CN108682953A - A kind of ultra wide bandwidth angle closely coupled antennae - Google Patents
A kind of ultra wide bandwidth angle closely coupled antennae Download PDFInfo
- Publication number
- CN108682953A CN108682953A CN201810222246.1A CN201810222246A CN108682953A CN 108682953 A CN108682953 A CN 108682953A CN 201810222246 A CN201810222246 A CN 201810222246A CN 108682953 A CN108682953 A CN 108682953A
- Authority
- CN
- China
- Prior art keywords
- dielectric
- ultra wide
- antenna
- floor
- medium plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
-
- 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
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention relates to a kind of wide angle antennas of ultra wide band close coupling, include the array element of arrangement of multiple periods, each array element includes two identical dipole antennas, first medium plate, second medium plate, frequency-selective surfaces, two Marchand baluns, resistive surface, floor and the power splitter being set on the downside of floor；Covering frequence selects surface, frequency-selective surfaces to be arranged between two dielectric-slabs above dipole antenna；The lower section of dipole antenna is Marchand baluns, and feed is balanced to antenna.The feature at ultra wide bandwidth angle may be implemented in the present invention, and there is low section, advantage simple in structure, easy to process can be produced in batches using printed circuit technique.
Description
Technical field
The present invention relates to wideband phased array field, especially a kind of ultra wide bandwidth angle closely coupled antennae.
Background technology
As electronic countermeasure and field of radar are grown rapidly, especially broadband interference and counter-measure, high-resolution and more
The development of dimension imaging, target identification etc., has higher requirement to the working band of array antenna.On the other hand, for
Electronic countermeasure and radar system platform, the reduction of number of antennas used can be reduced between the complexity of electronic equipment and each antenna
Mutual coupling, so such system platform has urgent demand to bandwidth and ultra wide band array antenna.Traditional ultra wide band array
Antenna mostly uses Vivaldi antennas as array element form.Ben A in recent years, Munk have developed tightly in close coupling technical foundation
The close coupling ultra wide band phased array antenna of solid matter cloth opens new thinking, in national defense and military for ultra wide band array antenna design
There is prodigious research significance in field.It is concentrated mainly on ultra wide band phased-array antenna currently based on the research of close coupling technology
On design direction, and in fields such as commercial wireless communications, still there are very big potentiality to the research and development and application of the technology.
In conclusion in fields such as civilian wireless communication, geophysics and bioengineering, broadband beam antenna and ultra wide band
Gain antenna has very high application value.Ultra wide band close coupling array antenna and antenna based on close coupling technology are studied in army
There are huge application potential and researching value in thing national defence and commercial communication field.
Invention content
The purpose of the present invention is to provide it is a kind of it is simple in structure, section is low, ultra wide bandwidth easy to process, function admirable angle
Closely coupled antennae can be produced in batches using printed circuit technique.
Realize that the technical solution of the object of the invention is：A kind of ultra wide band close coupling array antenna, including multiple periods
The array element of arrangement, each array element include two identical dipole antennas, first medium plate, second medium plate, frequency
Rate selects surface, two Marchand baluns, resistive surface, floor and the power splitter being set on the downside of floor；
Two dipole antennas are placed side by side, and each dipole antenna includes two that the two sides before and after two dielectric-slabs is arranged
Part；Covering frequence selects surface, frequency-selective surfaces to be arranged between two dielectric-slabs above dipole antenna；Marchand
Balun includes strip line and microstrip line, and strip line is arranged between two dielectric-slabs, and microstrip line is arranged in first medium plate surface；
Two microstrip lines are connected by the power splitter below floor；One layer of resistive surface, resistive table are set between dipole antenna and floor
Face is parallel with floor, vertical with two dielectric-slabs.
