CN106450798A - Broadband reflect array antenna based on medium open pore unit structure - Google Patents
Broadband reflect array antenna based on medium open pore unit structure Download PDFInfo
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- CN106450798A CN106450798A CN201610963122.XA CN201610963122A CN106450798A CN 106450798 A CN106450798 A CN 106450798A CN 201610963122 A CN201610963122 A CN 201610963122A CN 106450798 A CN106450798 A CN 106450798A
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- layer
- matching layer
- array antenna
- phase shifting
- phase
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
-
- 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
- H01Q15/14—Reflecting surfaces; Equivalent structures
-
- 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
- H01Q19/10—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 using reflecting surfaces
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention relates to a broadband reflect array antenna based on a medium open pore unit structure. A reflect array unit adopted by the antenna comprises two function layers including the phase shifting layer and the matching layer, and base materials of the two function layers are both low-consumption microwave media. The matching layer has the effects of improving the phase shifting characteristic of the reflect array unit and broadening the working bandwidth of the unit. Compared with a microstrip patch structure which is commonly used by a traditional reflect array antenna, a phase shift curve of the reflect array unit has the higher linearity and parallelism degree. A phase shift value of the reflect array unit can be adjusted by changing the diameter of a cylindrical air hole formed in a substrate. By adopting the unit structure to form a reflect array antenna panel, spherical waves emitted by a feed source can be converted into plane waves, and therefore high-gain directional beams are formed.
Description
Technical field
Present invention belongs to antenna technical field, the more particularly to a kind of high-gain reflective array antenna in broadband.
Background technology
In the telecommunication system such as radar-probing system, satellite communication system and deep space instrumentation system (DSIS), efficient high
Gain antenna is indispensable key equipment.Existing high-gain aerial is mainly parabola antenna and array antenna.
Typical parabola antenna structure, antenna feed is placed in the focus of parabola antenna, by parabola by feed
The spherical wave of radiation forms plane wave after reflection and is propagated.Parabola antenna has simple structure, aperture efficiency height, work
The advantages of carrying wide.But the parabolic reflector of curve form causes antenna volume both bulk, especially in design high band day
During line, reflecting surface surface accuracy is required higher.
Typical array antenna structure, is compared to parabola antenna, and array antenna section is low, by rear end feeding network
Beam scanning can flexibly be realized.But the array arrangement of complexity and feeding network so as to which design difficulty is larger, and feeding network
Loss is larger, and Antenna Operation is less efficient, as this impact of rising of operating frequency of antenna is more serious.
Reflective array antenna is a kind of new reflector antenna, and it replaces traditional parabola song using plane reflection face
Face.Substantial amounts of reflection array element is placed with plane reflection face, by controlling the amount of phase shift of reflection array element, can be in specific finger
To formation high-gain wave beam.
Reflective array antenna has high gain, easily realizes wave beam forming, and processing cost is low, be easy to the technical advantages such as deployment；
But the technical bottleneck of reflective array antenna is that working band is narrow.This narrow-band characteristic is caused by two aspect reasons：One is reflective array
The Phase-Shifting Characteristics of unit are arrowbands；Two be reflect array element phase compensation scope little, it is impossible to be fully compensated central beam with
The phase contrast of edge wave beam.Traditional reflection array element is mainly microband paste form, and its phase-shift curve changes in serpentine, work
Make frequency band narrower.
The present invention proposes a kind of broadband reflection array antenna based on dielectric openings cellular construction.The reflection array element of the antenna
Using dielectric openings structure, the phase shift curve of unit has the good linearity, can realize large-scale phase compensation so that
Reflective array antenna being capable of wideband operation.
Content of the invention
The purpose of the present invention is to design a kind of reflective array antenna of wideband operation.The antenna adopts novel medium perforate list
Unit, obtains phase-shift curve of good performance.Compare the reflective array antenna based on metal patch unit, this reflective array antenna tool
There is wideband operation ability.
The technical solution used in the present invention is：
A kind of broadband reflection array antenna based on dielectric openings cellular construction, including bipolar feed source 1 and plane reflective array
Face 2；It is characterized in that：Plane reflection front 2 includes phase shifting layer 3, matching layer 4 and metal backing 5；Described phase shifting layer 3 and
Join layer 4 and be planar medium substrate；The upper surface of phase shifting layer 3 is connected with the lower surface of matching layer 4, the lower surface of phase shifting layer 3
It is connected with metal backing 5；Phase shifting layer 3 is made up of multiple reflection array elements, and each reflection array element is comprising multiple anti-along plane
Penetrate the airport 6 that the normal direction of front 2 is opened up, the size of airport 6 and spacing are according to phase shift value and the reflection phase of electromagnetic wave
Position sets；The airport 6 of multiple normal directions along plane reflection front 2 is offered on matching layer 4, airport 6 in matching layer 4
Axis coincide with the axis of airport 6 in phase shifting layer 3.
