CN110048225A - Micro-strip array antenna - Google Patents
Micro-strip array antenna Download PDFInfo
- Publication number
- CN110048225A CN110048225A CN201910267244.9A CN201910267244A CN110048225A CN 110048225 A CN110048225 A CN 110048225A CN 201910267244 A CN201910267244 A CN 201910267244A CN 110048225 A CN110048225 A CN 110048225A
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- micro
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- radiating element
- array antenna
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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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/065—Patch antenna array
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- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
The invention proposes a kind of micro-strip array antennas, including parallel equidistant and be symmetrical set N number of radiating element on medium substrate, the radiating element is fed using any function of T-type point of series-parallel mixed structure than power splitter, and the radiating element is symmetrical series connection micro-strip linear array.The present invention is equidistantly rearranged face battle array with the face H by straight line, and finally realizing antenna gain is 26.2dB, and E surface wave beam width is 7.1 °, and H surface wave beam width is 8.4 °.
Description
Technical field
The invention belongs to antenna technology, specially a kind of micro-strip array antenna.
Background technique
Microstrip antenna is most popular antenna recent years, it is small in size, light weight, has planar structure, mainly
For forming conformal structure in conjunction with the carriers such as guided missile, satellite.Moreover, microstrip antenna also has that compact-sized, performance is steady
Fixed feature is widely used in printed circuit technique mass production, and many function such as be easy to implement two-band, dual polarization
Energy.Micro-strip array antenna is usually used in trailer-mounted radar, wherein being applied to the preceding detection range to the length of anti-collision early warning away from radar needs
Reach 200m or more, it is therefore desirable to which antenna has two kinds of performances of narrow beam and high-gain simultaneously, and design comparison is difficult.Currently,
Trailer-mounted radar working frequency is divided into 24GHz and 77GHz, and the comparison of 24GHz radar development is early, operates mainly in short-range mode, if
Meter is all easier, but size is larger, and the precision of detection is relatively low, and 77GHz radar not only may operate in and grow away from mode,
Also it may operate in short-range mode, since frequency range is higher, the size of antenna is smaller, and has to the smaller target such as pedestrian
There is higher detection accuracy, but the difficulty of its design is bigger.
Summary of the invention
It is an object of the invention to propose a kind of micro-strip array antenna.
Realize technical solution of the invention are as follows: a kind of micro-strip array antenna, including parallel equidistant and bilateral symmetry
N number of radiating element on medium substrate is set, and the radiating element compares function using any function of T-type point of series-parallel mixed structure
Device is divided to be fed, the radiating element is symmetrical series connection micro-strip linear array.
Preferably, the series connection micro-strip linear array includes by concatenated 16 radiation patch of microstrip line, the series connection micro-strip
It is I that linear array radiation patch, which motivates Amplitude Ratio,1: I2: I3: I4: I5: I6: I7: I8=1:0.95:0.86:0.74:0.59:0.45:
0.32:0.25.
Preferably, the method for determining size of the radiation patch are as follows:
According to the dielectric constant and thickness of the medium substrate of selection, calculate most intermediate radiation patch original width and
Length；The width and length of remaining patch are calculated according to the excitation Amplitude Ratio of each patch and most intermediate patches, radiation patch
Original width and calculating formula of length are as follows:
Wherein
εrFor medium substrate dielectric constant, h is dielectric substrate thickness, and f is working frequency.
Compared with prior art, the present invention its remarkable advantage are as follows: minor lobe of the present invention is integrally lower than -20dB, and gain is up to
26.2dB；Narrow to 7.1 ° of E surface wave beam width, H surface wave beam width is narrow to 8.4 °.
Further detailed description is done to the present invention with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is the radiating element microstrip line system of battle formations.
Fig. 2 is radiating element S11 parameter and two-dimensional directional figure simulation result schematic diagram.
Fig. 3 is T-type power splitter feed network structures figure.
Fig. 4 is that Amplitude Ratio simulation result schematic diagram is motivated in each port of T-type power splitter right half plane.
Fig. 5 is each port phase simulation result schematic diagram of T-type power splitter right half plane.
Fig. 6 is T-type power splitter return loss simulation result schematic diagram.
Fig. 7 is array antenna simulation model schematic diagram.
Fig. 8 is array antenna S11 parameter and two-dimensional directional figure simulation result schematic diagram.
