape of aforesaid substrate is rectangle, and size is ± 0.1 mm of 40 mm × ± 0.1 mm of 41.6 mm, thick
It spends for ± 0.1 mm of 1 mm.
Further, above-mentioned antenna ground plate is the material of all-metal ground structure, antenna ground plate and recombination radiation patch
Matter is copper, silver, gold or aluminium.
The method of work of triangle spiral slit of the present invention-compound ultra-wide band antenna of hexagonal array, it is characterised in that：Institute
It states triangle spiral slit-compound ultra-wide band antenna of hexagonal array and includes substrate, the antenna ground plate for being covered in substrate back
With the triangle spiral slit-hexagonal array recombination radiation patch for being covered in substrate front side, the triangle spiral slit-hexagon
Array recombination radiation patch is the combined antenna formed according to hexagonal array structural arrangement, and the hexagonal array structure is by 6
A regular hexagon is formed around 1 regular hexagon, and each regular hexagon region division is 6 equilateral triangle regions, and with three
Angle spiral slit miniature antenna filling equilateral triangle region, i.e., described triangle spiral slit-hexagonal array recombination radiation patch
Including 42 triangle spiral slit miniature antennas；During work, triangle spiral slit structure is in the whole knot for not changing triangle antenna
On the basis of structure, the radiation by multistage different length gap is superimposed, realizes ultrabroad band work；Hexagonal array structure is protected
Antenna structure ideal symmetrical is demonstrate,proved, inner antenna has equally distributed radio-frequency current, increases the bandwidth of operation of antenna.
Further, the working band of above-mentioned antenna ranging from 0.536~14.887 GHz, bandwidth of operation 14.351
GHz, bandwidth octave are 27.77, and -10 dB, return loss minimum value are below in entire working band internal antenna return loss
For -43.92 dB, this antenna completely covers 0.902~0.928 GHz, 0.905~0.915 GHz, 0.950~0.960
GHz, 1.710~1.785 GHz, 1.805~1.880 GHz, 1.880~1.920 GHz, 1.920~1.980 GHz, 2.010
~2.025 GHz, 2.110~2.170 GHz, 2.300~2.400 GHz, 2.400~2.4835 GHz, 2.570~2.620
GHz, 3.300~3.400 GHz, 4.400~4.500 GHz, 4.800~4.990 GHz, 5.725~5.875 GHz, 3.100
~10.600 GHz, it all standard all working frequency ranges of 11.700~12.200 GHz second generations to the 5th third-generation mobile communication, penetrates
Frequency identifying system working frequency range, radio ultra wide band system working frequency range, mobile digital TV system working frequency range.
The present invention is with being used for mobile communication system, radio-frequency recognition system, ultra-wideband communication system, mobile digital TV system
Conventional aerial compare, this antenna has the advantages that prominent and significant effect：This antenna has excellent ultrabroad band
Working characteristics, bandwidth of operation are up to 14.351 GHz, and bandwidth octave reaches 27.77；This antenna is realized to the second generation extremely
5th Generation Mobile Communication System, radio-frequency recognition system, ultra-wideband communication system and mobile digital TV system compatibility, and have compared with
Big performance redundancy, it is all reliable and stable in the radiance of each working frequency range；Antenna has used extremely firm hexagonal array
Structure, has very high mechanical strength, and anti-destructive is strong.
Description of the drawings：
Fig. 1 is the organigram of triangle spiral slit miniature antenna；
Fig. 2 is the organigram in regular hexagon region in hexagonal array structure；
Fig. 3 is the profile construction schematic diagram of inventive antenna；
Fig. 4 is the vertical view organigram of Fig. 3；
Fig. 5 is the return loss (S of inventive antenna11) performance map.
Specific embodiment：
The method of the present invention is described in further detail with reference to embodiment.It should be strongly noted that the guarantor of the present invention
Shield range should include but not limited to the technology contents disclosed in the present embodiment.
