CN109301510B - Array antenna based on electromagnetic surface - Google Patents
Array antenna based on electromagnetic surface Download PDFInfo
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- CN109301510B CN109301510B CN201811322731.2A CN201811322731A CN109301510B CN 109301510 B CN109301510 B CN 109301510B CN 201811322731 A CN201811322731 A CN 201811322731A CN 109301510 B CN109301510 B CN 109301510B
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- phase modulation
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- 239000002184 metal Substances 0.000 claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims abstract description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- 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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- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
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- 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
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
The invention provides an array antenna based on an electromagnetic surface, which comprises a feed source and a planar phase modulation antenna, wherein a signal emitting port of the feed source is opposite to a phase modulation surface of the planar phase modulation antenna for adjusting the phase of a signal, a plurality of phase modulation metal patches are arranged on the upper surface of the feed source at equal intervals in an insulating mode, the phase modulation surface is formed by the phase modulation metal patches, each phase modulation metal patch comprises four L-shaped patch components, a cross strip-shaped air area is formed among the four L-shaped patch components, each adjacent L-shaped patch component is in mirror symmetry distribution, a capacitor and a diode are respectively arranged at the end of each support arm of the cross strip-shaped air area, each capacitor is electrically connected with the corresponding L-shaped patch components on two sides, and each diode is electrically connected with the corresponding L-shaped patch components on two sides.
Description
Technical Field
The invention relates to an array antenna based on an electromagnetic surface in the field of satellite navigation.
Technical Field
Beam reconfigurable array antennas having high gain beam scanning characteristics have found wide application. The existing high-gain beam scanning antenna mainly comprises a mechanical rotating parabolic antenna and an electric control phased array antenna. The rotating parabolic antenna has the advantages of simple structure, low cost, high efficiency and the like, but has special curved surface, huge volume, heavy weight, low beam scanning speed and high requirement of a servo system. The electric scanning phased array antenna can better overcome the defects, has high scanning speed and more flexible performance, is beneficial to keeping conformal with a carrier in a plane or conformal structure, has complex design of a feed network, and has higher feed loss, lower radiation efficiency of the antenna and limited gain when the caliber of the antenna is increased. While the introduction of solid state transceiver components in the unit can reduce the feed loss, the cost and weight of the system will increase substantially, which limits its large scale application.
Disclosure of Invention
To this end, the object of the present invention is to propose a novel array antenna based on a transmissive surface, which achieves fast beam scanning performance at a low cost.
The technical scheme provided is as follows:
the array antenna based on the electromagnetic surface comprises a feed source 1 and a planar phase modulation antenna 2, wherein a signal emission port of the feed source is opposite to a phase modulation surface of the planar phase modulation antenna for adjusting the phase of a signal;
the phase modulation metal patch is arranged on the upper surface of the feed source at equal intervals, the phase modulation surface is formed by the phase modulation metal patches, each phase modulation metal patch comprises four L-shaped patch components 7, a cross strip-shaped air area is formed among the four L-shaped patch components, each adjacent L-shaped patch component is distributed in a mirror symmetry mode, a capacitor 3 and a diode 4 are respectively arranged at the end of each support arm of the cross strip-shaped air area, each capacitor is electrically connected with the L-shaped patch components corresponding to the two sides, and each diode is electrically connected with the L-shaped patch components corresponding to the two sides.
Further, the extension lines of the allowable current flowing directions of the diodes form a rectangle, and the electric connection mode of the diodes is a setting mode of allowing the four L-shaped patch assemblies to form a closed-loop communication structure.
Further, the planar phase modulation antenna is formed by horizontally and longitudinally connecting a plurality of array antenna radiating units to form a planar plate structure, each array antenna radiating unit comprises a phase modulation metal patch 5, a first dielectric plate and a stratum 6, the phase modulation metal patch is arranged on the upper surface of the first dielectric plate, the stratum is arranged on the lower surface of the first dielectric plate, and the phase modulation metal patch, the capacitor 3 and the diode 4 are all arranged on the first dielectric plate.
Further, each array antenna radiating element further comprises a digital control device, the capacitance switch control port of each digital control device is electrically connected with the capacitance of the corresponding array antenna radiating element, and the diode switch control port of each digital control device is electrically connected with the diode of the corresponding array antenna radiating element.
Further, each array antenna radiating element further includes a second dielectric layer disposed below the formation.
Compared with the prior art, the invention has the following beneficial effects:
according to the novel beam reconfigurable array antenna based on the transmission type array antenna surface, the reflection phase or the transmission phase of each unit of the electromagnetic surface is adjusted, the whole surface is irradiated by adopting a horn feed source from space, and the phase of each unit of the surface is adjusted, so that a high-gain focused dynamic scanning beam, agile beam or multi-beam is obtained, and the novel beam reconfigurable array antenna based on the transmission type array antenna surface has the advantages of small feed loss, high beam scanning speed, strong array scale expansibility, simple structure, low section, light weight, easiness in conformal and low cost.
