CN110707421A - Dual-polarization tightly-coupled phased array antenna based on end overlapping - Google Patents
Dual-polarization tightly-coupled phased array antenna based on end overlapping Download PDFInfo
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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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
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- 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
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
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- 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
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- H—ELECTRICITY
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- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
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Abstract
The invention discloses a dual-polarized tightly-coupled phased-array antenna based on end overlapping, which comprises a plurality of array units which are periodically arranged, wherein each array unit comprises a square dielectric substrate (1), a dipole antenna (2), a dielectric wide-angle matching layer (3), a feed structure (4) and a metal floor (5); the dielectric wide-angle matching layer (3) is superposed on the upper surface of the dielectric substrate (1), the dipole antenna (2) is tightly attached to the lower surface of the dielectric substrate (1), the metal floor (5) is arranged below the dielectric substrate (1) in parallel, the feed structure (4) is arranged between the dielectric substrate (1) and the metal floor (5), the upper end of the feed structure is connected with the dipole antenna (2), and the lower end of the feed structure is connected with the metal floor (5); the dipole antenna (2) is a dual-polarized tightly-coupled antenna with overlapped tail ends. The dual-polarized tightly-coupled phased array antenna has the advantages of good impedance matching, wide band and wide angle, and is convenient to process and produce.
Description
Technical Field
The invention belongs to the technical field of broadband phased array antennas, and particularly relates to a dual-polarized tightly-coupled phased array antenna based on end overlapping.
Background
Phased array antennas are a modern form of antenna developed on the basis of array antennas. The broadband antenna units are arranged into a one-dimensional, two-dimensional or other array form according to a certain rule, so that possible directional diagram distortion and scanning blind spots are avoided, and a basic structure of a broadband phased array is formed. The phased array changes the radiation field phase of each unit in the array antenna by an electronic control method according to the principle that the beam generates deviation when the aperture field phase is linearly changed, and the main lobe beam is used for scanning. When the broadband characteristic and the wide-angle scanning characteristic are combined, the broadband phased array antenna is formed.
With the rapid development of the electronic countermeasure and radar fields, especially the development of broadband interference and anti-interference, high resolution and multi-dimensional imaging, target identification and the like, higher requirements are brought to the working frequency of the array antenna. On the other hand, for electronic countermeasure and radar system platforms, the reduction of the number of antennas used can reduce the complexity of electronic equipment and mutual coupling between the antennas, so that the system platform has an urgent need for ultra-wideband array antennas.
The conventional ultra-wideband array antenna mostly adopts Vivaldi antenna as an array element form, and because the design method has limitations, the margin for bandwidth widening is small. For example, antenna element bandwidth limits array bandwidth, and spatial scan angle is affected by inter-element coupling. In order to maintain the radiation performance of the array, the traditional ultra-wideband antenna array usually adopts some methods to inhibit the coupling between the units, such as adding a metal partition plate between the units, or adding a wave-absorbing material, and the like. In addition to physical isolation, there is also a selective compensation to suppress coupling, i.e., the signal is multiplied by an inverse coupling factor before feeding to eliminate the effect of mutual coupling. However, these methods often have negative effects such as gain reduction, pattern distortion, increased design difficulty, and the like. Meanwhile, the traditional broadband phased array needs to be realized by dividing a subarray, applying an optical modulation and demodulation technology and an optical fiber delay line, so that the equipment quantity is large, the technology is complex, the cost is high, and the debugging and the maintenance are not convenient. In the design of a phased array antenna, in addition to solving the problem of broadband matching of a general array antenna, the problem of matching of wide-angle scanning needs to be solved.
In addition to the coupling problem, the ultra-wideband antenna array has the defect of large volume, and the traditional Vivaldi antenna array and the ridge-type gradient slotted antenna array usually need longer length in order to realize the gradient of impedance; in order to realize the ultra-wideband characteristic, the conventional planar spiral antenna needs a larger radius. Therefore, the traditional ultra-wideband antenna array is difficult to realize the requirements of miniaturization, easy conformal property and the like due to the volume problem.
