CN109361053B - Low RCS microstrip antenna based on dual polarization Van Atta array - Google Patents
Low RCS microstrip antenna based on dual polarization Van Atta array Download PDFInfo
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- CN109361053B CN109361053B CN201810938119.1A CN201810938119A CN109361053B CN 109361053 B CN109361053 B CN 109361053B CN 201810938119 A CN201810938119 A CN 201810938119A CN 109361053 B CN109361053 B CN 109361053B
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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
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
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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
- 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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Abstract
The present invention proposes a kind of low RCS microstrip antenna based on dual polarization Van Atta array, including radiating element, coaxial feeder and be based on improved 2 × 2 dual polarization square matrix of dual polarization Van Atta array, 2 × 2 dual polarization square matrixes include first medium substrate and second medium substrate stacked on top of one another, first medium upper surface of base plate prints radiating element and surrounding 2 × 2 metal patches, print metal floor in lower surface, second medium base lower surface print 2 × 2 groups of microstrip feed lines and electrical length it is equal for two in one group of microstrip feed line being separately connected on two diagonal lines respectively with two the first micro-strip connecting lines and the second micro-strip connecting line in another group of microstrip feed line, it is passed by 2 × 2 groups of metal columns of 2 × 2 groups of slot-coupleds or connection patch and microstrip feed line that are etched on metal floor Delivery of energy amount is to metal patch.The present invention is different from the design of the prior art, can guarantee the radiation and low radar scattering cross section characteristic of antenna simultaneously.
Description
Technical field
The invention belongs to antenna technical fields, are related to a kind of low radar scattering cross section microstrip antenna, and in particular to Yi Zhongji
In the low radar scattering cross section microstrip antenna of the improved dual polarization square matrix of dual polarization Van Atta array, it is suitable for radiation characteristic
The radar system required with scattering properties.
Background technique
Radar cross section (RCS) is target under plane wave illumination, a kind of amount of Returning scattering power on assigned direction
Degree is the important parameter that the radar exploration technique characterization target can recognize characteristic.The purpose of RCS decrement is exactly control and reduction detection
The radar signature of target.Antenna is the main contributions source of the total radar cross section of platform, is used as communication equipment, it is necessary first to
Guarantee normally receiving and emitting for self electromagnetism wave, therefore realize the low radar cross section feature of antenna, and guarantees the spoke of itself
It is not significantly affected to penetrate characteristic, is maximum problem in the decrement field of antenna radar section.
Microstrip antenna is to enclose thin metal layer on one side as earth plate, another side etching on a thin-medium substrate
The metal patch of certain shapes is made in method, the antenna constituted using microstrip line or coaxial probe to patch, has weight
Measure light, small in size, thin profile and feature easy to process.
The decrement of microstrip antenna radar cross section at present be by load radar absorbing technology, shape technology and
What active or passive cancellation techniques were realized.Wherein, load radar absorbing technology and shape technology are more commonly used two kinds
Method.Radar absorbing can convert thermal energy for electromagnetic energy, realize Antenna RCS Reduction with this.Shape technology passes through
Radar signal is deviateed and threatens direction or reduces antenna area to reduce the RCS of antenna, but in low-frequency range, when antenna size and thunder
Up to operation wavelength almost even more hour, change influence very little of the shape to RCS, or even RCS can be enhanced, and can be certain
Deteriorate the radiance of antenna in degree.
Van Atta array by L.C.Van Atta nineteen fifty-nine propose, including dual-mode antenna with etc. electrical length connect transmitting-receiving
The transmission line of antenna, each bay had not only received signal but also had emitted signal, received signal by transmission line feed-in and received day
The symmetrical array element of line is radiate, the principle based on wavefront reversal, can be under the premise of not knowing arrival bearing, from turn
Send out a branch of be directed toward arrival bearing signal.Since dual-mode antenna polarization is identical, there are transceiver insulation difference to lack for Van Atta array
Point, to improve receive-transmit isolation, M G Christodoulou and D P Chrissoulidis is published in the paper on IEEE
“2D Van Atta Retrodirective Array Using Dual Polarized Two-port Square
A kind of dual polarization Van Atta array is proposed in Microstrip Patches ", including double about symmetrical four of array center
Polarize array element and two pairs connection about symmetrical two array element two of array center to micro-strip connecting line, wherein two pairs of micro-strip connecting lines
Electrical length differs 1/2 wavelength, since array element uses dual polarization form so that dual-mode antenna polarization orthogonal, improve transmitting-receiving every
From degree.Orthogonal Atta gusts of dual polarization Van of this transceiving electromagnetic wave polarization are possible to realize low radar scattering cross section characteristic.