When the feed source is an array antenna, such as a microstrip array antenna, the feed source is not limited to the microstrip array antenna, the feed source is arranged behind the surface of the array antenna, and the surface of the array antenna is in the near-field irradiation area of the feed source, and the novel beam reconfigurable array antenna is in a near-field transmission type working state
Drawings
Fig. 1 is a diagram of a reconfigurable array antenna;
fig. 2 is a block diagram of a planar phase-modulated antenna;
fig. 3 is a functional block diagram of an antenna;
reference numerals illustrate:
feed source 1, planar phase modulation antenna 2, capacitor 3, diode 4, phase modulation metal patch 5, stratum 6 and patch assembly 7
Detailed Description
As shown in fig. 1-3, an array antenna based on electromagnetic surface is provided, which comprises a feed source 1 and a planar phase modulation antenna 2, wherein a signal emitting port of the feed source is opposite to a phase modulation surface of the planar phase modulation antenna for adjusting signal phase, a planar plate-shaped structure is formed by connecting a plurality of array antenna radiating units transversely and longitudinally and insulating,
each array antenna radiating unit comprises a phase modulation metal patch 5, a first dielectric plate, a stratum 6 and a phase modulation surface formed by a plurality of phase modulation metal patches, wherein the phase modulation surface is the upper surface of the planar phase modulation antenna.
As shown in fig. 2, each phase modulation metal patch comprises four L-shaped patch components 7, a cross strip-shaped air area is formed between the four L-shaped patch components, each adjacent L-shaped patch component is distributed in a mirror symmetry mode, a capacitor 3 and a diode 4 are respectively arranged at the end of each support arm of the cross strip-shaped air area, each capacitor is electrically connected with the L-shaped patch components corresponding to two sides, and each diode is electrically connected with the L-shaped patch components corresponding to two sides.
The phase modulation metal paster sets up the upper surface at first dielectric plate, and the stratum sets up the lower surface at first dielectric plate, and phase modulation metal paster, electric capacity 3 and diode 4 all are located first dielectric plate.
The topological connection mode of the diodes is that the diodes are connected in series in sequence from beginning to end, so that the extension lines of the diodes in the direction allowing current to flow form a rectangle, the electric connection mode of the diodes is a setting mode allowing four L-shaped patch assemblies to form a closed-loop communication structure, and the current direction is a single direction.
Each array antenna radiating element further comprises a digital control device, wherein the digital control device is a patch DLP4500 controller which is provided with a plurality of signal pins and two power supply pins, a capacitance switch control port of each digital control device is electrically connected with a capacitance of a corresponding array antenna radiating element, and a diode switch control port of each digital control device is electrically connected with a diode of the corresponding array antenna radiating element.
Each array antenna radiating unit further comprises a second dielectric layer, the second dielectric layer is arranged below the stratum, the second dielectric layer is mainly used for sealing the digital controller between the first dielectric layer and the second dielectric layer, a power supply circuit is 5V conventional power supply, a circuit bypasses the antenna surface, and one side of the circuit is led out and hidden to extend along the lower side of the antenna panel.
The diode is MES133T2GFC-010-25 of MACOM company, and the working states comprise: and (5) conducting and cutting off.
The first dielectric layer is Arlon 25N, and the relative dielectric constant is 3.3228, but is not limited to a plate with the electromagnetic parameters.
The second dielectric layer is a plate material with FOAM and relative dielectric constant of 1.3307, but is not limited to the electromagnetic parameters.
During the use, the working state of the planar phase modulation antenna can be changed by adjusting the switch of the capacitor and the diode, the characteristic state of the antenna is changed, when the feed source and the antenna surface are in the near-field transmission type working state, the distance between the feed source and the array antenna surface is about three wavelengths, at the moment, the novel beam reconfigurable array antenna formed by the feed source and the array antenna surface has the low-profile characteristic, the antenna surface is in the far-field irradiation area of the feed source, and the novel beam reconfigurable array antenna is in the far-field transmission type working state
Capacitors to facilitate conformal adoption of the patch capacitance and diode are PIN diodes,
the capacitor and the diode are used as phase control devices to obtain two digitally controllable reflection phase values at required frequencies, and the antenna characteristics are changed by changing on-off and throughput so as to obtain high-gain focused dynamic scanning beams and agile beams.