Wherein, in matching layer 4, the size of airport 6 is obtained by quarter-wave matching layer Theoretical Calculation.
Wherein, the composition material of phase shifting layer 3 and matching layer 4 is low-loss microwave-medium substrate.
Wherein, the composition material of phase shifting layer 3 and matching layer 4 is the medium substrate of high-k.
Wherein, phase shifting layer 3 is with matching layer 4 from the different composition material of dielectric constant.
The present invention is compared to background technology, and its advantage is：
(1) reflective array antenna front adopts plane form, front can piecemeal, collection is convenient, with portability.
(2) reflection array element is designed using all dielectric, it is to avoid the resonance characteristic of conventional microsthp patch structure, is improved and is reflected
The Phase-Shifting Characteristics of array element.
(3) reflection array element employs matching layer design, improves the linearity and the depth of parallelism of unit phase shift curve, reduces
Phase error after unit group battle array.
(4) medium phase shifting layer and matching layer can be made using printed circuit board technology, and technical maturity is stable, machining accuracy height, just
Fix in installing.
Description of the drawings
Fig. 1 is the schematic diagram of broadband reflection array antenna of the present invention.
Fig. 2 is the schematic diagram of reflective array unit structure model of the present invention.
Fig. 3 reflects front a quarter panel construction schematic diagram for the present invention.
Fig. 4 reflects the Phase-Shifting Characteristics curve of array element for the present invention.
Fig. 5 is the antenna pattern of reflective array antenna of the present invention.
Specific embodiment
With reference to Fig. 1 to Fig. 5, the invention will be further described.But protection scope of the present invention is not limited to the reality
Apply example.
As shown in figure 1, the broadband reflection array antenna based on dielectric openings cellular construction according to the present invention, including：Support
Dual-polarized feed 1 and the plane reflection front 2 based on dielectric openings cellular construction.
Plane reflection front according to the present invention includes phase shifting layer 3, matching layer 4 and metal backing by plane reflection front 2
5；Described phase shifting layer 3 and matching layer 4 are planar medium substrate；The upper surface of phase shifting layer 3 is connected with the lower surface of matching layer 4
Connect, the lower surface of phase shifting layer 3 is connected with metal backing 5；Phase shifting layer 3 is made up of multiple reflection array elements, each reflective array list
The airport 6 that opens up comprising multiple normal directions along plane reflection front 2 of unit, as shown in figure 3, the size of airport 6 and
Set away from the phase shift value according to electromagnetic wave and reflected phase；As shown in Fig. 2 offering on matching layer 4 multiple along plane reflection battle array
The airport 6 of the normal direction in face 2, in matching layer 4, the axis of airport 6 is coincided with the axis of airport 6 in phase shifting layer 3,
In matching layer 4, the size of airport 6 is obtained by quarter-wave matching layer Theoretical Calculation.
The composition material of phase shifting layer 3 and matching layer 4 is low-loss microwave-medium substrate and Jie for high-k
Matter substrate.
Used as one embodiment, phase shifting layer 3 is with matching layer 4 from the different base material of dielectric constant, the base material choosing of phase shifting layer 3
With the printed board that dielectric constant is 10；The base material of matching layer 4 is from the printed board that dielectric constant is 6.Contain the cycle in printed board
Property arrangement airport.Change the position of airport, the reflected phase of electromagnetic wave can be adjusted.
Fig. 4 is the Phase-Shifting Characteristics curve of reflection array element according to the present invention.The curve can be used for reflective array antenna
Front is designed.According to Phase Stacking theory, can obtain reflecting the phase shift value that front diverse location needs.It is possible thereby to determine anti-
Penetrate the unit bore size of various location on front.
Used as one embodiment, the present invention devises the reflective array front that a kind of array element scale design is for 30 × 30.Due to
Array scale is larger and reflective array unit size is different, using matlab software transfer electromagnetism full-wave simulation software, realizes
The automation modeling of whole reflective array antenna.
Fig. 5 be using the present invention reflective array antenna center frequency point directional diagram, radiation main beam direction good, secondary lobe
Level value is low, and antenna performance is preferable.
Claims (5)
1. a kind of broadband reflection array antenna based on dielectric openings cellular construction, including bipolar feed source (1) and plane reflective array
Face (2)；It is characterized in that：Plane reflection front (2) includes phase shifting layer (3), matching layer (4) and metal backing (5)；Described shifting
Phase layer (3) and matching layer (4) are planar medium substrate；The upper surface of phase shifting layer (3) is connected with the lower surface of matching layer (4)
Connect, the lower surface of phase shifting layer (3) is connected with metal backing (5)；Phase shifting layer (3) is made up of multiple reflection array elements, and each is anti-
Penetrate the airport (6) that array element is opened up comprising multiple normal directions along plane reflection front (2), the size of airport (6) and
Spacing is according to phase shift value and the reflected phase setting of electromagnetic wave；Offer on matching layer (4) multiple along plane reflection front (2)
The airport (6) of normal direction, the axis phase of the axis of airport (6) and airport (6) in phase shifting layer (3) in matching layer (4)
Overlap.
