CN110112574A - A kind of restructural ultra wide band array antenna - Google Patents
A kind of restructural ultra wide band array antenna Download PDFInfo
- Publication number
- CN110112574A CN110112574A CN201910404262.7A CN201910404262A CN110112574A CN 110112574 A CN110112574 A CN 110112574A CN 201910404262 A CN201910404262 A CN 201910404262A CN 110112574 A CN110112574 A CN 110112574A
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- metal
- wide band
- ultra wide
- array antenna
- 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
- 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
-
- 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
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention discloses a kind of restructural ultra wide band array antenna, and 9 dual polarization plane dipole antenna units are according to 3 row, 3 column distribution on dielectric substrate；Dual polarization plane dipole antenna unit includes two feed ports, 4 metal patches around feed port, two metal patches of lateral two metal patches and longitudinal direction pass through a feed port connection respectively, in second row, in addition to intermediate two neighboring transverse metal patch, switch is provided between remaining adjacent transverse metal patch；In secondary series, in addition to intermediate two neighboring longitudinal metal patch, switch is provided between remaining adjacent longitudinal metal patch；The lower surface of dielectric substrate is provided with capacitive coupling sheet metal, capacitive coupling sheet metal two metal patches lower section close to each other between two adjacent dual polarization plane dipole antenna units.The present invention has the advantages that can meet the needs of radio ultra wide band system is to antenna with the bandwidth of number reconfigurable antenna few as far as possible.
Description
Technical field
The present invention relates to field of antenna, and in particular to a kind of restructural ultra wide band array antenna.
Background technique
With on the platforms such as spaceborne, balloon borne, airborne and carrier-borne, radar, electronic warfare, communication, navigation for needing to realize etc.
Function is more and more, and each platform antenna quantity is caused to be significantly increased.This just brings problems, including antenna mutual interference, electromagnetism
The increase of interference and radar scattering area, and maintenance issues relevant to multiplicated system.The growing function of above system
Demand, to the valuable antenna resources of existing platform, more stringent requirements are proposed.All kinds of equipment platforms including electronic countermeasure
Synthesis radio frequency system, the antenna element being required in system and array realize shared aperture.Antenna in order to meeting simultaneously
Modern military communication, radar function design requirement, should often guarantee required wide-band and high-gain performance, again in pole
To realize the individual demands such as small size, low section and high reliability in limited space.Above-mentioned requirements are set in conventional antenna
Implement highly difficult, especially ultrabroad band and multipolarization characteristic in meter, but reconfigurable antenna technology is by reconfigurable function,
The demand can preferably be met, become following important one of the solution route.
The basic thought of reconfigurable antenna, which is antenna aperature, can be configured to different structure, and real-time decomposition for different application
At multiple independent sectors, this requires the different locations of antenna array to be configured to different frequency range.To deeply grinding for reconfigurable antenna
Study carefully, makes antenna system is interior in a limited space to obtain bigger gain while substantially increasing spatial degrees of freedom, and be greatly improved
The transmission rate and power system capacity of wireless system.In addition, the active devices such as reconfigurable antenna and mems switch, PIN diode
It integrates, reduces the volume and weight of antenna, be easier to antenna conformal, improve the overall performance of system.
Antenna frequencies at present it is restructural be all by loaded switches, load variable reactive element, change mechanical structure or
Person changes material property and changes the electrical length of antenna to realize, known frequency reconfigurable antenna is all based on narrowband both at home and abroad
What antenna element carried out, single bandwidth is no more than 50%, although total working frequency can reach 3:1 or more, being in band is
Multiple-frequency operation is not able to satisfy the job requirement of all standing of entire superwide range.If realizing the work of 20:1 or more
It is required that the number for needing to reconstruct is too many, work is complicated, and design difficulty is very big.
Summary of the invention
The technical problem to be solved by the present invention is the problem of ultra wide band array antenna reconstructs often in the prior art.
