CN107342456A - A kind of minimized wide-band wave beam restructural radar antenna - Google Patents
A kind of minimized wide-band wave beam restructural radar antenna Download PDFInfo
- Publication number
- CN107342456A CN107342456A CN201710475876.5A CN201710475876A CN107342456A CN 107342456 A CN107342456 A CN 107342456A CN 201710475876 A CN201710475876 A CN 201710475876A CN 107342456 A CN107342456 A CN 107342456A
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- biconial
- radiating element
- restructural
- wave beam
- circular
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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
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention relates to a kind of minimized wide-band wave beam restructural radar antenna, including circular media substrate, metal floor, feeds disk；Feed disk periphery is full of concentric circular patch；The periphery of circular patch is provided with biconial radiating element, and biconial radiating element is four, and four biconial radiating element annulars are evenly distributed on circular media substrate；Metal substrate is connected with feed disk by being located at the coaxial feeder of circular media substrate center；Biconial radiating element and circular patch are respectively equipped with open rectangular channel on the floor of biconial radiating element both sides, the 2nd PIN switches are loaded with described open rectangular channel by the first PIN switch connections.Solve current planar directional pattern reconfigurable antenna by the crack method of loading PIN switches of floor wide-angle scanning can only be carried out during the scanning for covering a certain plane the technical problem of low-angle adjustment can not be carried out to the beam direction under every kind of restructural state realizing.
Description
Technical field
The invention belongs to antenna technical field, is related to a kind of minimized wide-band wave beam restructural radar antenna, available for nothing
Line communicates, intelligent transportation, in the system such as radar identification and detection.
Background technology
In radio systems, the demand of wave beam adjustable antenna is more and more, such as satellite communication, remote sensing, base station, it is vehicle-mounted and
Airborne radar etc..It is to use phased array antenna technology to realize the adjustable traditional approach of antenna beam.Although phased array antenna technology
Big beam-scanning angles and high directionality can be realized, but phased array antenna needs complicated feeding network, volume Pang
Greatly, it is unfavorable for being arranged on the mobile communication equipment such as automobile, aircraft and realizes the miniaturization of system.And with communications band
Rise, and the development of the technology such as 5G high-speed communications, radar frequency band such as Ku, Ka are more favored by the communications industry, traditional phase
It is more and more expensive with the rise price of frequency to control the circuit blocks such as the phase shifter of array antenna so that the cost of whole system increases
Add.
" reconfigurable antenna " is suggested the 1980s, until high performance microwave PIN swtich in recent years, electronic machine
Tool（MEMS）The development of switch and reactance component, reconfigurable antenna are just further furtherd investigate.Reconfigurable antenna can divide
For three classes, i.e. frequency reconfigurable, directional diagram reconstructable and polarization reconfigurable antenna.Wherein directional diagram reconstructable aerial, Ke Yi
In the case of not changing antenna self structure and working frequency, the states of controllable devices in antenna is integrated in by control to control
CURRENT DISTRIBUTION on antenna radiator, so as to control the beam direction of antenna or beam angle, realize that wave beam is adjustable or ripple
Scanning of the beam in certain space.Therefore wave beam reconfigurable antenna is compared to phased array antenna, without the feeding network of complexity, tool
There is small volume, in light weight, low cost, the advantages that being readily applied to mobile vehicle.
