CN105552535A - Frequency reconfigurable antenna based on liquid crystal material - Google Patents
Frequency reconfigurable antenna based on liquid crystal material Download PDFInfo
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- CN105552535A CN105552535A CN201610096052.2A CN201610096052A CN105552535A CN 105552535 A CN105552535 A CN 105552535A CN 201610096052 A CN201610096052 A CN 201610096052A CN 105552535 A CN105552535 A CN 105552535A
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- liquid crystal
- crystal material
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- reconfigurable antenna
- frequency reconfigurable
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
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Abstract
The invention discloses a frequency reconfigurable antenna based on a liquid crystal material, belongs to the antenna technical field, specifically relates to the frequency reconfigurable antenna based on the liquid crystal material. The frequency reconfigurable antenna comprises upper and lower base plates, a micro-strip, a metal patch, a liquid crystal layer and a metal floor. According to the frequency reconfigurable antenna of the invention, the frequency reconfigurable antenna based on the liquid crystal material is manufactured through combining the electric regulate and control characteristic of the liquid crystal material with the design of the frequency reconfigurable antenna; the antenna frequency can be continuously regulated and controlled; and the tuning range is large; the actual application of the frequency reconfigurable antenna in miniaturization and wide band is improved.
Description
Technical field
The invention belongs to antenna technical field, be specifically related to a kind of frequency reconfigurable antenna based on liquid crystal material.
Background technology
Along with developing rapidly of modern radar and communication system, for realizing the objects such as communication, navigation, guidance, warning, weapon be target-seeking, the required antenna amount such as aircraft, steamer, satellite gets more and more.This makes the weight of institute's load on platform constantly increase, and the expense of building needed for antenna also constantly rises, and meanwhile, the electromagnetic interference between each antenna is also very large, has a strong impact on the normal work of antenna.In order to alleviate institute's load on platform antenna weights, reduce costs, reduce platform RCS, realize good electromagnetic compatibility characteristic, wish the function that can realize multiple antenna with an antenna.Adopting same antenna or antenna array, by dynamically changing its physical structure or size, making it have the function of multiple antenna, be equivalent to multiple antenna duplexer physics bore, this antenna is just called reconfigurable antenna.
The concept of reconfigurable antenna is propose in the patent " Frequency-Agile, PolarizationDiverseMicrostripAntennaandFrequencyScannedA rrays " of nineteen eighty-three D.Schaubert the earliest.1999, ARPA (DARPA) formulated the plan of " ReconfigurableApertureProgram (RECAP) " by name.Under the subsidy of this plan, some laboratories and university have carried out the Primary Study of reconfigurable antenna, achieve restructural to a certain extent, demonstrate the feasibility of reconfigurable antenna with the antenna of some forms.The research of recent year reconfigurable antenna have also been obtained very large attention, and king grasps medium people and studies comparatively early and obtain certain achievement.In view of reconfigurable antenna concept is new, difficulty is large, related basic research is few, also not having can the electromagnetic theory of effective analysis and design reconfigurable antenna.The downpayment project of DARPA is the dynamic reconfigurable realizing directional diagram in the scope of 10 octaves.Reconfigurable antenna will be mainly used in all many-sides such as high frequency satellite communication system, LF communication system, electronic intelligence, radar (synthetic aperture radar (SAR)), mobile surface targets identification (GMTI).
Reconfigurable antenna generally can be divided into following a few class by function: the first kind is that pattern shapes is constant, and the antenna that frequency can change, energy broadband or multiband work; Equations of The Second Kind is that frequency is constant, the antenna that pattern shapes can change; 3rd class is the reconfigurable antenna that simultaneously can change frequency and directional diagram; Also have other such as can change the polarization reconfigurable antenna of polarised direction in addition.And according to the realization means reconstructed, the forms such as the restructural of the material behavior of electronic device restructural, mechanical reconfigurable and change antenna can be divided into again.
Although as far back as early 1980s, just propose the concept of reconfigurable antenna, until a few years ago, along with the development of microelectron-mechanical (MEMS) switch of high-performance, low-power consumption, to the research just further dark people of reconfigurable antenna.Current most of reconfigurable antenna design adopts mems switch.Mems switch has desirable switching characteristic, and on-off ratio is very high, can realize from direct current to the isolation higher than 4OGHZ radiofrequency signal.Meanwhile, it is low in energy consumption, connects Insertion Loss in people's circuit minimum, and adopts CMOS technology to make, and volume is little, lightweight, is convenient to integrated.Its shortcoming is that response speed is slightly slow, and need a few microsecond to the time of tens microseconds, and be in the nature mechanical structure due to it, therefore mechanical fatigue becomes the obstacle hindering its extensive use.In the place requiring response speed, pin diode switch can be used, but its isolation characteristic is not as mems switch, and power consumption is large.