In order to solve the above technical problems, the technical solution used in the present invention is: a kind of restructural ultra wide band array antenna,
Including dielectric substrate, the upper surface of dielectric substrate is provided with 9 dual polarization plane dipole antenna units, 9 dual polarization planes
Dipole antenna unit is according to 3 row, 3 column distribution on dielectric substrate；
Each dual polarization plane dipole antenna unit includes 4 metal patches, two feed ports, 4 metal patches
It is located at around feed port, and two lateral metal patches are connected by one of feed port, longitudinal two
A metal patch is connected by another feed port；
In second row, in addition to the metal patch of intermediate two adjacent transverse directions, remaining adjacent lateral metal patch it
Between be provided with switch；
In secondary series, in addition to the metal patch of intermediate two adjacent longitudinal directions, remaining adjacent longitudinal metal patch it
Between be provided with switch；
The lower surface of the dielectric substrate is provided with capacitive coupling sheet metal, and capacitive coupling sheet metal is located at adjacent two
Between dual polarization plane dipole antenna unit below two metal patches close to each other.
The restructural ultra wide band array antenna of one of present invention, each dual polarization plane dipole antenna unit include two
A polarization, each polarization includes two metal patches and a feed port, and there are two kinds for the restructural ultra wide band array antenna
Working condition, in running order a period of time all switches are in the conductive state, at this time only intermediate dual polarization plane dipole
Antenna element is fed, remaining feed port is in load state or disconnection, remaining dual polarization plane dipole antenna unit is made
It participates in radiating for parasitic patch, for entire Antenna Operation under low frequency state, which is (f1/3,f2It/3), and can be real
Existing bidimensional ± 45 ° scanning；All switches are in an off state when in running order two, at this time all dual polarization plane dipoles
Antenna element is fed, and entire antenna reverts to 9 array antennas, and antenna works under high frequency state, working band
For (f1,f2), and can realize that bidimensional ± 45 ° are scanned.If f2=3f1, which can cover frequency range (f1/
3, f2).Compared with prior art, the restructural ultra wide band array antenna in the present invention makes antenna system in super large bandwidth with to the greatest extent
The bandwidth for measuring few number reconfigurable antenna, meets the needs of radio ultra wide band system is to antenna.
Optimization, the dielectric substrate material is FR4.
Optimization, the dielectric substrate is rectangle.
Optimization, the metal patch is pentagon, and the tip of metal patch is directed toward feed port.
Optimization, the metal patch is copper foil.
Optimization, the feed port is rectangle.
Optimization, the switch is mems switch, and mems switch realizes conducting and off-state by electrostatic drive
Switching has many advantages, such as low-power consumption, easy of integration, and inventive antenna is by the method for mems switch broadening bandwidth to primary antenna work
State influence is small, and reusable primary antenna rear end feeding network and channel.
Optimization, the capacitive coupling sheet metal is rectangle.
Optimization, the capacitive coupling sheet metal is copper foil.
Optimization, the metal patch is adhesively attached to the upper surface of dielectric substrate, the attachment of capacitive coupling metal bonding film
In the lower surface of dielectric substrate.
The beneficial effects of the present invention are:
1. the restructural ultra wide band array antenna of one of present invention, each dual polarization plane dipole antenna unit include
Two polarization, each polarization includes two metal patches and a feed port, and there are two for the restructural ultra wide band array antenna
Kind working condition, in running order a period of time all switches are in the conductive state, at this time only intermediate dual polarization plane dipole
Sub-antenna unit is fed, remaining feed port is in load state or disconnection, remaining dual polarization plane dipole antenna unit
It participates in radiating as parasitic patch, for entire Antenna Operation under low frequency state, which is (f1/3,f2It/3), and can
Realize bidimensional ± 45 ° scanning；All switches are in an off state when in running order two, at this time all dual polarization plane dipoles
Sub-antenna unit is fed, and entire antenna reverts to 9 array antennas, and antenna works under high frequency state, work frequency
Band is (f1,f2), and can realize that bidimensional ± 45 ° are scanned.If f2=3f1, which can cover frequency range
(f1/ 3, f2).Compared with prior art, the restructural ultra wide band array antenna in the present invention makes antenna system in super large bandwidth
With the bandwidth of number reconfigurable antenna few as far as possible, meets the needs of radio ultra wide band system is to antenna.
2.MEMS switchs the switching that conducting and off-state are realized by electrostatic drive, has low-power consumption, easy of integration etc.