Planar directional pattern reconfigurable antenna realizes that the scanning of wave beam all standing in certain space mainly utilizes at present
The principle of yagi aerial, the connection status between each radiant body and floor is controlled by PIN switches（That is open circuit or short circuit）, make
Radiant body, so as to change the main radiation direction of antenna, realizes the scanning of wave beam as dricetor element or reflector element.Such as document
M. Jusoh, T. Aboufoul, T. Sabapathy, A. Alomainy, M. Kamarudin, “Pattern-
reconfigurable microstrip patch antenna with multidirectional beam for WiMAX
application,” IEEE Antennas and Wireless Propagation Letters, vol. 13, pp. 860–863, April 2014, antenna is made up of the symmetrical circular radiation body of apex drive disk and surrounding four, passes through
Controlling the connection status on ambient radiation body and floor, it is possible to achieve directional diagram is in θ=22o planes, and φ is respectively in 45 o, and 135
O, 225 o, the scanning of 315 o four directions.But the antenna operating band is narrower, relative bandwidth is only 1.2%, and five
Circular radiation patch radius is larger, is unfavorable for the miniaturization of antenna.And for example document M. S. Alam and A. Abbosh,
‘‘Planar pattern reconfigurable antenna with eight switchable beams for WiMax
and WLAN applications,’’ IET Microw., Antennas Propag., vol. 10, no. 10, pp. 1030–1035, Jul. 2016, the antenna forms by apex drive disk and around eight Radial stubs of disk, passes through control
Connection status between conical lower portion processed and floor, realize in θ=36o planes, φ respectively in 0 o, 45 o, 90 o, 135 o,
180o, 225 o, 270 o, the beam scanning in 315 eight directions of o.But the Antenna Operation is in 2.35-2.61GHz, opposite band
Wide is only 5.2%, and gain is only 4.5dBi.And in two above example, antenna can only realize wide-angle in certain plane
Scanning, it is impossible to the scanning angle adjustment of small range is carried out under every kind of restructural state, can not realize that more accurate target is visited
Survey.
The content of the invention
The defects of it is an object of the invention to overcome above-mentioned prior art to exist, propose to load PIN by cracking to floor
The method of switch, solving current planar directional pattern reconfigurable antenna can only be carried out when realizing the scanning for covering a certain plane
Wide-angle scans and the technical problem of low-angle adjustment can not be carried out to the beam direction under every kind of restructural state.
To reach above-mentioned purpose, the present invention uses following technical scheme, a kind of minimized wide-band wave beam restructural radar day
Line, including circular media substrate, be located at the metal floor of circular media base lower surface, be located at circular media upper surface of base plate and
Positioned at the feed disk of circular media substrate center；Described feed disk periphery is full of concentric circular patch；It is described
The periphery of circular patch be provided with biconial radiating element, described biconial radiating element is four, four biconial spokes
Unit annular is penetrated to be evenly distributed on circular media substrate, and four mutual Central Symmetries of biconial radiating element；Described
Metal substrate is connected with feed disk by being located at the coaxial feeder of circular media substrate center；Described biconial radiating element
Pass through the first PIN switch connections with circular patch.
Open rectangular channel, described open rectangular channel are respectively equipped with the floor of the both sides of described biconial radiating element
The 2nd PIN switches are inside loaded with, by controlling the 2nd PIN to switch on-off, make antenna real under each restructural state respectively
The small range deflection of existing wave beam.
Described biconial radiating element is formed by two cone of radiation units are relative.
Described the 2nd PIN switches are located at biconial radiating element both sides on one article of side of open rectangular channel
Open rectangular channel in the 2nd PIN switch be symmetrically set.
The beneficial effects of the invention are as follows：
1st, the present invention can enter due to being loaded with concentric matching annulus outside feed disk with existing in certain plane
The planar directional pattern reconfigurable antenna of row comprehensive scanning brings up to 51.7% compared to relative bandwidth.
2nd, the present invention allows antenna to exist using the method opened open rectangular channel on floor and install PIN switches in groove
The small range deflection of wave beam is realized under the restructural state of each wave beam wide-angle scanning.