Compared with prior art, the present invention its remarkable advantage is：(1) present invention uses dipole antenna as close coupling day
Line, simple in structure, section is lower, can ensure the matching of impedance in very wide frequency band, realizes the low-voltage in broadband
Standing-wave ratio is easy conformal；(2) present invention uses the Marchand baluns of microstrip structure, the antenna for being further to be easier size
It is small and convenient for integrated with antenna；(3) frequency-selective surfaces and microstrip power divider use microstrip structure, are further simplified processing
Difficulty is convenient for antenna overall processing on one block of pcb board material；(4) resistive surface's layer is introduced, the band of antenna is further increased
It is wide.
Description of the drawings
Fig. 1 is ultra wide band close coupling array antenna unit structure chart of the present invention.
Fig. 2 is ultra wide band close coupling array antenna unit explosive view of the present invention.
Fig. 3 (a) and Fig. 3 (b) is the equivalent circuit diagram of single close coupling array element.
Fig. 4 is the voltage standing wave ratio schematic diagram of ultra wide band wide-angle closely coupled antennae of the present invention.
Fig. 5 is the front view of 8 × 8 aerial arrays.
Fig. 6 is the maximum axial gain schematic diagram of ultra wide band wide-angle closely coupled antennae array of the present invention.
Fig. 7 (a), Fig. 7 (b), Fig. 7 (c), Fig. 7 (d) are ultra wide band wide-angle closely coupled antennae arrays of the present invention in 2GHz,
Beam scanning direction figure under 6GHz, 10GHz, 14GHz different frequent points.
Specific implementation mode
In conjunction with Fig. 1, Fig. 2, a kind of ultra wide band close coupling array antenna includes the array element of arrangement of multiple periods, each
Array element includes two identical dipole antenna a, b, first medium plate d, second medium plate c, frequency-selective surfaces e, two
A Marchand baluns f, resistive surface h, floor i and the power splitter g being set on the downside of floor；
Two dipole antennas are placed side by side, and each dipole antenna includes two parts, are separately positioned on two dielectric-slabs
Front and back two sides；Covering frequence selects surface above antenna, and to realize that wide angle is impedance-compensated, frequency-selective surfaces are arranged at two
Between dielectric-slab；Marchand baluns include strip line and microstrip line, and strip line is arranged between two dielectric-slabs, and microstrip line is set
It sets in first medium plate surface；Two microstrip lines are connected by the power splitter g below the i of floor；It is set between dipole antenna and floor i
One layer of resistive surface h is set, for further increasing bandwidth, resistive surface h is parallel with floor, vertical with dielectric-slab.
The first medium plate d, second medium plate c are the Rogers RO4350 of dielectric constant 3.66.
First medium plate d, second medium plate c thickness be 0.25mm.
The brachium of two dipole antennas has lap two dielectric-slab both sides, forms coupled capacitor.
The face resistance of resistive surface h is 370 Ω/square.
The processing for enabling to antenna more convenient using frequency-selective surfaces, weight is lighter, and cost is lower；Close coupling shape
Marchand baluns use micro-strip~strip lines configuration, smaller, easy to process.
Present invention is further described in detail with reference to the accompanying drawings and embodiments.
Embodiment
In conjunction with Fig. 1, Fig. 2, a kind of ultra wide bandwidth angle closely coupled antennae, including two identical dipole antennas connect side by side
In dielectric-slab front and rear sides, a row FSS is covered above dipole antenna, it is impedance-compensated when being scanned as wide-angle；Dipole
The lower section of antenna is Marchand baluns, and feed is balanced to antenna, its main feature is that size is small, it can be with dipole antenna collection
At on dielectric-slab；Broadband one-to-two power splitter feeds feed Balun, to make antenna only need a feed port.
For printed dipole antenna in the both sides of dielectric-slab, it is micro-strip to be printed on dielectric-slab both sides Marchand feed Baluns
The form of line-strip line is balanced feed in specified bandwidth to antenna.It is two-way 100 that microstrip power divider, which is 50 Ω points,
Ω is linked into balun.
Dielectric layer is the Rogers RO4350, thickness 0.25mm that dielectric constant is 3.66.