Advantage, inventive antenna is small on the influence of primary antenna working condition by the method that mems switch broadens bandwidth, and reusable original day
Line back end feeding network and channel.
Detailed description of the invention
Fig. 1 is a kind of top view of restructural ultra wide band array antenna in the embodiment of the present invention；
Fig. 2 is a kind of main view of restructural ultra wide band array antenna in the embodiment of the present invention；
Fig. 3 is a kind of restructural in running order a period of time antenna scanning shape of ultra wide band array antenna in the embodiment of the present invention
The active standing wave of state；
Fig. 4 is a kind of restructural in running order a period of time aerial radiation side of ultra wide band array antenna in the embodiment of the present invention
Xiang Tu；
Fig. 5 be in the embodiment of the present invention a kind of restructural ultra wide band array antenna it is in running order two when antenna scanning shape
The active standing wave of state；
Fig. 6 be in the embodiment of the present invention a kind of restructural ultra wide band array antenna it is in running order two when aerial radiation side
Xiang Tu；
Wherein, dielectric substrate -1, dual polarization plane dipole antenna unit -2, switch -3, capacitive coupling sheet metal -4, gold
Belong to patch -21, feed port -22.
Specific embodiment
The present invention is described in detail below in conjunction with attached drawing.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term " on ", "lower" is base
In orientation or positional relationship shown in the drawings, it is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of invention.
As shown in Figure 1, a kind of restructural ultra wide band array antenna, including dielectric substrate 1, the upper surface of dielectric substrate 1 are set
9 dual polarization plane dipole antenna units, 2,9 dual polarization plane dipole antenna units 2 are equipped with to exist according to 3 row, 3 column distribution
On dielectric substrate 1.
For ease of description and understand, according to state shown in FIG. 1, with right (arragement direction arranged) for x, top is (i.e.
Capable arragement direction) it is y, the dual polarization plane dipole antenna unit 2 of corresponding position is numbered, such as the second row third arranges
Dual polarization plane dipole antenna unit 2 number be #32, intermediate dual polarization plane dipole antenna unit 2 be #22.
As shown in Figure 1, each dual polarization plane dipole antenna unit 2 includes 4 metal patches, 21, two feed ports
22,4 metal patches 21 are located at around feed port 22, and two lateral metal patches 21 pass through one of feedback
Electric port 22 connects, and forms x polarization, and two longitudinal metal patches 21 are connected by another feed port 22, forms the pole y
Change, feed port 22 is that metal patch 21 is fed, and metal patch 21 is to space radiated electromagnetic wave.
In second row, in addition to the metal patch 21 of intermediate two adjacent transverse directions, remaining adjacent lateral metal patch
Switch 3 is provided between 21, specifically, between polarized two metal patches 21 of the x of #12, polarized two gold of x of #32
Belong to two between two metal patches 21 between patch 21, close to each other in #12 and #22, close to each other in #22 and #32
Switch 3 is provided between metal patch 21.
In secondary series, in addition to the metal patch 21 of intermediate two adjacent longitudinal directions, remaining adjacent longitudinal metal patch
Switch 3 is provided between 21, specifically, between polarized two metal patches 21 of the y of #21, polarized two gold of y of #23
Belong to two between two metal patches 21 between patch 21, close to each other in #21 and #22, close to each other in #22 and #23
Switch 3 is provided between metal patch 21.
In conjunction with Fig. 1,2, the lower surface of the dielectric substrate 1 is provided with capacitive coupling sheet metal 4, to enhance coupling between array element
It closes, two gold close to each other between two adjacent dual polarization plane dipole antenna units 2 of capacitive coupling sheet metal 4
Belong to 21 lower section of patch, is also provided with capacitive coupling sheet metal 4 below the metal patch 21 at 1 edge of dielectric substrate, this capacitive coupling
Alloy piece 4 is half block, when two restructural ultra wide band array antennas splice, corresponding two half block capacitive couplings sheet metal 4
A complete capacitive coupling sheet metal 4 can be synthesized.