2. a kind of broadband reflection array antenna based on dielectric openings cellular construction according to claim 1, it is characterised in that：
In matching layer (4), the size of airport (6) is obtained by quarter-wave matching layer Theoretical Calculation.
3. a kind of broadband reflection array antenna based on dielectric openings cellular construction according to claim 1, it is characterised in that：
The composition material of phase shifting layer (3) and matching layer (4) is low-loss microwave-medium substrate.
4. a kind of broadband reflection array antenna based on dielectric openings cellular construction according to claim 1, it is characterised in that：
The composition material of phase shifting layer (3) and matching layer (4) is the medium substrate of high-k.
5. a kind of broadband reflection array antenna based on dielectric openings cellular construction according to claim 1 or 4, its feature exists
In：Phase shifting layer (3) is with matching layer (4) from the different composition material of dielectric constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610963122.XA CN106450798A (en) | 2016-10-28 | 2016-10-28 | Broadband reflect array antenna based on medium open pore unit structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610963122.XA CN106450798A (en) | 2016-10-28 | 2016-10-28 | Broadband reflect array antenna based on medium open pore unit structure |
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| Publication Number | Publication Date |
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| CN106450798A true CN106450798A (en) | 2017-02-22 |
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| CN201610963122.XA Pending CN106450798A (en) | 2016-10-28 | 2016-10-28 | Broadband reflect array antenna based on medium open pore unit structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767424A (en) * | 2018-05-31 | 2018-11-06 | 西安电子科技大学 | Wide-band bidirectional radiating antenna based on porous honeycomb harden structure |
| CN109638464A (en) * | 2018-12-20 | 2019-04-16 | 尚光林 | A kind of research of planar reflectarray antennas |
| CN111900550A (en) * | 2020-08-31 | 2020-11-06 | 西安电子科技大学 | Impedance and phase dual-modulation fused dual-source super-surface high-directivity antenna |
| CN112952398A (en) * | 2021-02-21 | 2021-06-11 | 中国电子科技集团公司第二十二研究所 | Double-channel Ku waveband receiving antenna |
| CN115579619A (en) * | 2022-10-27 | 2023-01-06 | 珠海中科慧智科技有限公司 | Dual-band high-gain antenna and preparation method thereof |
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| CN102237573A (en) * | 2010-05-07 | 2011-11-09 | 同济大学 | Flat-plate transmission type focusing antenna |
| CN102904044A (en) * | 2011-07-26 | 2013-01-30 | 深圳光启高等理工研究院 | Feedback radar antenna |
| CN102904046A (en) * | 2011-07-26 | 2013-01-30 | 深圳光启高等理工研究院 | Offset microwave antenna |
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| CN102237573A (en) * | 2010-05-07 | 2011-11-09 | 同济大学 | Flat-plate transmission type focusing antenna |
| CN102904044A (en) * | 2011-07-26 | 2013-01-30 | 深圳光启高等理工研究院 | Feedback radar antenna |
| CN102904046A (en) * | 2011-07-26 | 2013-01-30 | 深圳光启高等理工研究院 | Offset microwave antenna |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767424A (en) * | 2018-05-31 | 2018-11-06 | 西安电子科技大学 | Wide-band bidirectional radiating antenna based on porous honeycomb harden structure |
| CN108767424B (en) * | 2018-05-31 | 2020-04-14 | 西安电子科技大学 | Broadband bidirectional radiation antenna based on porous honeycomb panel structure |
| CN109638464A (en) * | 2018-12-20 | 2019-04-16 | 尚光林 | A kind of research of planar reflectarray antennas |
| CN111900550A (en) * | 2020-08-31 | 2020-11-06 | 西安电子科技大学 | Impedance and phase dual-modulation fused dual-source super-surface high-directivity antenna |
| CN112952398A (en) * | 2021-02-21 | 2021-06-11 | 中国电子科技集团公司第二十二研究所 | Double-channel Ku waveband receiving antenna |
| CN112952398B (en) * | 2021-02-21 | 2022-08-02 | 中国电子科技集团公司第二十二研究所 | Double-channel Ku waveband receiving antenna |
| CN115579619A (en) * | 2022-10-27 | 2023-01-06 | 珠海中科慧智科技有限公司 | Dual-band high-gain antenna and preparation method thereof |
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Application publication date: 20170222 |