For example, in a patent published by zhanhui, wang et al in 2018 entitled "a reconfigurable tightly coupled broadband array antenna" (application number CN201810126029.2), an antenna capable of switching between a tightly coupled mode and a conventional mode and realizing full coverage of S/C/X/Ku frequency bands is proposed, which includes a dipole antenna plate, a dielectric wide-angle matching plate and a metal floor. Although three frequency multiplication antenna bandwidths are obtained and full coverage in an S/C/X/Ku frequency band is realized, a feed balun structure is not adopted, conversion from unbalanced feed to balanced feed is not easy to realize, the antenna structure is complex, and particularly four switch structures arranged for realizing reconfigurable characteristics are not easy to process.
For example, in 2017, zhuangshuai, liushuang et al published a patent (application number: CN201710483872.1) named "ultra wide band array antenna", which includes a dipole antenna array board, a resistive frequency selective surface board, a ground board and a feed balun, where the antenna array board is composed of a plurality of dipole radiation periodic units, and the antenna array board satisfies a reflection coefficient of 6dB or less in a frequency band from 0.63GHz to 4.6GHz by using tight coupling between the units. But the array antenna is not very wide in bandwidth and is relatively complex in structure.
Disclosure of Invention
The invention aims to provide a dual-polarized tightly-coupled phased array antenna based on end overlapping, which has the advantages of good impedance matching, wide bandwidth and wide angle and is convenient to process and produce.
The technical solution for realizing the purpose of the invention is as follows:
a dual-polarized close-coupled phased array antenna based on end overlapping comprises a plurality of array units which are arranged periodically,
the array unit comprises a square dielectric substrate 1, a dipole antenna 2, a dielectric wide-angle matching layer 3, a feed structure 4 and a metal floor 5;
the medium wide-angle matching layer 3 is superposed on the upper surface of the medium substrate 1, the dipole antenna 2 is tightly attached to the lower surface of the medium substrate 1, the metal floor 5 is arranged below the medium substrate 1 in parallel, the feed structure 4 is arranged between the medium substrate 1 and the metal floor 5, the upper end of the feed structure is connected with the dipole antenna 2, and the lower end of the feed structure is connected with the metal floor 5;
the dipole antenna 2 is a dual-polarized close-coupled antenna with overlapped ends.
Compared with the prior art, the invention has the following remarkable advantages:
1. the impedance matching is good: the invention widens the antenna bandwidth by strengthening the coupling among the array elements, can ensure the matching of impedance in a very wide frequency band, realizes the low voltage standing-wave ratio in the wide frequency band, and is easy to be conformal;
2. wide width angle: the invention adopts the Marchand balun with a microstrip structure to realize impedance conversion and field matching, realizes the broadband wide-angle performance of the phased array antenna, and is convenient for antenna integration.
3. The invention adopts the super surface to replace the traditional medium matching board, has reduced the antenna profile; the microstrip power divider adopts a microstrip structure, further simplifies the processing difficulty and is convenient for integrally processing the antenna on a PCB (printed circuit board).
4. The volume is small: the mutual coupling between the antenna units is reduced, so that the distance between the antenna units is reduced, the antenna units are more compact, and the whole volume of the antenna is reduced.
Furthermore, the invention is described in further detail below with reference to the figures and the detailed description.
Drawings
Fig. 1 is a schematic diagram of a cell structure according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a dipole unit structure according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of a super-surface structure according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a feeding balun structure according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of a metal floor according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of a 2 × 2 array structure according to an embodiment of the present invention.
Fig. 7 is a diagram of the operating bandwidth of an antenna unit in accordance with an embodiment of the present invention.
Fig. 8 is a return loss plot for an antenna unit of an embodiment of the present invention.
Fig. 9 is an antenna element pattern of an embodiment of the present invention.