This automatically controlled material of liquid crystal material solves these problems in the introducing of microwave section, and its automatically controlled characteristic principle is derived from the anisotropy of material itself, and therefore it is at microwave, and Terahertz even optical frequency all has good physical characteristic.But liquid crystal material is not easily processed due to its special state of matter, and therefore good electrical control mechanism becomes vital part in reconfigurable antenna, but not high in the maturity of this one side Theory and technology, and corresponding method for designing is also extremely short of.
Summary of the invention
The frequency regulation and control that the present invention be directed to existing antenna cannot realize continuous print deficiency, a kind of frequency reconfigurable antenna based on liquid crystal material of proposition.
Solution of the present invention is realized by following technical method:
Based on a frequency reconfigurable antenna for liquid crystal material, comprise upper and lower layer glass substrate, micro-band tape, metal patch, liquid crystal layer, metal floor, encapsulated liquid crystal structure; Wherein lower floor's glass substrate upper surface arranges layer of metal floor, the lower surface of upper strata glass substrate arranges "T"-shaped radiating element, the bottom of this "T"-shaped radiating element and glass substrate while flush, liquid crystal material is poured between metal floor and upper strata glass substrate, this antenna is from the bottom feed of "T"-shaped radiating element, and whole antenna four limit surrounds and seals by encapsulated liquid crystal structure.
Further, described liquid crystal material model is any one in TUD-566, E7, K15,5CB liquid crystal material.
Further, encapsulated liquid crystal structure material is epoxy resin.
The liquid crystal material that the present invention can realize electricity regulation and control combines with frequency reconfigurable antenna design, designs a kind of frequency reconfigurable antenna based on liquid crystal material.Such design can realize the continuous regulation and control of antenna frequencies.It is little that the present invention has volume, and structure is simple, the plurality of advantages such as reliability is high, and tunable range is large.For the performance improving frequency reconfigurable antenna provides brand-new technological approaches.
Accompanying drawing explanation
Fig. 1 is the frequency reconfigurable antenna structural section figure based on liquid crystal material;
Fig. 2 is the top view cross-sectional figure of the frequency reconfigurable antenna that the present invention is based on liquid crystal material;
Fig. 3 is that frequency reconfigurable antenna provided by the invention is not to S parameter simulation result during liquid crystal material powered-up mode;
Fig. 4 be frequency reconfigurable antenna provided by the invention to liquid crystal material powered-up mode and change input voltage time S parameter simulation result;
In figure: 1. micro-band tape, 2. metal patch, 3. glass substrate, 4. liquid crystal material, 5. metal floor, 6. epoxy resin.
Embodiment
Embodiment 1: a kind of frequency reconfigurable antenna based on liquid crystal material, comprises upper and lower layer glass substrate, micro-band tape, metal patch, liquid crystal layer, metal floor, encapsulated liquid crystal structure; Wherein lower floor's glass substrate upper surface arranges layer of metal floor, the lower surface of upper strata glass substrate arranges "T"-shaped radiating element, the bottom of this "T"-shaped radiating element and glass substrate while flush, liquid crystal material is poured between metal floor and upper strata glass substrate, this antenna is from the bottom feed of "T"-shaped radiating element, and whole antenna four limit surrounds and seals by encapsulated liquid crystal structure; Liquid crystal material model is TUD-566; Encapsulated liquid crystal structure material is epoxy resin.The present embodiment liquid crystal material relative dielectric constant adjustable extent is for being 2.4-3.2, and thickness is 0.2mm; Baseplate material is glass, utilizes the method for photoetching etched features on substrate, and graphics field is the radiating element be made up of micro-band tape and metal patch, and micro-band strip width is 0.53mm, and patch size is 11mm × 5mm.Upper and lower layer glass substrate volume is (long × wide × high) 8.8mm × 8.8mm × 0.1mm.