The triangle spiral slit of the present invention-compound ultra-wide band antenna of hexagonal array, the antenna include substrate 1, paste
1 back side of substrate antenna ground plate 2 and be covered in triangle spiral slit-hexagonal array recombination radiation patch of substrate front side
3, the triangle spiral slit-hexagonal array recombination radiation patch is the compound day formed according to hexagonal array structural arrangement
Line, the hexagonal array structure are made of 6 regular hexagons around 1 regular hexagon, and each regular hexagon region 5 is divided into
6 equilateral triangle regions, and fill equilateral triangle region, i.e., described triangle spiral seam with triangle spiral slit miniature antenna 4
Gap-hexagonal array recombination radiation patch 3 includes 42 triangle spiral slit miniature antennas 4.
Further, for reasonable design, above-mentioned triangle spiral slit miniature antenna be a length of side be 8.0 mm ± 0.1
Triangle spiral slit 6 is opened up on the equilateral triangle of mm.
Further, for reasonable design, above-mentioned triangle spiral slit is made of at least 4 sections of gaps, adjacent two sections of gaps
Between angle be 60 degree, gap width be ± 0.02 mm of 0.1 mm.Triangle spiral slit in specific embodiment is by 10 sections of seams
Gap forms, and the angle between adjacent two sections of gaps is 60 degree, and gap width is ± 0.02 mm of 0.1 mm.
Further, for reasonable design, the length of side of above-mentioned regular hexagon is all ± 0.1 mm of 8.0 mm.
Further, the bottom edge center of above-mentioned triangle spiral slit-hexagonal array recombination radiation patch is equipped with day
Line distributing point.
Further, aforesaid substrate is low-loss microwave ceramics substrate（Or microwave medium ceramic substrate）, it is opposite to be situated between
Electric constant is 45-55；The shape of aforesaid substrate is rectangle, and size is ± 0.1 mm of 40 mm × ± 0.1 mm of 41.6 mm, thickness
For ± 0.1 mm of 1 mm.Above-mentioned antenna ground plate is the material of all-metal ground structure, antenna ground plate and recombination radiation patch
For copper, silver, gold or aluminium etc..
Fig. 5 gives the return loss (S of the embodiment of the present invention11) performance map, from fig. 5, it can be seen that measured result is shown,
The working band of this antenna ranging from 0.536~14.887 GHz, bandwidth of operation are 14.351 GHz, and bandwidth octave is
27.77, -10 dB are below in entire working band internal antenna return loss, return loss minimum value is -43.92 dB.Actual measurement
The results show that this antenna has excellent ultrabroad band working characteristics, radiance is reliable and stable, can be compatible with the second generation extremely
5th Generation Mobile Communication System, radio-frequency recognition system, ultra-wideband communication system and mobile digital TV system, in more net unifications
Have broad application prospects in wireless communications products.
Triangle spiral slit structure of the present invention is a kind of to be rearranged by multistage rectilinear slot according to triangle helix rule
Spiral slit structure, it is made of 4 sections or more gaps, the angle interior angle number corresponding with triangle between adjacent two sections of gaps
Equal, during rotating, the length of rectilinear slot constantly reduces.Every section of rectilinear slot of spiral slit structure can
Enough individually to generate radiation, the length in every section of gap is different, and radiating bands are different, and the radiation in multistage gap is superimposed, can be with
Form a very wide radiating bands.Triangle spiral slit structure can be on the basis of primary antenna overall structure not be changed, greatly
The big bandwidth performance for improving triangle antenna.Invention hexagonal array structure is the bionical knot of honeycomb structure in natural imitation circle
Structure, space availability ratio is high, and extremely firm, has very high mechanical strength and good anti-destructive.Hexagonal array knot
Structure is a kind of ideal symmetrical structure, and radio-frequency current can be uniformly distributed inside it, ensure that antenna works with ultrabroad band
Characteristic.