1 material of dielectric substrate is FR4, FR4, that is, glass-epoxy copper-clad plate, and the dielectric of dielectric substrate 1 is normal
Number is 4.4, and the dielectric substrate 1 is rectangle, and the metal patch 21 is pentagon, and pentagon is the shape after optimization, effect
Preferably, the tip of metal patch 21 is directed toward feed port 22, and the metal patch 21 is copper foil, and the feed port 22 is square
Shape, the switch 3 are mems switch, and mems switch is the prior art, and market is bought, and the capacitive coupling sheet metal 4 is
The copper foil of rectangle.
In conjunction with Fig. 1,2, the metal patch 21 is adhesively attached to the upper surface of dielectric substrate 1, and capacitive coupling sheet metal 4 is viscous
Connect the lower surface for being attached to dielectric substrate 1.
Working principle:
The restructural ultra wide band array antenna of one of present invention, each dual polarization plane dipole antenna unit 2 include
Two polarization, each polarization include two metal patches 21 and a feed port 22.
There are two kinds of working conditions for the restructural ultra wide band array antenna:
In in running order a period of time, all switches 3 are in the conductive state, at this time only intermediate dual polarization plane dipole
Antenna element 2 is fed, remaining feed port 22 is in load state or disconnection, remaining dual polarization plane dipole antenna unit
2 participate in radiating as parasitic patch, and for entire Antenna Operation under low frequency state, which is (f1/3,f2/ 3), and
Bidimensional ± 45 ° scanning can be achieved, the restructural ultra wide band array antenna works in 0.8-2GHz frequency band, such as Fig. 3,4 difference
For the restructural in running order active standing wave of a period of time antenna scanning state of ultra wide band array antenna a kind of in the embodiment of the present invention
And the in running order a period of time radiation pattern of antenna.
When in running order two, all switches 3 are in an off state, at this time all dual polarization plane dipole antenna lists
Member 2 is fed, and entire antenna reverts to 9 array antennas, and antenna works under high frequency state, and working band is (f1,
f2), and can realize that bidimensional ± 45 ° are scanned, the restructural ultra wide band array antenna works in 2-6GHz frequency band, such as Fig. 5,6
Antenna scanning state active standing wave when in running order for restructural ultra wide band array antenna a kind of in the embodiment of the present invention two
And antenna it is in running order two when radiation pattern.
If f2=3f1, which can cover frequency range (f1/ 3, f2).Compared with prior art, originally
Restructural ultra wide band array antenna in invention makes band of the antenna system in super large bandwidth with number reconfigurable antenna few as far as possible
Width meets the needs of radio ultra wide band system is to antenna.
The restructural ultra wide band array antenna can realize that working band covers 0.8-6GHz, and antenna form is dual polarization,
And realize bidimensional ± 45 ° scanning, when scanning, active standing-wave ratio was less than 2.5.
Mems switch realizes conducting and the switching of off-state by electrostatic drive, has low-power consumption, easy of integration etc. excellent
Point, inventive antenna is small on the influence of primary antenna working condition by the method that mems switch broadens bandwidth, and reusable primary antenna
Rear end feeding network and channel.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of restructural ultra wide band array antenna, it is characterised in that: including dielectric substrate (1), the upper surface of dielectric substrate (1)
9 dual polarization plane dipole antenna units (2) are provided with, 9 dual polarization plane dipole antenna units (2) arrange according to 3 rows 3
It is distributed on dielectric substrate (1)；
Each dual polarization plane dipole antenna unit (2) includes 4 metal patches (21), two feed ports (22), 4 gold
Belong to patch (21) to be located at around feed port (22), and two lateral metal patches (21) pass through one of feed
Port (22) connection, two longitudinal metal patches (21) are connected by another feed port (22)；
In second row, in addition to the metal patch (21) of intermediate two adjacent transverse directions, remaining adjacent lateral metal patch
(21) switch (3) are provided between；
In secondary series, in addition to the metal patch (21) of intermediate two adjacent longitudinal directions, remaining adjacent longitudinal metal patch
(21) switch (3) are provided between；
The lower surface of the dielectric substrate (1) is provided with capacitive coupling sheet metal (4), and capacitive coupling sheet metal (4) is located at adjacent
Two dual polarization plane dipole antenna units (2) between below two metal patches (21) close to each other.
2. a kind of restructural ultra wide band array antenna according to claim 1, it is characterised in that: the dielectric substrate (1)
Material is FR4.