In the figure, a dielectric substrate 1, a dipole antenna 2, a dielectric wide-angle matching layer 3, a feed structure 4, a metal floor 5, a super surface 6,
a first dielectric sheet 41, a second dielectric sheet 42, printed boards 411, 412.
Detailed Description
The dual-polarized tightly-coupled phased array antenna based on end overlapping comprises a plurality of array units which are periodically arranged.
As shown in fig. 1, the array unit includes a square dielectric substrate 1, a dipole antenna 2, a dielectric wide-angle matching layer 3, a feed structure 4, and a metal floor 5;
the medium wide-angle matching layer 3 is superposed on the upper surface of the medium substrate 1, the dipole antenna 2 is tightly attached to the lower surface of the medium substrate 1, the metal floor 5 is arranged below the medium substrate 1 in parallel, the feed structure 4 is arranged between the medium substrate 1 and the metal floor 5, the upper end of the feed structure is connected with the dipole antenna 2, and the lower end of the feed structure is connected with the metal floor 5;
the dipole antenna 2 is a dual-polarized close-coupled antenna with overlapped ends.
As shown in figure 2 of the drawings, in which,
the dipole antenna 2 comprises a first dipole element 21 and a second dipole element 22 of the same shape,
the first dipole unit 21 is in a bow-tie shape and comprises a first dipole arm 211 and a second dipole arm 212 which are symmetrically arranged, the first dipole arm 211 and the second dipole arm 212 are both formed by a rectangle and a connecting surface of the bottom side of the trapezoid, the trapezoid top side of the first dipole arm 211 is opposite to the trapezoid side of the second dipole arm 212, and a gap is arranged between the two trapezoid top sides;
the second dipole unit 22 is in a bow-tie shape and comprises a third dipole arm 221 and a fourth dipole arm 222 which are symmetrically arranged, the third dipole arm 221 and the fourth dipole arm 222 are both formed by connecting a rectangle with a bottom edge of a trapezoid, the trapezoid top edge of the third dipole arm 221 is opposite to the trapezoid edge of the fourth dipole arm 222, and a gap is arranged between the two trapezoid top edges;
the axis of the first dipole unit 21 is parallel to one side of the square dielectric substrate 1, the first dipole unit 21 is close to the side, the axis of the second dipole unit 22 is perpendicular to the axis of the first dipole unit 21 and is close to the other side of the square dielectric substrate 1, and the rectangle of the fourth dipole arm 222 of the second dipole unit 22 is vertically overlapped with the rectangle of the second dipole arm 212 of the first dipole unit 21.
As shown in figure 3 of the drawings,
the feed structure 4 includes a first dielectric plate 41 and a second dielectric plate 42 which are vertically arranged and vertically crossed with each other,
the upper end of the first dielectric plate 41 is connected with the central axis of the first dipole unit 21, and the upper end of the second dielectric plate 42 is connected with the central axis of the second dipole unit 22.
The second dielectric plate 42 has the same shape and structure as the first dielectric plate 41;
the first dielectric plate 41 is rectangular in appearance and includes two printed boards 411 and 412 and a microstrip structure feed balun disposed between the two printed boards 411 and 412.
As shown in figure 5 of the drawings,
a first rectangular gap 51 is formed at the connection position of the metal floor 5 and the lower end of the first dielectric plate 41, and the first rectangular gap 51 is positioned right below the central axis of the first dipole arm 211;
a second rectangular gap 52 is formed at the connection position of the metal floor 5 and the lower end of the second dielectric plate 42, and the second rectangular gap 52 is located right below the central axis of the third dipole arm 221.
As shown in figure 4 of the drawings,
the upper surface of the medium wide-angle matching layer 3 is coated with a super surface 6 of an open resonator ring structure.
Preferably, the dielectric constant of the equivalent dielectric wide-angle matching layer of the super-surface 6 is 3.66 at the operating frequency of the antenna of 0 to 15 GHz.
The thickness of the medium wide-angle matching layer 3 is 6mm, and the relative dielectric constant is 1.7.