Specific embodiment
A kind of micro-strip array antenna, including parallel equidistant and be symmetrical set N number of radiation list on medium substrate
Member, the radiating element are fed using any function of T-type point of series-parallel mixed structure than power splitter, and the radiating element is
Symmetrical series connection micro-strip linear array.
In further embodiment, the port spacing of two neighboring radiating element is 0.7 wavelength.
In further embodiment, the series connection micro-strip linear array includes by concatenated 16 radiation patch of microstrip line, institute
Stating series connection micro-strip linear array radiation patch excitation Amplitude Ratio is I1: I2: I3: I4: I5: I6: I7: I8=1:0.95:0.86:0.74:
0.59:0.45:0.32:0.25.
After determining excitation Amplitude Ratio, the width W of each radiation patch is found out according to excitation amplituden, length Ln, array element spacing
di, it finally substitutes into HFSS and carries out simulation optimization, specifically:
By the permittivity ε of determining working frequency f=77GHz, the medium substrate of selectionrIt is substituted into thickness h following public
Formula calculates the original width W of most intermediate radiation patch, length L is respectively 1.37mm, 1.07mm:
Wherein It is equivalent radiated power gap length, due to excitation amplitude and radiation
The width of patch is directly proportional, calculates respective width according to the excitation Amplitude Ratio of each patch and most intermediate patches, then root again
Length is calculated according to above formula.In order to guarantee that each array element same-phase, spacing are set as d=0.5 λe.Finally by HFSS
W is repeatedly adjusted in modeln, LnAnd diTo reach the optimum figure of linear array.
In further embodiment, the resonance impedance of the radiating element is 50 Ω, and the characteristic impedance of main feeder is 50 Ω.
In further embodiment, design method of any function of T-type point than power splitter are as follows: two neighboring radiating element
It is connected by quarter wavelength impedance transducer, the impedance of each port is found out according to radiating element excitation amplitude, and pressing should
Impedance adjustment impedance transformer, using HFSS simulation optimization；To each radiating element port carry out phase matched, after pass through tune
The length of 50 Ω feeder lines carries out phase matched at whole port.
In further embodiment, the radiating element excitation Amplitude Ratio turned right from centre is I1: I2: I3: I4: I5=1:
0.87:0.66:0.43:0.27.
In further embodiment, the medium substrate dielectric constant is 3.04, and with a thickness of 0.127mm, material is
RO3003。
Embodiment 1
As shown in Figure 1, the radiating element of the micro-strip array antenna of the present embodiment is 1 × 16 series connection microstrip antenna, the wherein face E
As pitching face, the face H is as horizontal plane.The present embodiment takes minor level R0dB=28dB is designed, and is asked according to Taylor Synthesis Method
Amplitude Ratio I is motivated out1: I2: I3: I4: I5: I6: I7: I8=1:0.95:0.86:0.74:0.59:0.45:0.32:0.25.According to sharp
The amplitude of encouraging finds out the width W of each array elementn, length Ln, array element spacing is λe/ 2, λeFor the wavelength in medium and it is updated to HFSS
Middle carry out simulation optimization, show that linear array specific size is as shown in table 1.In the present embodiment, the thickness of the medium substrate is set as
0.127mm, the material of use are RO3003, dielectric constant 3.04.
Table 1
As shown in Fig. 2, it is 77GHz, S that each group of radiating element obtains centre frequency after emulating11The bandwidth of < -10dB is about
For 1.4GHz；The gain of linear array is 17.8dB, minor level SLL=-26.5dB.
As shown in figure 3, the T-type power splitter of the present embodiment design carries out parallelly feeding to the cascaded structure of the right and left, it is left
Right two planes are about centrosymmetric.First have to design function point ratio, the excitation Amplitude Ratio for enabling right half plane turn right from centre
For I5: I4: I3: I2: I1=1:0.87:0.66:0.43:0.27 adjusts the impedance transformer of each road to meet each end
Excitation Amplitude Ratio on mouth.As shown in figure 4, the excitation Amplitude Ratio that emulation obtains each port of feed structure right half plane is substantially full
Foot setting.Phase matched is carried out to each port again, taking port spacing is an effective wavelength in 0.7 λ of fixed value i.e. medium,
The length of 50 Ω feeder lines at port is adjusted with matched-phase.As shown in figure 5, each port phase is almost the same at 77GHz.Such as figure
Shown in 6, after simulation optimization, in the frequency range of 76~81GHz, S11 is respectively less than -20dB, can reach good impedance
Match.