Brief description of the drawings
Fig. 1 is the overall structure figure front view of the embodiment of the present invention；
Fig. 2 is the overall structure figure side view of the embodiment of the present invention；
Fig. 3 is the PIN on off states of the embodiment of the present invention and its corresponding greatest irradiation direction；
Fig. 4 is the stationary wave characteristic analogous diagram of the embodiment of the present invention；
Fig. 5 is that four wide-angles of the embodiment of the present invention scan restructural state MODE1-MODE4 antenna pattern；
Fig. 6-1 is the restructural state MODE1 of the embodiment of the present invention and its antenna pattern of corresponding low-angle wave beam deflection；
Fig. 6-2 is scanning restructural state MODE2 and its radiation side of corresponding low-angle wave beam deflection of the embodiment of the present invention
Xiang Tu；
Fig. 6-3 is the restructural state MODE3 of the embodiment of the present invention and its antenna pattern of corresponding low-angle wave beam deflection；
Fig. 6-4 is the restructural state MODE4 of the embodiment of the present invention and its radiation direction of corresponding low-angle wave beam deflection
Figure,.
In figure：1. feed disk；2. annular paster；3. biconial radiating element；4. circular media floor；5. metal
Plate；6. open rectangular channel；7. coaxial feeder；8. the first PIN is switched；9. the 2nd PIN is switched.
Embodiment
Lower combination the drawings and specific embodiments, are further described to the purpose of the present invention, technical scheme and technique effect,
It should be appreciated that specific embodiment described herein is only used for explanation of the invention, limitation of the present invention is not intended as.
Embodiment
A kind of minimized wide-band wave beam restructural radar antenna as illustrated in fig. 1 and 2, including circular media substrate 4, are located at
The metal floor 5 of the lower surface of circular media substrate 4, it is located at the upper surface of circular media substrate 4 and is located at the center of circular media substrate 4
Feed disk 1；It is full of concentric circular patch 2 in described feed disk 1 periphery；The periphery of described circular patch 2
Provided with biconial radiating element 3, described biconial radiating element 3 is four, and the annular of four biconial radiating elements 3 is uniformly
It is distributed on circular media substrate 4, and four biconial radiating elements, the 3 mutual Central Symmetry；Described metal substrate 5 and feedback
Electric disk 1 is connected by being located at the coaxial feeder 7 at the center of circular media substrate 4；Described biconial radiating element 3 pastes with circular
Piece 2 is connected by the first PIN switches 8.Circular patch 2 outside the feed disk 1 around concentric fine circle shape is realized
The broadband character of antenna, relative bandwidth are about 57.1%.
Described biconial radiating element 3 is formed by two cone of radiation units are relative.
Open rectangular channel 6, described open rectangle are respectively equipped with the floor of the both sides of described biconial radiating element 3
The 2nd PIN switches 9 are loaded with groove 6, by controlling the break-make of the 2nd PIN switches 9, make antenna respectively in each restructural state
The lower small range deflection for realizing wave beam.
Described the 2nd PIN switches 9 are located at 3 liang of biconial radiating element on one article of side of open rectangular channel 6
The 2nd PIN switches 9 in the open rectangular channel 6 of side are symmetrically set.Described open rectangular channel 6 etches to be radiated in biconial
On the circular media substrate 4 of the both sides of unit 3；Four PIN switches P1-P4 are used to control four biconial radiating elements and ring attaching
The connection status of piece, realize the wide-angel beam scanning of four direction.The open rectangle line of rabbet joint is located at below each biconial unit
Corresponding floor both sides, eight PIN switch P（1-4）- 1 and P（1-4）- 2 are located at one side of each rectangular aperture groove respectively, are used for
Realize the scanning at the small angle of wave beam.Particularly PIN on off states as shown in Figure 3 and its corresponding greatest irradiation direction.
Below in conjunction with emulation experiment, the technique effect of the present invention is described further：
1st, simulated conditions and content
1.1 utilize business simulation software（High Frequency Structure Simulator HFSS ver. 15) to S
Parameter carries out simulation calculation in the range of 8-18GHz, as a result as shown in Figure 4.
1.2 utilize business simulation software（High Frequency Structure Simulator HFSS ver. 15)
Simulation calculation, embodiment minimized wide-band wave beam restructural radar are carried out at 14GHz to the present embodiment far field radiation pattern
For antenna in θ=23o, four kinds of restructural state MODE1-MODE4 E surface radiation directional diagrams are as shown in Figure 5.