In the embodiment, the dielectric substrate 1 is a square plate-shaped structure with a side length of 17.25mm and a thickness of 0.508 mm.
The dipole antenna 2 comprises dipole units 21 and 22, the dipole unit 21 is of a bow-tie type and comprises dipole arms 211 and 212, the arm length d1 is 6.65mm, the arm width d2 is 2.75mm, a rectangular gap is arranged between the two antenna arms, the gap length w1 is 0.5mm, the width w0 is 0.45mm, the part of the antenna arm, which is connected with the gap, is of a trapezoid, the trapezoid height L is 2.75mm, the dipole unit 21 is horizontally placed on the lower surface of the dielectric substrate 1, wherein the line is parallel to the side length of the dielectric substrate 1, and is 4.2226mm away from one side of the dielectric substrate.
The dipole elements 22 cross perpendicularly to the dipole elements 21 and their central lines are 4.2226mm from one side of the dielectric substrate 1. When the array antenna is formed, the end of one arm 212 of the dipole 21 overlaps the end of the dipole arm of the adjacent antenna element by 2.6mm, and the end of one arm 222 of the dipole 22 also overlaps the end of the dipole arm of the other adjacent antenna element by 2 mm.
The overlapping part realizes the tight coupling of the array antenna, so that the bandwidth of the antenna can be widened, the impedance matching can be ensured in a very wide frequency band, the low-voltage standing-wave ratio in the wide frequency band is realized, and the antenna is easy to conform. In addition, mutual coupling among the antenna units is reduced, so that the distance among the antenna units is reduced, the antenna units are more compact, and the overall size of the antenna is reduced.
The medium wide-angle matching layer 3 is a rectangular block structure and is arranged close to the medium substrate 1, the length and the width of the medium wide-angle matching layer 3 are both 17.25mm and 6mm, the upper layer of the medium wide-angle matching layer can be coated with a super surface of an open resonant ring structure, the length of a gap part of the resonant ring is 0.435mm, the radius of the gap part of the resonant ring is 1.35mm,
the loaded super-surface can reduce the thickness of the medium wide-angle matching layer, and the design of a low-profile and miniaturized antenna is realized.
The feed structure 4 comprises two dielectric plates 41 and 42, the thickness of each dielectric plate is 0.3048mm, the height of each dielectric plate is 16.992mm, the length of each dielectric plate is 17.25mm, each dielectric plate is vertically arranged between the dielectric substrate 1 and the metal floor, the metal floor is parallel to the dielectric substrates, the dielectric plates 41 and 42 are mutually crossed and vertical, the upper ends of the dielectric plates are correspondingly connected with the center lines of the dipole units 21 and 22 respectively, and the lower ends of the dielectric plates are connected with the rectangular gaps 51 and 52 formed in the metal floor 5 respectively. The dielectric board 41 (or 42) includes two printed boards 412 (or 421) and 412 (or 422) on which a feeding balun is printed in an interlayer.
The feed balun can adopt a microstrip structure to realize impedance conversion and field matching, further realize the broadband wide-angle performance of the phased array antenna, and is convenient for antenna integration.
The feed balun is composed of microstrip lines and short-circuit wires, the width of the feed balun is 6mm, the height of the feed balun is 16.992mm, the thickness of the feed balun is 0.3084mm, two notches are formed in the portion, connected with the lower surface of the dielectric substrate, of the balun, the width of the feed balun is 2.25mm, the height of the feed balun is 0.5mm, a strip-shaped groove is formed in the middle of the two notches, the width w1 is 0.05mm, the height of the feed balun is 1.65mm, and the strip. The central line of the rectangular hollow groove is superposed with the central line of the balun, the width is 3.7mm, and the height is 12.5 mm. Microstrip line width Wfeed 0.015mm, lower connection metal floor, the perpendicular to metal floor upwards extends 1.0825mm, then extends 2.16mm parallel to the dielectric substrate, and then is connected to the tip of short circuit, and the short circuit is the rectangle by the tip gradual change, and rectangle width doc 0.5mm, the last side distance of the horizontal part of rectangle short circuit medium base plate 1 is 0.825mm, the lower side distance medium base plate 1 is 1.325mm, the long limit of vertical part is 8mm, and the short length is 7.5mm, and the central line that the short circuit is perpendicular to metal floor part is 2.425mm apart from the balun central line.