Claims (3)
1. An array antenna based on electromagnetic surfaces, characterized in that: the antenna comprises a feed source (1) and a planar phase modulation antenna (2), wherein a signal transmitting port of the feed source is opposite to a phase modulation surface of the planar phase modulation antenna for adjusting the phase of a signal;
the upper surface of the planar phase modulation antenna is provided with a plurality of phase modulation metal patches which are arranged at equal intervals in an insulating manner, each phase modulation metal patch comprises four L-shaped patch components (7), a cross strip-shaped air area is formed among the four L-shaped patch components, each adjacent L-shaped patch component is distributed in a mirror symmetry manner, a capacitor (3) and a diode (4) are respectively arranged at the end of each support arm of the cross strip-shaped air area, each capacitor is electrically connected with the L-shaped patch components corresponding to two sides, and each diode is electrically connected with the L-shaped patch components corresponding to two sides; the extension lines of the allowable current flowing directions of the diodes form a rectangle, and the electric connection mode of the diodes is a setting mode which allows the four L-shaped patch components to form a closed-loop communication structure; the planar phase modulation antenna is formed by horizontally and longitudinally connecting a plurality of array antenna radiating units to form a planar plate-shaped structure, each array antenna radiating unit comprises a phase modulation metal patch (5), a first dielectric plate and a stratum (6), the phase modulation metal patch is arranged on the upper surface of the first dielectric plate, the stratum is arranged on the lower surface of the first dielectric plate, and the phase modulation metal patch, the capacitor (3) and the diode (4) are all arranged on the first dielectric plate.
2. An electromagnetic surface based array antenna according to claim 1, wherein: each array antenna radiating element further comprises a digital control device, the capacitance switch control port of each digital control device is electrically connected with the capacitance of the corresponding array antenna radiating element, and the diode switch control port of each digital control device is electrically connected with the diode of the corresponding array antenna radiating element.
3. An electromagnetic surface based array antenna according to claim 2, wherein: each array antenna radiating element further includes a second dielectric layer disposed below the formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811322731.2A CN109301510B (en) | 2018-11-08 | 2018-11-08 | Array antenna based on electromagnetic surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811322731.2A CN109301510B (en) | 2018-11-08 | 2018-11-08 | Array antenna based on electromagnetic surface |
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| Publication Number | Publication Date |
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| CN109301510A CN109301510A (en) | 2019-02-01 |
| CN109301510B true CN109301510B (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811322731.2A Active CN109301510B (en) | 2018-11-08 | 2018-11-08 | Array antenna based on electromagnetic surface |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5266963A (en) * | 1985-01-17 | 1993-11-30 | British Aerospace Public Limited Company | Integrated antenna/mixer for the microwave and millimetric wavebands |
| CN101378147A (en) * | 2008-10-07 | 2009-03-04 | 浙江大学 | I-shaped electric-controlled beam scanning antenna housing constructed by microwave diode |
| CN103474775A (en) * | 2013-09-06 | 2013-12-25 | 中国科学院光电技术研究所 | Phased-array antenna based on dynamic-regulating artificial electromagnetic structural materials |
| CN106410421A (en) * | 2016-10-26 | 2017-02-15 | 东南大学 | Space wave-to-surface wave function device with controlled polarization |
| CN108023178A (en) * | 2017-12-01 | 2018-05-11 | 电子科技大学 | A kind of directional diagram reconstructable aerial and its phased array |
| CN208820064U (en) * | 2018-11-08 | 2019-05-03 | 中国电子科技集团公司第五十四研究所 | A kind of array antenna based on resistance electromagnetic surface |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9502780B2 (en) * | 2015-01-15 | 2016-11-22 | Northrop Grumman Systems Corporation | Antenna array using sandwiched radiating elements above a ground plane and fed by a stripline |
-
2018
- 2018-11-08 CN CN201811322731.2A patent/CN109301510B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5266963A (en) * | 1985-01-17 | 1993-11-30 | British Aerospace Public Limited Company | Integrated antenna/mixer for the microwave and millimetric wavebands |
| CN101378147A (en) * | 2008-10-07 | 2009-03-04 | 浙江大学 | I-shaped electric-controlled beam scanning antenna housing constructed by microwave diode |
| CN103474775A (en) * | 2013-09-06 | 2013-12-25 | 中国科学院光电技术研究所 | Phased-array antenna based on dynamic-regulating artificial electromagnetic structural materials |
| CN106410421A (en) * | 2016-10-26 | 2017-02-15 | 东南大学 | Space wave-to-surface wave function device with controlled polarization |
| CN108023178A (en) * | 2017-12-01 | 2018-05-11 | 电子科技大学 | A kind of directional diagram reconstructable aerial and its phased array |
| CN208820064U (en) * | 2018-11-08 | 2019-05-03 | 中国电子科技集团公司第五十四研究所 | A kind of array antenna based on resistance electromagnetic surface |
Non-Patent Citations (1)
| Title |
|---|
| 一种基于共享孔径Fabry-Perot谐振腔结构的宽带高增益磁电偶极子微带天线;张晨;曹祥玉;高军;李思佳;郑月军;;物理学报;20160530(13);全文 * |
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