Background technology Patent 1, patent 2, patent 3, patent 4 use plane equiangular spiral gap structure, with this specially
Profit is applied entirely different according to the triangle spiral slit structure that triangle helix rule rearranges by multistage rectilinear slot.Patent
1st, patent 2, patent 3, patent 4 are unused the hexagonal array structure of present patent application.Patent 1, patent 2, patent 3 antenna
The second generation can be covered, the third generation, forth generation mobile division divide working frequency range, the antenna of patent 4 is mainly used for TT＆C system,
And the antenna of present patent application can cover the second generation to the 5th third-generation mobile communication frequency range, radio frequency identification frequency range, ultra wide band simultaneously
Communications band, mobile digital TV frequency range, are more nets unification antennas of a multiband compatibility, patent 1, patent 2, patent 3, specially
Sharp 4 antenna and the antenna of present patent application have larger difference in application field.
Triangle spiral slit-hexagonal array combined antenna of present patent application has both triangle spiral slit antenna and six sides
The advantages of shape array structure.Triangle spiral slit structure is not on the basis of the overall structure of triangle antenna is changed, by more
The radiation in section different length gap is superimposed, realizes ultrabroad band work.Hexagonal array structure ensure that antenna structure perfection
Symmetrically, inner antenna has equally distributed radio-frequency current, further increases the bandwidth of operation of antenna.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification should all belong to the covering scope of the present invention.
Claims (10)
1. a kind of triangle spiral slit-compound ultra-wide band antenna of hexagonal array, it is characterised in that：The antenna includes base
Plate, the antenna ground plate for being covered in substrate back and the triangle spiral slit-compound spoke of hexagonal array for being covered in substrate front side
Patch is penetrated, the triangle spiral slit-hexagonal array recombination radiation patch is formed according to hexagonal array structural arrangement
Combined antenna, the hexagonal array structure are made of 6 regular hexagons around 1 regular hexagon, each regular hexagon region
6 equilateral triangle regions are divided into, and equilateral triangle region, i.e., described triangle spiral shell are filled with triangle spiral slit miniature antenna
It revolves gap-hexagonal array recombination radiation patch and includes 42 triangle spiral slit miniature antennas.
2. the triangle spiral slit according to claim 1-compound ultra-wide band antenna of hexagonal array, it is characterised in that：
The triangle spiral slit miniature antenna is to open up triangle spiral on the equilateral triangle that a length of side is ± 0.1 mm of 8.0 mm
Gap.
3. the triangle spiral slit according to claim 2-compound ultra-wide band antenna of hexagonal array, it is characterised in that：
The triangle spiral slit is made of at least 4 sections of gaps, and the angle between adjacent two sections of gaps is 60 degree, gap width 0.1
mm±0.02 mm。
4. the triangle spiral slit according to claim 1-compound ultra-wide band antenna of hexagonal array, it is characterised in that：
The length of side of the regular hexagon is all ± 0.1 mm of 8.0 mm.
5. the triangle spiral slit according to claim 1-compound ultra-wide band antenna of hexagonal array, it is characterised in that：
The bottom edge center of the triangle spiral slit-hexagonal array recombination radiation patch is equipped with antenna feed point.
6. triangle spiral slit-compound ultra-wide band antenna of hexagonal array according to claim 1,2,3,4 or 5,
It is characterized in that：The substrate be low-loss microwave ceramics substrate, relative dielectric constant 45-55.
7. triangle spiral slit-compound ultra-wide band antenna of hexagonal array according to claim 1,2,3,4 or 5,
It is characterized in that：The shape of the substrate is rectangle, and size is ± 0.1 mm of 40 mm × ± 0.1 mm of 41.6 mm, and thickness is 1 mm
±0.1 mm。
8. triangle spiral slit-compound ultra-wide band antenna of hexagonal array according to claim 1,2,3,4 or 5,
It is characterized in that：The antenna ground plate is all-metal ground structure, the material of antenna ground plate and recombination radiation patch is copper,
Silver, gold or aluminium.