Marchand baluns are micro-strip-strip lines configuration, are advantageously integrated on dielectric-slab.
Each array element is made of two doublet units, can be reduced to 100 Ω by antenna impedance by 200 Ω.
The resistance value of resistive surface is 370 Ω/square, goes to realize opening up for bandwidth by introducing the method being lost on a small quantity
Exhibition.
The parameter designing process of ultra wide band close coupling array antenna of the present invention is as follows:
(1) optimize close coupling array antenna unit, determine the design parameter of antenna according to Antenna Operation frequency range first,
The mode that ADS equivalent circuits can be used in the structural parameters of closely coupled antennae is tentatively optimized.For single close coupling array list
Member is as shown in Fig. 3 (a), and dipole antenna is printed on vertical circuit board, correspondingly, the inductance of dipole corresponds to dipole arm
Wide hdipole, the capacitance between array element is by lap wcapIt is controlled.Height between antenna and floor is hsub, antenna
Dielectric passivation be hsup.Optimize the unit of close coupling array using the method for approximate equivalent circuit.For dielectric passivation
And medium substrate can be indicated under Floquet patterns by the Ideal Transmission Line of certain length.
As shown in Fig. 3 (b), the characteristic impedance of the air layer between dielectric coatings and floor and antenna is respectively ZsupWith
Zstub, the air characteristics impedance above dielectric coatings is Z0.β represents the propagation constant of every section of transmission line, and h is every section of transmission line
Length.
In online polarized array, when antenna is when the faces H carry out beam scanning, TE moulds are energized, when antenna in the faces E into traveling wave
When beam scanning, TM moulds be energized, the corresponding faces E, the faces H characteristic impedance can be by following formula:
Propagation constant is：
Wherein, 377 Ω of η ≈ are the characteristic impedance of free space, dEFor the cell spacing on the faces E, dHFor the unit on the faces H
Spacing, k0Indicate the wave number of ideal space, μrIt is the relative permeability of every layer of medium, εrFor the relative conductivity of every layer of medium, sweep
It is the angle with Z-direction to retouch angle, θ.
(2) pass through the capacitance C of ADS optimization antennascouplingWith inductance Ldipole, can be with by the calculation formula of capacity plate antenna
Calculate Wcap。LdipoleThe wide h of arm of transformation dipole can be passed throughdipoleIt is controlled.
The present embodiment devises the array antenna that a frequency range is 1.49GHz~15.65GHz, exists in antenna scanning
In the range of ± 60 °, antenna VSWR<3,8 × 8 arrays are formed, the gain of antenna is in 8GHz up to 16.8dB.
Fig. 4 is the voltage standing wave ratio of ultra wide band wide-angle closely coupled antennae of the present invention.The frequency range 1.49GHz of antenna~
In 15.65GHz, antenna carries out beam scanning, standing-wave ratio VSWR within the scope of ± 60 °<3, meet design objective.
Fig. 5 is the front view of 8 × 8 aerial arrays of the present invention, and the dipole radiation arm by extending edge cells goes to mend
Finite length effect caused by array edges is repaid, realizes impedance matching.
Fig. 6 is the maximum axial gain of ultra wide band wide-angle closely coupled antennae array of the present invention, and 8 × 8 array sizes are
80mm × 80mm, in 8GHz its on-axis gain up to 16.8dB.
Fig. 7 (a)~Fig. 7 (d) is ultra wide band wide-angle closely coupled antennae array of the present invention in 2GHz, 6GHz, 10GHz,
Beam scanning direction figure under 14GHz different frequent points.
In conclusion ultra wide band wide-angle close coupling array antenna of the present invention, using short dipole structure, by being added in
The mode of FSS can realize wideband wide scan.Antenna structure is all made of printed circuit metal with feed structure and carries out batch life
Production.