The present embodiment is biased voltage between micro-band tape and metal floor, the inner molecular structure arrangement powering up rear liquid crystal changes, because of the dielectric constant anisotropy of liquid crystal, so its dielectric constant also there occurs change, and the middle dielectric layer change in dielectric constant of micro-strip paster antenna can cause its resonance frequency to offset, thus reach the object of frequency reconfigurable.Accompanying drawing 3 is that the frequency reconfigurable antenna of this example based on liquid crystal material be not to S parameter simulation result figure during liquid crystal material powered-up mode; Accompanying drawing 4 be the frequency reconfigurable antenna of this example based on liquid crystal material to liquid crystal material powered-up mode and change input voltage time S parameter simulation result figure.Simulation results show is by realizing the frequency continuously adjustabe of frequency reconfigurable antenna to the electricity regulation and control of liquid crystal material.
Claims (3)
1., based on a frequency reconfigurable antenna for liquid crystal material, comprise upper and lower layer glass substrate, micro-band tape, metal patch, liquid crystal layer, metal floor, encapsulated liquid crystal structure; Wherein lower floor's glass substrate upper surface arranges layer of metal floor, the lower surface of upper strata glass substrate arranges "T"-shaped radiating element, the bottom of this "T"-shaped radiating element and glass substrate while flush, liquid crystal material is poured between metal floor and upper strata glass substrate, this antenna is from the bottom feed of "T"-shaped radiating element, and whole antenna four limit surrounds and seals by encapsulated liquid crystal structure.
2. a kind of frequency reconfigurable antenna based on liquid crystal material as claimed in claim 1, is characterized in that described liquid crystal material model is any one in TUD-566, E7, K15,5CB liquid crystal material.
3. a kind of frequency reconfigurable antenna based on liquid crystal material as claimed in claim 1, is characterized in that encapsulated liquid crystal structure material is epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610096052.2A CN105552535A (en) | 2016-02-22 | 2016-02-22 | Frequency reconfigurable antenna based on liquid crystal material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096052.2A CN105552535A (en) | 2016-02-22 | 2016-02-22 | Frequency reconfigurable antenna based on liquid crystal material |
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| CN105552535A true CN105552535A (en) | 2016-05-04 |
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| CN201610096052.2A Pending CN105552535A (en) | 2016-02-22 | 2016-02-22 | Frequency reconfigurable antenna based on liquid crystal material |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154603A (en) * | 2016-07-29 | 2016-11-23 | 合肥工业大学 | A kind of liquid crystal phase-shifting unit and the phased antenna of composition thereof |
| CN106932933A (en) * | 2017-05-09 | 2017-07-07 | 京东方科技集团股份有限公司 | A kind of liquid crystal antenna and preparation method thereof |
| CN107611535A (en) * | 2017-08-23 | 2018-01-19 | 电子科技大学 | Liquid crystal microwave device based on polymorphic structure |
| CN107785671A (en) * | 2017-08-16 | 2018-03-09 | 电子科技大学 | A kind of frequency reconfigurable microband paste yagi aerial and reconstructing method |
| CN108306105A (en) * | 2017-12-06 | 2018-07-20 | 上海交通大学 | A kind of directional diagram reconstructable aerial based on material with adjustable |
| CN108711669A (en) * | 2018-05-28 | 2018-10-26 | 京东方科技集团股份有限公司 | A kind of frequency adaptable antennas and preparation method thereof |
| CN108767456A (en) * | 2018-05-07 | 2018-11-06 | 电子科技大学 | It is a kind of can piecemeal control directional diagram reconstructable liquid crystal antenna and reconstructing method |
| CN108963448A (en) * | 2018-06-26 | 2018-12-07 | 东南大学 | A kind of light is transparent and frequency reconfigurable antenna and its processing method |
| CN109149090A (en) * | 2018-07-13 | 2019-01-04 | 陈彭 | A kind of multilayer encapsulation antenna |