1.3 utilize business simulation software（High Frequency Structure Simulator HFSS ver. 15)
Simulation calculation, embodiment minimized wide-band wave beam restructural radar are carried out at 14GHz to the present embodiment far field radiation pattern
Antenna is in θ=23o, the E surface radiations direction of four kinds of restructural state MODE1-MODE4 and its deflection of corresponding low-angle wave beam
Figure is as shown in Fig. 6-1, Fig. 6-2, Fig. 6-3 and Fig. 6-4.
2. simulation result
Referring to Fig. 4, a kind of frequency model of voltage standing wave ratio VSWR≤2 of minimized wide-band wave beam restructural radar antenna of the present invention
9.2-16.56GHz is trapped among, relative bandwidth is about 51.7%.
Referring to Fig. 5, a kind of minimized wide-band wave beam restructural radar antenna of the present invention is in 14GHz, the plane internal antenna of θ=23
Greatest irradiation direction can realize the reconstruct of four kinds of states, respectively φ=95o, φ=182o, φ=267o and φ=354o.
Referring to figure Fig. 6-1, Fig. 6-2, Fig. 6-3 and Fig. 6-4, a kind of minimized wide-band wave beam restructural radar antenna of the present invention
In 14GHz, in the plane of θ=23, antenna can realize wave beam 6-17o again under four kinds of restructural states that wide-angle scans
Small range deflection.
Above simulation result illustrates that a kind of minimized wide-band wave beam restructural radar antenna of the present invention is operated in 9.2-
16.56GHz frequency ranges, work relative bandwidth is about 51.7%, is realized in 14GHz, and four kinds of wide-angle wave beams can weigh in the plane of θ=23
Structure state and its corresponding low-angle wave beam deflection.And the height of whole antenna is only 3.15mm, there is miniaturization low section
Characteristic, be easy to be applied to mobile vehicle.
Above example be only to the present invention for example, do not form the limitation to protection scope of the present invention,
It is every to be belonged to the same or analogous design of the present invention within protection scope of the present invention.
Claims (4)
1. a kind of minimized wide-band wave beam restructural radar antenna, it is characterised in that including circular media substrate（4）, it is located at circle
Shape medium substrate（4）The metal floor of lower surface（5）, it is located at circular media substrate（4）Upper surface and it is located at circular media substrate
（4）The feed disk at center（1）；Described feed disk（1）It is full of concentric circular patch in periphery（2）；Described circle
Shape paster（2）Periphery be provided with biconial radiating element（3）, described biconial radiating element（3）It is four, four bipyramids
Shape radiating element（3）Annular is evenly distributed on circular media substrate（4）On, and four biconial radiating elements（3）In mutually
The heart is symmetrical；Described metal substrate（5）With feeding disk（1）By being located at circular media substrate（4）The coaxial feeder at center（7）
Connection；Described biconial radiating element（3）With circular patch（2）Switched by the first PIN（8）Connect.
A kind of 2. minimized wide-band wave beam restructural radar antenna according to claim 1, it is characterised in that the bipyramid
Shape radiating element（3）Open rectangular channel is respectively equipped with the floor of both sides（6）, described open rectangular channel（6）Inside it is loaded with
Two PIN are switched（9）, by controlling the 2nd PIN switches（9）Break-make, antenna is realized ripple under each restructural state respectively
The small range deflection of beam.
3. a kind of minimized wide-band wave beam restructural radar antenna according to claim 1, it is characterised in that described is double
Cone of radiation unit（3）Formed by two cone of radiation units are relative.
A kind of 4. minimized wide-band wave beam restructural radar antenna according to claim 2, it is characterised in that described
Two PIN are switched（9）Positioned at open rectangular channel（6）A side on, and be located at biconial radiating element（3）The opening square of both sides
Shape groove（6）In the 2nd PIN switch（9）It is symmetrically set.