Claims (5)
1. a kind of ultra wide band close coupling array antenna, which is characterized in that include the array element of arrangement of multiple periods, each array
Unit includes two identical dipole antennas (a, b), first medium plate (d), second medium plate (c), frequency-selective surfaces
(e), two Marchand baluns (f), resistive surface (h), floor (i) and the power splitter (g) being set on the downside of floor；
Two dipole antennas are placed side by side, and each dipole antenna includes two that the two sides before and after two dielectric-slabs is arranged
Point；Covering frequence selection surface (e) above dipole antenna, frequency-selective surfaces (e) are arranged between two dielectric-slabs；
Marchand baluns (f) include strip line and microstrip line, and strip line is arranged between two dielectric-slabs, and microstrip line is arranged first
Dielectric-slab (d) surface；Two microstrip lines are connected by the power splitter (g) below floor (i)；Between dipole antenna and floor (i)
One layer of resistive surface (h) is set, and resistive surface (h) is parallel with floor, vertical with two dielectric-slabs.
2. ultra wide band close coupling array antenna according to claim 1, which is characterized in that the first medium plate (d),
Second medium plate (c) is the Rogers RO4350 of dielectric constant 3.66.
3. ultra wide band close coupling array antenna according to claim 2, which is characterized in that the first medium plate (d),
The thickness of second medium plate (c) is 0.25mm.
4. ultra wide band close coupling array antenna according to claim 1, which is characterized in that the brachium of two dipole antennas
There is lap two dielectric-slab both sides, forms coupled capacitor.
5. the ultra wide band close coupling array antenna according to Claims 1 to 4 any one, which is characterized in that resistive surface
(h) face resistance is 370 Ω/square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810222246.1A CN108682953A (en) | 2018-03-19 | 2018-03-19 | A kind of ultra wide bandwidth angle closely coupled antennae |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810222246.1A CN108682953A (en) | 2018-03-19 | 2018-03-19 | A kind of ultra wide bandwidth angle closely coupled antennae |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108682953A true CN108682953A (en) | 2018-10-19 |
Family
ID=63799300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810222246.1A Pending CN108682953A (en) | 2018-03-19 | 2018-03-19 | A kind of ultra wide bandwidth angle closely coupled antennae |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108682953A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546322A (en) * | 2018-12-12 | 2019-03-29 | 中国船舶重工集团公司第七二四研究所 | A kind of ultra wide bandwidth angle sweep and efficient matchings phased array antenna |
| CN109586021A (en) * | 2018-12-07 | 2019-04-05 | 上海交通大学 | Ultra wide band dual-linear polarization wide-angle scanning array antenna |
| CN110048221A (en) * | 2019-03-15 | 2019-07-23 | 上海交通大学 | Strip line network low section close coupling ultra wide band array antenna |
| CN110994197A (en) * | 2019-12-12 | 2020-04-10 | 电子科技大学 | Wide-angle conformal linear phased array antenna based on FSS structure |
| CN112201960A (en) * | 2020-09-30 | 2021-01-08 | 浙江大学 | Magnetic omnidirectional transparent material conforming to uniaxial perfect matching layer model |
| CN112636006A (en) * | 2020-11-30 | 2021-04-09 | Oppo广东移动通信有限公司 | Millimeter wave array antenna, housing assembly, and electronic device |
| CN113468844A (en) * | 2021-06-17 | 2021-10-01 | 浙江大学 | Coupled array beam comprehensive analysis method |