| CN109216902A (en) * | 2017-07-06 | 2019-01-15 | 群创光电股份有限公司 | microwave device |
| CN109449580A (en) * | 2018-10-26 | 2019-03-08 | 陈彭 | A kind of coplanar feed liquid crystal encapsulation |
| CN109643849A (en) * | 2016-08-26 | 2019-04-16 | 夏普株式会社 | The manufacturing method of scanning antenna and scanning antenna |
| CN110011038A (en) * | 2018-01-05 | 2019-07-12 | 京东方科技集团股份有限公司 | Phased array antenna, display panel and display device |
| CN115241648A (en) * | 2022-06-27 | 2022-10-25 | 四川大学 | Suspension structure cavity patch antenna based on MEMS (micro-electromechanical system) process and manufacturing method thereof |
| WO2023182934A3 (en) * | 2022-03-24 | 2023-11-16 | Agency For Science, Technology And Research | An antenna system and a method of forming an antenna system |
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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154603B (en) * | 2016-07-29 | 2019-12-06 | 合肥工业大学 | Liquid crystal phase-shifting unit and phase-controlled antenna formed by same |
| CN106154603A (en) * | 2016-07-29 | 2016-11-23 | 合肥工业大学 | A kind of liquid crystal phase-shifting unit and the phased antenna of composition thereof |
| CN109643849B (en) * | 2016-08-26 | 2021-03-09 | 夏普株式会社 | Scanning antenna |
| CN109643849A (en) * | 2016-08-26 | 2019-04-16 | 夏普株式会社 | The manufacturing method of scanning antenna and scanning antenna |
| US11262607B2 (en) | 2017-05-09 | 2022-03-01 | Beijing Boe Optoelectronics Technology Co., Ltd. | Liquid crystal antenna and manufacturing method thereof |
| CN106932933A (en) * | 2017-05-09 | 2017-07-07 | 京东方科技集团股份有限公司 | A kind of liquid crystal antenna and preparation method thereof |
| WO2018205764A1 (en) * | 2017-05-09 | 2018-11-15 | 京东方科技集团股份有限公司 | Liquid crystal antenna and manufacturing method therefor |
| CN109216902A (en) * | 2017-07-06 | 2019-01-15 | 群创光电股份有限公司 | microwave device |
| CN107785671A (en) * | 2017-08-16 | 2018-03-09 | 电子科技大学 | A kind of frequency reconfigurable microband paste yagi aerial and reconstructing method |
| CN107785671B (en) * | 2017-08-16 | 2020-03-17 | 电子科技大学 | Frequency-reconfigurable microstrip patch yagi antenna and reconfiguration method |
| CN107611535A (en) * | 2017-08-23 | 2018-01-19 | 电子科技大学 | Liquid crystal microwave device based on polymorphic structure |
| CN108306105A (en) * | 2017-12-06 | 2018-07-20 | 上海交通大学 | A kind of directional diagram reconstructable aerial based on material with adjustable |
| CN110011038B (en) * | 2018-01-05 | 2020-05-05 | 京东方科技集团股份有限公司 | Phased array antenna, display panel and display device |
| CN110011038A (en) * | 2018-01-05 | 2019-07-12 | 京东方科技集团股份有限公司 | Phased array antenna, display panel and display device |
| CN108767456A (en) * | 2018-05-07 | 2018-11-06 | 电子科技大学 | It is a kind of can piecemeal control directional diagram reconstructable liquid crystal antenna and reconstructing method |
| US11095028B2 (en) | 2018-05-28 | 2021-08-17 | Beijing Boe Optoelectronics Technology Co., Ltd | Frequency tunable antenna and method of manufacturing the same, display panel |
| CN108711669A (en) * | 2018-05-28 | 2018-10-26 | 京东方科技集团股份有限公司 | A kind of frequency adaptable antennas and preparation method thereof |
| CN108963448A (en) * | 2018-06-26 | 2018-12-07 | 东南大学 | A kind of light is transparent and frequency reconfigurable antenna and its processing method |
| CN108963448B (en) * | 2018-06-26 | 2020-08-11 | 东南大学 | Processing method of light-transparent and frequency-reconfigurable antenna |
| CN109149090A (en) * | 2018-07-13 | 2019-01-04 | 陈彭 | A kind of multilayer encapsulation antenna |
| CN109449580B (en) * | 2018-10-26 | 2023-12-05 | 集美大学 | Coplanar feed liquid crystal package |
| CN109449580A (en) * | 2018-10-26 | 2019-03-08 | 陈彭 | A kind of coplanar feed liquid crystal encapsulation |
| WO2023182934A3 (en) * | 2022-03-24 | 2023-11-16 | Agency For Science, Technology And Research | An antenna system and a method of forming an antenna system |
| CN115241648A (en) * | 2022-06-27 | 2022-10-25 | 四川大学 | Suspension structure cavity patch antenna based on MEMS (micro-electromechanical system) process and manufacturing method thereof |
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Application publication date: 20160504 |