It is emulated as shown in fig. 7, the present embodiment establishes the model i.e. micro-strip array antenna of 10*16 in HFSS.Such as Fig. 8
Shown, antenna gain 26.2dB, E surface wave beam width is 7.1 °, and H surface wave beam width is 8.4 °, minor level is integrally lower than-
20dB；The centre frequency of antenna is in 77GHz, S11=-19dB, S11The bandwidth of < -10dB is about 1.4GHz.
Claims (9)
1. a kind of micro-strip array antenna, which is characterized in that including parallel equidistant and be symmetrical set the N on medium substrate
A radiating element, the radiating element are fed using any function of T-type point of series-parallel mixed structure than power splitter, the spoke
Penetrating unit is symmetrical series connection micro-strip linear array.
2. 77GH high-gain narrow beam micro-strip array antenna according to claim 1, which is characterized in that two neighboring radiation
The port spacing of unit is 0.7 wavelength.
3. micro-strip array antenna according to claim 1, which is characterized in that the series connection micro-strip linear array includes passing through micro-strip
Concatenated 16 radiation patch of line, the series connection micro-strip linear array radiation patch excitation Amplitude Ratio is I1: I2: I3: I4: I5: I6: I7: I8
=1:0.95:0.86:0.74:0.59:0.45:0.32:0.25.
4. micro-strip array antenna according to claim 3, which is characterized in that the method for determining size of the radiation patch
Are as follows:
According to the dielectric constant and thickness of the medium substrate of selection, the original width and length of most intermediate radiation patch are calculated
Degree；Calculate the width and length of remaining patch according to the excitation Amplitude Ratio of each patch and most intermediate patches, radiation patch just
Beginning width and calculating formula of length are as follows:
Wherein εrFor
Medium substrate dielectric constant, h are dielectric substrate thickness, and f is working frequency.
5. micro-strip array antenna according to claim 1, which is characterized in that the resonance impedance of the radiating element is 50
Ω, the characteristic impedance of main feeder are 50 Ω.
6. micro-strip array antenna according to claim 5, which is characterized in that any function of T-type point setting than power splitter
Meter method are as follows: two neighboring radiating element is connected by quarter wavelength impedance transducer, motivates amplitude according to radiating element
The impedance of each port is found out, and presses the impedance adjustment impedance transformer, using HFSS simulation optimization；To each radiating element
Port carries out phase matched, after by adjusting the length of 50 Ω feeder lines at port carry out phase matched.
7. micro-strip array antenna according to claim 6, which is characterized in that the radiating element turned right from centre motivates amplitude
Than for I1: I2: I3: I4: I5=1:0.87:0.66:0.43:0.27.
8. micro-strip array antenna according to claim 1, which is characterized in that the medium substrate dielectric constant is 3.04,
With a thickness of 0.127mm, material RO3003.
9. micro-strip array antenna according to claim 1, which is characterized in that N takes 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910267244.9A CN110048225A (en) | 2019-04-03 | 2019-04-03 | Micro-strip array antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910267244.9A CN110048225A (en) | 2019-04-03 | 2019-04-03 | Micro-strip array antenna |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474164A (en) * | 2019-08-15 | 2019-11-19 | 惠州市德赛西威智能交通技术研究院有限公司 | A kind of vehicle-mounted millimeter wave broad-band chip integrated waveguide slot antenna |
| CN110649394A (en) * | 2019-10-08 | 2020-01-03 | 上海无线电设备研究所 | Microstrip traveling wave array antenna |
| CN111162377A (en) * | 2019-12-12 | 2020-05-15 | 深圳森云智能科技有限公司 | Series feed microstrip array antenna and combined microstrip array antenna |
| CN111276784A (en) * | 2020-03-23 | 2020-06-12 | 深圳市豪恩汽车电子装备股份有限公司 | Microstrip array antenna and microstrip power divider thereof |