Due to the impedance transformation of the shorting stub, the energy gained by the feed can be radiated to space through the shorting stub.
The metal floor 5 is provided with two rectangular gaps 51 and 52, the two rectangular gaps are respectively located right below center lines of the dipole arms 211 and 221, the width of each gap is 0.3048mm, the depth s1 of the rectangular gap 51 is 3.125mm, the depth s2 of the rectangular gap 52 is 3.18065mm, excitation units 511 and 521 are arranged in the rectangular gaps, the length of each excitation unit 511 is 1.15mm, the length of each excitation unit 521 is 0.6096mm, and the lengths of outer ends of the excitation units 511 and 521 close to the edge of the metal floor 5 are each 1.5702 mm.
The microstrip power divider can be connected below the metal floor 5, and after the antenna array is formed, the phase can be linearly gradually changed through phase compensation, so that the beam direction deviation is realized. The microstrip power divider adopts a microstrip structure, further simplifies the processing difficulty and is convenient for integrally processing the antenna on a PCB (printed circuit board).
After the excitation is set at the excitation units 511 and 521 of the metal floor 5, the current propagates to the tip of the short-circuit wire along the microstrip line, the energy is collected at the tip, that is, the rectangular gap between the two antenna arms of the dipole units 21 and 22, propagates along the short-circuit wire, and finally radiates out.
Fig. 6 is a schematic diagram of a 2 × 2 array structure according to an embodiment of the present invention.
According to the above embodiments, the electromagnetic simulation software HFSS can be used to obtain the port standing wave ratio curves shown in fig. 7 and 8, and it can be seen from the curves that, on the premise that the port standing wave ratio is less than 2.5, the ultra-wideband wide-angle tightly-coupled antenna array shown in this embodiment can achieve wide-angle scanning performance of up to 45 ° for the E-plane and the H-plane in the ultra-wideband from 2GHz to 7 GHz.
Claims (8)
1. A dual-polarized close-coupled phased array antenna based on end overlapping comprises a plurality of array units which are periodically arranged, and is characterized in that:
the array unit comprises a square dielectric substrate (1), dipole antennas (2), a dielectric wide-angle matching layer (3), a feed structure (4) and a metal floor (5);
the dielectric wide-angle matching layer (3) is superposed on the upper surface of the dielectric substrate (1), the dipole antenna (2) is tightly attached to the lower surface of the dielectric substrate (1), the metal floor (5) is arranged below the dielectric substrate (1) in parallel, the feed structure (4) is arranged between the dielectric substrate (1) and the metal floor (5), the upper end of the feed structure is connected with the dipole antenna (2), and the lower end of the feed structure is connected with the metal floor (5);
the dipole antenna (2) is a dual-polarized tightly-coupled antenna with overlapped tail ends.
2. The phased array antenna of claim 1, wherein:
the dipole antenna (2) comprises a first dipole unit (21) and a second dipole unit (22) which are identical in shape,
the first dipole unit (21) is in a bow-tie shape and comprises a first dipole arm (211) and a second dipole arm (212) which are symmetrically arranged, the first dipole arm (211) and the second dipole arm (212) are formed by connecting a rectangle with the bottom edge of a trapezoid, the trapezoid top edge of the first dipole arm (211) is opposite to the trapezoid edge of the second dipole arm (212), and a gap is arranged between the two trapezoid top edges;
the second dipole unit (22) is in a bow-tie shape and comprises a third dipole arm (221) and a fourth dipole arm (222) which are symmetrically arranged, the third dipole arm (221) and the fourth dipole arm (222) are formed by connecting a rectangle with the bottom side of a trapezoid, the trapezoid top side of the third dipole arm (221) is opposite to the trapezoid side of the fourth dipole arm (222), and a gap is formed between the two trapezoid top sides;
the axis of the first dipole unit (21) is parallel to one side of the square dielectric substrate (1), the first dipole unit (21) is close to the side, the axis of the second dipole unit (22) is perpendicular to the axis of the first dipole unit (21) and close to the other side of the square dielectric substrate (1), and the rectangle of the fourth dipole arm (222) of the second dipole unit (22) is vertically superposed with the rectangle of the second dipole arm (212) of the first dipole unit (21).