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| CN201710475876.5A CN107342456B (en) | 2017-06-21 | 2017-06-21 | Miniaturized broadband wave beam reconfigurable radar antenna |
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| CN201710475876.5A CN107342456B (en) | 2017-06-21 | 2017-06-21 | Miniaturized broadband wave beam reconfigurable radar antenna |
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| CN107342456B CN107342456B (en) | 2020-07-03 |
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Cited By (10)
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| CN108511895A (en) * | 2018-03-07 | 2018-09-07 | 电子科技大学 | A kind of twin nuclei and the slot antenna based on the structure |
| CN108550988A (en) * | 2018-03-12 | 2018-09-18 | 北京航空航天大学 | A kind of individually controllable frequency/directional diagram mixes restructural slot antenna |
| CN108767481A (en) * | 2018-05-29 | 2018-11-06 | 电子科技大学 | A kind of directional diagram reconstructable RECTIFYING ANTENNA of broad beam |
| CN110120581A (en) * | 2018-02-07 | 2019-08-13 | 和硕联合科技股份有限公司 | Antenna assembly |
| CN110265792A (en) * | 2018-03-12 | 2019-09-20 | 杭州海康威视数字技术股份有限公司 | Antenna assembly and unmanned plane |
| CN111009738A (en) * | 2018-10-04 | 2020-04-14 | 和硕联合科技股份有限公司 | Antenna device |
| CN113964516A (en) * | 2021-09-27 | 2022-01-21 | 浙江大学 | Two-dimensional beam scanning antenna based on adjustable antenna housing |
| CN114256629A (en) * | 2021-11-18 | 2022-03-29 | 电子科技大学 | Ka frequency band broadband reconfigurable reflection unit and array antenna |
| CN114792888A (en) * | 2022-05-11 | 2022-07-26 | 领翌技术(横琴)有限公司 | Antenna and electronic device |
| CN114976607A (en) * | 2021-02-24 | 2022-08-30 | 北京京东方技术开发有限公司 | Antenna and communication apparatus |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110120581A (en) * | 2018-02-07 | 2019-08-13 | 和硕联合科技股份有限公司 | Antenna assembly |
| CN108511895A (en) * | 2018-03-07 | 2018-09-07 | 电子科技大学 | A kind of twin nuclei and the slot antenna based on the structure |
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| CN108550988A (en) * | 2018-03-12 | 2018-09-18 | 北京航空航天大学 | A kind of individually controllable frequency/directional diagram mixes restructural slot antenna |
| CN110265792A (en) * | 2018-03-12 | 2019-09-20 | 杭州海康威视数字技术股份有限公司 | Antenna assembly and unmanned plane |
| CN108767481A (en) * | 2018-05-29 | 2018-11-06 | 电子科技大学 | A kind of directional diagram reconstructable RECTIFYING ANTENNA of broad beam |
| CN111009738A (en) * | 2018-10-04 | 2020-04-14 | 和硕联合科技股份有限公司 | Antenna device |
| CN111009738B (en) * | 2018-10-04 | 2021-05-07 | 和硕联合科技股份有限公司 | Antenna device |
| CN114976607A (en) * | 2021-02-24 | 2022-08-30 | 北京京东方技术开发有限公司 | Antenna and communication apparatus |
| CN114976607B (en) * | 2021-02-24 | 2024-03-12 | 北京京东方技术开发有限公司 | Antenna and communication device |
| US11990690B2 (en) | 2021-02-24 | 2024-05-21 | Beijing Boe Technology Development Co., Ltd. | Antenna and communication device |
| CN113964516A (en) * | 2021-09-27 | 2022-01-21 | 浙江大学 | Two-dimensional beam scanning antenna based on adjustable antenna housing |
| CN114256629A (en) * | 2021-11-18 | 2022-03-29 | 电子科技大学 | Ka frequency band broadband reconfigurable reflection unit and array antenna |
| CN114792888A (en) * | 2022-05-11 | 2022-07-26 | 领翌技术(横琴)有限公司 | Antenna and electronic device |
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