| CN113764879A (en) * | 2021-08-31 | 2021-12-07 | 南京理工大学 | Low-profile ultra-wideband antenna based on resistive super-surface |
| CN114006165A (en) * | 2021-10-25 | 2022-02-01 | 南京航空航天大学 | Ultra-wideband tightly-coupled antenna array with bandwidth expanded by resistor discs |
| CN114221117A (en) * | 2021-12-02 | 2022-03-22 | 北京理工大学 | Low-profile broadband wide-angle array antenna based on multistage resonance structure |
| CN114421148A (en) * | 2022-01-24 | 2022-04-29 | 杭州湃腾科技有限公司 | Dual-polarized ultra-wideband wide-angle tightly-coupled array antenna |
| CN114927866A (en) * | 2022-05-31 | 2022-08-19 | 南京理工大学 | Ultra-wideband tightly-coupled phased array antenna with unequal interval arrangement |
| CN115064864A (en) * | 2022-08-18 | 2022-09-16 | 南京天朗防务科技有限公司 | Full-polarization antenna unit and antenna array |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014011675A1 (en) * | 2012-07-09 | 2014-01-16 | The Ohio State University | Ultra-wideband extremely low profile wide angle scanning phased array with compact balun and feed structure |
| CN107275775A (en) * | 2017-06-23 | 2017-10-20 | 西安电子科技大学 | Ultra wide band array antenna |
| CN107331977A (en) * | 2017-06-28 | 2017-11-07 | 电子科技大学 | The strong mutual coupling phased array antenna of the low RCS ultra wide bandwidths angle sweep of low section based on polarization conversion material |
-
2018
- 2018-03-19 CN CN201810222246.1A patent/CN108682953A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014011675A1 (en) * | 2012-07-09 | 2014-01-16 | The Ohio State University | Ultra-wideband extremely low profile wide angle scanning phased array with compact balun and feed structure |
| CN107275775A (en) * | 2017-06-23 | 2017-10-20 | 西安电子科技大学 | Ultra wide band array antenna |
| CN107331977A (en) * | 2017-06-28 | 2017-11-07 | 电子科技大学 | The strong mutual coupling phased array antenna of the low RCS ultra wide bandwidths angle sweep of low section based on polarization conversion material |
Non-Patent Citations (3)
| Title |
|---|
| ERSIN YETISIR, MEMBER, NIMA GHALICHECHIAN, SENIOR MEMBER,: "Ultrawideband Array With 70° Scanning", 《IEEE》 * |
| JONATHAN P. DOANE, MEMBER, IEEE, KUBILAY SERTEL, SENIOR MEMBER,: "A Wideband, Wide Scanning Tightly Coupled Dipole", 《IEEE》 * |
| 刘爽 张帅 龚书喜: "一种超宽带紧耦合天线设计", 《微波学报》 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586021A (en) * | 2018-12-07 | 2019-04-05 | 上海交通大学 | Ultra wide band dual-linear polarization wide-angle scanning array antenna |
| CN109546322A (en) * | 2018-12-12 | 2019-03-29 | 中国船舶重工集团公司第七二四研究所 | A kind of ultra wide bandwidth angle sweep and efficient matchings phased array antenna |
| CN110048221A (en) * | 2019-03-15 | 2019-07-23 | 上海交通大学 | Strip line network low section close coupling ultra wide band array antenna |
| CN110994197A (en) * | 2019-12-12 | 2020-04-10 | 电子科技大学 | Wide-angle conformal linear phased array antenna based on FSS structure |
| CN112201960A (en) * | 2020-09-30 | 2021-01-08 | 浙江大学 | Magnetic omnidirectional transparent material conforming to uniaxial perfect matching layer model |
| CN112636006A (en) * | 2020-11-30 | 2021-04-09 | Oppo广东移动通信有限公司 | Millimeter wave array antenna, housing assembly, and electronic device |
| CN112636006B (en) * | 2020-11-30 | 2024-03-08 | Oppo广东移动通信有限公司 | Millimeter wave array antenna, housing assembly and electronic device |
| CN113468844B (en) * | 2021-06-17 | 2023-08-04 | 浙江大学 | Analysis method for coupling array wave beam synthesis |
| CN113468844A (en) * | 2021-06-17 | 2021-10-01 | 浙江大学 | Coupled array beam comprehensive analysis method |
| CN113764879A (en) * | 2021-08-31 | 2021-12-07 | 南京理工大学 | Low-profile ultra-wideband antenna based on resistive super-surface |