9. a kind of method of work of triangle spiral slit-compound ultra-wide band antenna of hexagonal array, it is characterised in that：Described three
Angle spiral slit-compound ultra-wide band antenna of hexagonal array includes substrate, the antenna ground plate and patch that are covered in substrate back
Overlay on triangle spiral slit-hexagonal array recombination radiation patch of substrate front side, the triangle spiral slit-hexagonal array
Recombination radiation patch is the combined antenna formed according to hexagonal array structural arrangement, the hexagonal array structure by 6 just
Hexagon is formed around 1 regular hexagon, and each regular hexagon region division is 6 equilateral triangle regions, and with triangle spiral shell
Gap miniature antenna filling equilateral triangle region is revolved, i.e., described triangle spiral slit-hexagonal array recombination radiation patch includes
42 triangle spiral slit miniature antennas；During work, triangle spiral slit structure is not changing the integrally-built of triangle antenna
On the basis of, the radiation by multistage different length gap is superimposed, realizes ultrabroad band work；Hexagonal array structure ensures day
Cable architecture ideal symmetrical, inner antenna have equally distributed radio-frequency current, increase the bandwidth of operation of antenna.
10. the method for work of triangle spiral slit according to claim 9-compound ultra-wide band antenna of hexagonal array,
It is characterized in that：The working band of the antenna ranging from 0.536~14.887 GHz, bandwidth of operation be 14.351 GHz, band
Wide octave be 27.77, entire working band internal antenna return loss be below -10 dB, return loss minimum value for -
43.92 dB, this antenna completely cover 0.902~0.928 GHz, 0.905~0.915 GHz, 0.950~0.960
GHz, 1.710~1.785 GHz, 1.805~1.880 GHz, 1.880~1.920 GHz, 1.920~1.980 GHz, 2.010
~2.025 GHz, 2.110~2.170 GHz, 2.300~2.400 GHz, 2.400~2.4835 GHz, 2.570~2.620
GHz, 3.300~3.400 GHz, 4.400~4.500 GHz, 4.800~4.990 GHz, 5.725~5.875 GHz, 3.100
~10.600 GHz, it all standard all working frequency ranges of 11.700~12.200 GHz second generations to the 5th third-generation mobile communication, penetrates
Frequency identifying system working frequency range, radio ultra wide band system working frequency range, mobile digital TV system working frequency range；With for mobile communication
System, radio-frequency recognition system, ultra-wideband communication system, mobile digital TV system conventional aerial compare, this antenna has
The advantages of prominent and significant effect：This antenna has excellent ultrabroad band working characteristics, and bandwidth of operation is up to 14.351
GHz, bandwidth octave reach 27.77；This antenna is realized to the second generation to the 5th Generation Mobile Communication System, radio frequency identification system
The compatibility of system, ultra-wideband communication system and mobile digital TV system, and have larger performance redundancy, in the spoke of each working frequency range
It is all reliable and stable to penetrate performance；Antenna has used extremely firm hexagonal array structure, has very high mechanical strength, collapse resistance
Property is strong.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810088623.7A CN108232445B (en) | 2018-01-30 | 2018-01-30 | Triangular spiral slot-hexagonal array composite ultra-wideband antenna and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810088623.7A CN108232445B (en) | 2018-01-30 | 2018-01-30 | Triangular spiral slot-hexagonal array composite ultra-wideband antenna and working method thereof |
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| CN108232445B CN108232445B (en) | 2023-05-09 |
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| CN109390686A (en) * | 2018-10-12 | 2019-02-26 | 天津大学 | A kind of wearable Miniaturisation ultra-wideband antenna based on polyimides |
| CN109546345A (en) * | 2018-10-12 | 2019-03-29 | 天津大学 | A kind of miniature ultra wide band hexagonal antenna dividing shape based on kock |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390686A (en) * | 2018-10-12 | 2019-02-26 | 天津大学 | A kind of wearable Miniaturisation ultra-wideband antenna based on polyimides |
| CN109546345A (en) * | 2018-10-12 | 2019-03-29 | 天津大学 | A kind of miniature ultra wide band hexagonal antenna dividing shape based on kock |
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| Publication number | Publication date |
|---|---|
| CN108232445B (en) | 2023-05-09 |
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