3. The phased array antenna of claim 2, wherein:
the feed structure (4) comprises a first dielectric plate (41) and a second dielectric plate (42) which are vertically arranged and are mutually and vertically crossed,
the upper end of the first dielectric plate (41) is connected with the central axis of the first dipole unit (21), and the upper end of the second dielectric plate (42) is connected with the central axis of the second dipole unit (22).
4. The phased array antenna of claim 3, wherein:
the second dielectric plate (42) and the first dielectric plate (41) have the same shape and structure;
the first dielectric plate (41) is rectangular in appearance and comprises two layers of printed boards (411 and 412) and a microstrip structure feed balun arranged between the two layers of printed boards (411 and 412).
5. The phased array antenna of claim 4, wherein:
a first rectangular gap (51) is formed at the connection position of the metal floor (5) and the lower end of the first dielectric plate (41), and the first rectangular gap (51) is positioned right below the central axis of the first dipole arm (211);
and a second rectangular gap (52) is formed at the connection part of the metal floor (5) and the lower end of the second dielectric plate (42), and the second rectangular gap (52) is positioned right below the central axis of the third dipole arm (221).
6. Phased array antenna according to one of the claims 1 to 5, characterized in that:
and the upper surface of the medium wide-angle matching layer (3) is coated with a super surface (6) of an open resonator ring structure.
7. The phased array antenna of claim 6, wherein:
when the working frequency of the antenna is 0 to 15GHz, the dielectric constant of the equivalent dielectric wide-angle matching layer of the super surface (6) is 3.66.
8. The phased array antenna of claim 6, wherein:
the thickness of the medium wide-angle matching layer (3) is 6mm, and the relative dielectric constant is 1.7.
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| CN112018525A (en) * | 2020-08-31 | 2020-12-01 | 电子科技大学 | Low-profile dual-polarization strong-coupling ultra-wideband planar dipole phased array antenna |
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| CN114696072A (en) * | 2020-12-31 | 2022-07-01 | 华为技术有限公司 | Tightly-coupled array antenna and network equipment |
| CN114744419A (en) * | 2022-03-14 | 2022-07-12 | 中国电子科技集团公司第二十九研究所 | Orthogonal polarization broadband wide-angle scanning phased array antenna |
| CN115117608A (en) * | 2022-07-05 | 2022-09-27 | 湖南航祥机电科技有限公司 | Tightly-coupled ultra-wideband dual-polarized phased array antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493625A (en) * | 2018-03-12 | 2018-09-04 | 电子科技大学 | The low scattering close coupling ultra wide band phased array of modified low section |
| WO2018236821A1 (en) * | 2017-06-20 | 2018-12-27 | Nuvotronics, Inc. | Broadband antenna array |
| CN109494464A (en) * | 2018-11-12 | 2019-03-19 | 电子科技大学 | A kind of low-cross polarization ultra wide band close coupling anti-pode dipole phased array antenna |
-
2019
- 2019-09-06 CN CN201910839951.0A patent/CN110707421A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018236821A1 (en) * | 2017-06-20 | 2018-12-27 | Nuvotronics, Inc. | Broadband antenna array |
| CN108493625A (en) * | 2018-03-12 | 2018-09-04 | 电子科技大学 | The low scattering close coupling ultra wide band phased array of modified low section |