| CN111710995A (en) * | 2020-06-02 | 2020-09-25 | 深圳市豪恩汽车电子装备股份有限公司 | Radiation line array and design method thereof |
| CN111753434A (en) * | 2020-07-03 | 2020-10-09 | 湖南华诺星空电子技术有限公司 | Ultra-narrow-band navigation interference antenna design method, antenna and application thereof |
| CN112821091A (en) * | 2020-12-31 | 2021-05-18 | 中国电子科技集团公司第十四研究所 | W-band high-gain zero-dispersion glass-based microstrip array antenna |
| CN113258991A (en) * | 2021-04-13 | 2021-08-13 | 西北大学 | Scattering communication system, microstrip antenna, array and communication distance improving method |
| CN113587990A (en) * | 2021-07-30 | 2021-11-02 | 中北大学 | Parameter detection method, device and equipment based on microstrip antenna sensor |
| EP3961814A1 (en) * | 2020-08-24 | 2022-03-02 | Arcadyan Technology Corporation | Antenna for suppressing the gain of side lobes |
| CN114597659A (en) * | 2022-03-03 | 2022-06-07 | 福瑞泰克智能系统有限公司 | Microstrip antenna and sensing equipment |
| CN117039421A (en) * | 2023-09-14 | 2023-11-10 | 南京林业大学 | Design method of rectangular microstrip antenna array of vehicle-mounted millimeter wave radar |
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| CN206098694U (en) * | 2016-09-14 | 2017-04-12 | 安徽大学 | Microstrip array antenna |
| CN106602244A (en) * | 2016-12-09 | 2017-04-26 | 安徽四创电子股份有限公司 | Micro-strip array antenna |
| CN109193177A (en) * | 2018-08-02 | 2019-01-11 | 惠州市德赛西威汽车电子股份有限公司 | A kind of vehicle-mounted 77GHz millimetre-wave radar antenna |
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2019
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206098694U (en) * | 2016-09-14 | 2017-04-12 | 安徽大学 | Microstrip array antenna |
| CN106602244A (en) * | 2016-12-09 | 2017-04-26 | 安徽四创电子股份有限公司 | Micro-strip array antenna |
| CN109193177A (en) * | 2018-08-02 | 2019-01-11 | 惠州市德赛西威汽车电子股份有限公司 | A kind of vehicle-mounted 77GHz millimetre-wave radar antenna |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474164A (en) * | 2019-08-15 | 2019-11-19 | 惠州市德赛西威智能交通技术研究院有限公司 | A kind of vehicle-mounted millimeter wave broad-band chip integrated waveguide slot antenna |
| CN110649394A (en) * | 2019-10-08 | 2020-01-03 | 上海无线电设备研究所 | Microstrip traveling wave array antenna |
| CN111162377A (en) * | 2019-12-12 | 2020-05-15 | 深圳森云智能科技有限公司 | Series feed microstrip array antenna and combined microstrip array antenna |
| CN111276784A (en) * | 2020-03-23 | 2020-06-12 | 深圳市豪恩汽车电子装备股份有限公司 | Microstrip array antenna and microstrip power divider thereof |
| CN111710995A (en) * | 2020-06-02 | 2020-09-25 | 深圳市豪恩汽车电子装备股份有限公司 | Radiation line array and design method thereof |
| CN111753434A (en) * | 2020-07-03 | 2020-10-09 | 湖南华诺星空电子技术有限公司 | Ultra-narrow-band navigation interference antenna design method, antenna and application thereof |
| EP3961814A1 (en) * | 2020-08-24 | 2022-03-02 | Arcadyan Technology Corporation | Antenna for suppressing the gain of side lobes |
| CN112821091A (en) * | 2020-12-31 | 2021-05-18 | 中国电子科技集团公司第十四研究所 | W-band high-gain zero-dispersion glass-based microstrip array antenna |
| CN113258991A (en) * | 2021-04-13 | 2021-08-13 | 西北大学 | Scattering communication system, microstrip antenna, array and communication distance improving method |
| CN113258991B (en) * | 2021-04-13 | 2023-02-14 | 西北大学 | Scattering communication system, microstrip antenna, array and communication distance improving method |
| CN113587990A (en) * | 2021-07-30 | 2021-11-02 | 中北大学 | Parameter detection method, device and equipment based on microstrip antenna sensor |
| CN114597659A (en) * | 2022-03-03 | 2022-06-07 | 福瑞泰克智能系统有限公司 | Microstrip antenna and sensing equipment |
| CN114597659B (en) * | 2022-03-03 | 2024-04-09 | 福瑞泰克智能系统有限公司 | Microstrip antenna and sensing equipment |
| CN117039421A (en) * | 2023-09-14 | 2023-11-10 | 南京林业大学 | Design method of rectangular microstrip antenna array of vehicle-mounted millimeter wave radar |
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Application publication date: 20190723 |