| CN114006165A (en) * | 2021-10-25 | 2022-02-01 | 南京航空航天大学 | Ultra-wideband tightly-coupled antenna array with bandwidth expanded by resistor discs |
| CN114006165B (en) * | 2021-10-25 | 2023-02-07 | 南京航空航天大学 | Ultra-wideband tightly-coupled antenna array with bandwidth expanded by resistor discs |
| CN114221117A (en) * | 2021-12-02 | 2022-03-22 | 北京理工大学 | Low-profile broadband wide-angle array antenna based on multistage resonance structure |
| CN114421148A (en) * | 2022-01-24 | 2022-04-29 | 杭州湃腾科技有限公司 | Dual-polarized ultra-wideband wide-angle tightly-coupled array antenna |
| CN114421148B (en) * | 2022-01-24 | 2023-12-22 | 杭州湃腾科技有限公司 | Dual-polarized ultra-wide bandwidth angle tight coupling array antenna |
| CN114927866A (en) * | 2022-05-31 | 2022-08-19 | 南京理工大学 | Ultra-wideband tightly-coupled phased array antenna with unequal interval arrangement |
| CN114927866B (en) * | 2022-05-31 | 2024-06-07 | 南京理工大学 | Ultra-wideband tightly-coupled phased array antenna with unequal interval arrangement |
| CN115064864A (en) * | 2022-08-18 | 2022-09-16 | 南京天朗防务科技有限公司 | Full-polarization antenna unit and antenna array |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108682953A (en) | A kind of ultra wide bandwidth angle closely coupled antennae | |
| Liu et al. | A meta-surface decoupling method for two linear polarized antenna array in sub-6 GHz base station applications | |
| CN110085975B (en) | Wing-borne low-scattering ultra-wideband conformal phased array based on strong coupling effect | |
| CN107086369B (en) | Low RCS broadband wide-angle scanning phased array antenna based on strong mutual coupling effect | |
| CN108987911A (en) | A kind of millimeter wave wave beam forming micro-strip array antenna and design method based on SIW | |
| CN106848554A (en) | A kind of ultra wide bandwidth angle antenna array based on interdigitated coupled dipole unit | |
| CN107591623B (en) | Broadband and wide-angle scanning phased array antenna based on decoupling metal wall | |
| CN105958191B (en) | Dual polarization high-gain mimo antenna based on aperiodic Artificial magnetic conductor structure | |
| US10862218B2 (en) | Vivaldi notch waveguide antenna | |
| CN107732445A (en) | A kind of millimeter wave circular polarised array antenna and its radiant body | |
| CN112751184B (en) | Phased array antenna with high radiation efficiency and low scattering characteristic | |
| CN207559068U (en) | Low gain low sidelobe micro-base station antenna | |
| CN102110905A (en) | Omnidirectional wideband high gain antenna | |
| CN108879086A (en) | A kind of Compact type broadband micro-strip paster antenna with harmonics restraint | |
| CN108511924A (en) | A kind of broadband end-on-fire antenna array for millimeter-wave communication system | |
| CN108598691A (en) | Scanning Phased Array Antenna with Broadband based on the long slot antenna of tablet | |
| CN108539435A (en) | Scanning Phased Array Antenna with Broadband based on slot antenna and frequency-selective surfaces | |
| CN107069232A (en) | The RCS reducing techniques of micro-strip paster antenna | |
| CN108493596B (en) | A kind of antenna and aerial array | |
| CN108777355A (en) | A kind of low section broad-band antenna | |
| CN106972249A (en) | Novel ultra wide band high-gain anti-pode Vivaldi antenna | |
| CN207938805U (en) | A kind of plane close coupling bipolar ultra wide band phased array antenna | |
| CN207282711U (en) | A kind of millimeter wave circular polarised array antenna and its radiator | |
| CN213692328U (en) | Microstrip antenna | |
| CN112201952B (en) | Broadband large-inclination-angle low-sidelobe microstrip array antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181019 |
|
| RJ01 | Rejection of invention patent application after publication |