| CN109494464A (en) * | 2018-11-12 | 2019-03-19 | 电子科技大学 | A kind of low-cross polarization ultra wide band close coupling anti-pode dipole phased array antenna |
Non-Patent Citations (1)
| Title |
|---|
| ERSIN YETISIR ET AL: "UWB dual-polarised dipole array with dielectric and FSS superstrate and 65° scanning", 《IET MICROWAVES, ANTENNA & PROPAGATION》 * |
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| CN111326855A (en) * | 2020-02-18 | 2020-06-23 | 中国电子科技集团公司第十四研究所 | FSS structure-based ultra-wide angle scanning octagonal patch antenna |
| CN112038755A (en) * | 2020-08-27 | 2020-12-04 | 成都天锐星通科技有限公司 | Circularly polarized phased array antenna based on tight coupling structure |
| CN112018525A (en) * | 2020-08-31 | 2020-12-01 | 电子科技大学 | Low-profile dual-polarization strong-coupling ultra-wideband planar dipole phased array antenna |
| CN112038753A (en) * | 2020-08-31 | 2020-12-04 | 电子科技大学 | Conformal dual-polarized strong-coupling ultra-wideband dipole phased array of thin wing |
| CN112038753B (en) * | 2020-08-31 | 2021-05-14 | 电子科技大学 | Conformal dual-polarized strong-coupling ultra-wideband dipole phased array of thin wing |
| CN112615143B (en) * | 2020-11-24 | 2022-04-22 | 中国电子科技集团公司第三十八研究所 | Planar broadband wide-angle scanning phased array antenna unit and phased array antenna |
| CN112615143A (en) * | 2020-11-24 | 2021-04-06 | 中国电子科技集团公司第三十八研究所 | Planar broadband wide-angle scanning phased array antenna unit and phased array antenna |
| CN112701471A (en) * | 2020-11-27 | 2021-04-23 | 电子科技大学 | All-dielectric integrated ultra-wideband low-profile polymorphic conformal phased array antenna |
| CN112701471B (en) * | 2020-11-27 | 2022-06-03 | 电子科技大学 | All-dielectric integrated ultra-wideband low-profile polymorphic conformal phased array antenna |
| CN114696072A (en) * | 2020-12-31 | 2022-07-01 | 华为技术有限公司 | Tightly-coupled array antenna and network equipment |
| CN114696072B (en) * | 2020-12-31 | 2023-09-01 | 华为技术有限公司 | Tightly coupled array antenna and network equipment |
| EP4250490A4 (en) * | 2020-12-31 | 2024-06-05 | Huawei Technologies Co., Ltd. | Tight coupling array antenna and network device |
| CN113964529A (en) * | 2021-10-22 | 2022-01-21 | 上海无线电设备研究所 | Ultra-wideband dual-polarized conformal antenna array |
| CN114069257A (en) * | 2021-11-17 | 2022-02-18 | 中国人民解放军国防科技大学 | Ultra-wideband dual-polarized phased array antenna based on strong coupling dipoles |
| CN114330112A (en) * | 2021-12-15 | 2022-04-12 | 南京理工大学 | Method for optimizing non-equidistant tightly-coupled array antenna |
| CN114330112B (en) * | 2021-12-15 | 2024-02-13 | 南京理工大学 | Unequal-spacing tightly-coupled array antenna optimization method |
| CN114597639A (en) * | 2022-02-09 | 2022-06-07 | 广东盛路通信科技股份有限公司 | Broadband low-frequency filter oscillator and multi-frequency base station antenna |
| CN114597639B (en) * | 2022-02-09 | 2023-11-28 | 广东盛路通信科技股份有限公司 | Broadband low-frequency filter oscillator and multi-frequency base station antenna |
| CN114744419A (en) * | 2022-03-14 | 2022-07-12 | 中国电子科技集团公司第二十九研究所 | Orthogonal polarization broadband wide-angle scanning phased array antenna |
| CN115117608A (en) * | 2022-07-05 | 2022-09-27 | 湖南航祥机电科技有限公司 | Tightly-coupled ultra-wideband dual-polarized phased array antenna |
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