3. a kind of restructural ultra wide band array antenna according to claim 1, it is characterised in that: the dielectric substrate (1)
For rectangle.
4. a kind of restructural ultra wide band array antenna according to claim 1, it is characterised in that: the metal patch (21)
Tip for pentagon, metal patch (21) is directed toward feed port (22).
5. a kind of restructural ultra wide band array antenna according to claim 1, it is characterised in that: the metal patch (21)
For copper foil.
6. a kind of restructural ultra wide band array antenna according to claim 1, it is characterised in that: the feed port (22)
For rectangle.
7. a kind of restructural ultra wide band array antenna according to claim 1, it is characterised in that: the switch (3) is
Mems switch.
8. a kind of restructural ultra wide band array antenna according to claim 1, it is characterised in that: the capacitive coupling metal
Piece (4) is rectangle.
9. a kind of restructural ultra wide band array antenna according to claim 1, it is characterised in that: the capacitive coupling metal
Piece (4) is copper foil.
10. a kind of restructural ultra wide band array antenna according to claim 1, it is characterised in that: the metal patch
(21) it is adhesively attached to the upper surface of dielectric substrate (1), capacitive coupling sheet metal (4) is adhesively attached under dielectric substrate (1)
Surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910404262.7A CN110112574B (en) | 2019-05-15 | 2019-05-15 | Reconfigurable ultra-wideband array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910404262.7A CN110112574B (en) | 2019-05-15 | 2019-05-15 | Reconfigurable ultra-wideband array antenna |
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| Publication Number | Publication Date |
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| CN110112574A true CN110112574A (en) | 2019-08-09 |
| CN110112574B CN110112574B (en) | 2020-09-29 |
Family
ID=67490306
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| CN201910404262.7A Active CN110112574B (en) | 2019-05-15 | 2019-05-15 | Reconfigurable ultra-wideband array antenna |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110635250A (en) * | 2019-09-12 | 2019-12-31 | 中国电子科技集团公司第三十八研究所 | VHF wave band tightly-coupled planar dipole array antenna |
| CN110718770A (en) * | 2019-09-29 | 2020-01-21 | 山西大学 | Full-polarization reconfigurable MIMO antenna |
| CN110797638A (en) * | 2019-10-21 | 2020-02-14 | 中国电子科技集团公司第三十六研究所 | Low-profile millimeter wave printed board antenna array |
| CN112615166A (en) * | 2020-11-24 | 2021-04-06 | 中国电子科技集团公司第三十八研究所 | Modularized array antenna capable of simultaneously reconfiguring frequency, aperture and polarization and using method |
| CN113131188A (en) * | 2021-04-20 | 2021-07-16 | 上海航天测控通信研究所 | Multi-star assembled antenna device |
| CN114171910A (en) * | 2021-12-10 | 2022-03-11 | 合肥师范学院 | Broadband polarization and directional diagram mixed reconfigurable antenna |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635250A (en) * | 2019-09-12 | 2019-12-31 | 中国电子科技集团公司第三十八研究所 | VHF wave band tightly-coupled planar dipole array antenna |
| CN110718770A (en) * | 2019-09-29 | 2020-01-21 | 山西大学 | Full-polarization reconfigurable MIMO antenna |
| CN110797638A (en) * | 2019-10-21 | 2020-02-14 | 中国电子科技集团公司第三十六研究所 | Low-profile millimeter wave printed board antenna array |
| CN112615166A (en) * | 2020-11-24 | 2021-04-06 | 中国电子科技集团公司第三十八研究所 | Modularized array antenna capable of simultaneously reconfiguring frequency, aperture and polarization and using method |
| CN113131188A (en) * | 2021-04-20 | 2021-07-16 | 上海航天测控通信研究所 | Multi-star assembled antenna device |
| CN114171910A (en) * | 2021-12-10 | 2022-03-11 | 合肥师范学院 | Broadband polarization and directional diagram mixed reconfigurable antenna |
| CN114171910B (en) * | 2021-12-10 | 2023-11-17 | 合肥师范学院 | Broadband polarization and directional diagram mixed reconfigurable antenna |
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| Publication number | Publication date |
|---|---|
| CN110112574B (en) | 2020-09-29 |
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