Summary of the invention
Different technical solutions are conceived from the above-mentioned prior art the present invention provides a kind of, it is intended to guarantee antenna normal radiation
Under the premise of, realize the low radar scattering cross section characteristic of microstrip antenna.
A kind of low RCS microstrip antenna based on dual polarization Van Atta array, including radiating element 1,2 and of coaxial feeder
Based on improved 2 × 2 dual polarization square matrix of dual polarization Van Atta array, 2 × 2 dual polarization square matrix includes stacked on top of one another
One medium substrate 3 and second medium substrate 4, in which:
3 upper surface of first medium substrate is printed with 2 × 2 metal patches 5, and radiating element 1 is printed on four metals
In the square area that patch 5 is formed, the lower surface of the first medium substrate 3 is with being printed with the metal in 2 × 2 groups of gaps of etching
Plate 6, every group of gap are made of two mutually orthogonal H-types or rectangular aperture 7；
The lower surface of the second medium substrate 4 is printed with 2 × 2 groups of microstrip feed lines, and every group of microstrip feed line is mutual by two
Orthogonal T-type or rectangular microstrip feeder line 8 form, wherein be located at two on a diagonal line in one group of microstrip feed line respectively with it is another
Two in group microstrip feed line are connected by the first micro-strip connecting line 9, in one group of microstrip feed line on another diagonal line
Two are respectively connect with two in another group of microstrip feed line by the second micro-strip connecting line 10, and two to be connected microstrip feed line
It is mutually perpendicular to；The electrical length of the first micro-strip connecting line 9 is equal with the second micro-strip connecting line 10；
2 × 2 metal patch 5 and 2 × 2 group gaps and the position of 2 × 2 groups of microstrip feed lines are corresponding；It is described coaxial
The inner core of feeder line 2 is connected with radiating element 1, and outer core is connected with metal floor 6.
A kind of above-mentioned low RCS microstrip antenna based on dual polarization Van Atta array, the shape of the radiating element 1 are circle
Shape, the center of circle are located in the centre normal of 3 upper surface of first medium substrate, and the diameter of radiating element 1 is d:0.5 × λε≤d≤
0.6×λε, wherein λεFor the corresponding medium wavelength of center working frequency.
A kind of above-mentioned low RCS microstrip antenna based on dual polarization Van Atta array, 2 × 2 metal patches 5 are adopted
The side length of the square area formed with the metal patch array equidistantly arranged, four metal patches is K:0.5 × λ0
≤K≤0.9×λ0, wherein λ0For the corresponding wavelength of center working frequency.
A kind of above-mentioned low RCS microstrip antenna based on dual polarization Van Atta array, the metal patch 5, using length
For Lp, width WpRectangular patch, 0.35 × λε≤Lp≤0.5×λε, 0.35 × λε≤Wp≤0.5×λε, wherein λεCentered on
The corresponding medium wavelength of working frequency.
A kind of above-mentioned low RCS microstrip antenna based on dual polarization Van Atta array, 2 × 2 groups of microstrip feed lines, wherein
Two in one group of microstrip feed line on a diagonal line respectively with two the first micro-strips connecting in another group of microstrip feed line
Connecting line 9, symmetrical about this diagonal line, two in one group of microstrip feed line on another diagonal line are respectively micro- with another group
Second micro-strip connecting line 10 of two connections in ribbon feeder, it is symmetrical about another diagonal line.
A kind of low RCS microstrip antenna based on dual polarization Van Atta array, including radiating element 1,2 and of coaxial feeder
Based on improved 2 × 2 dual polarization square matrix of dual polarization Van Atta array, 2 × 2 dual polarization square matrix includes stacked on top of one another
One medium substrate 3, second medium substrate 4 and 2 × 2 group metal column, in which:
3 upper surface of first medium substrate is printed with 2 × 2 metal patches 5, and radiating element 1 is printed on four metals
In the square area that patch 5 is formed, the lower surface of the first medium substrate 3 is printed with metal floor 6；
The lower surface of the second medium substrate 4 is printed with 2 × 2 groups of microstrip feed lines, and every group of microstrip feed line is mutual by two
Orthogonal T-type or rectangular microstrip feeder line 8 form, wherein be located at two on a diagonal line in one group of microstrip feed line respectively with it is another
Two in group microstrip feed line are connected by the first micro-strip connecting line 9, in one group of microstrip feed line on another diagonal line
Two are respectively connect with two in another group of microstrip feed line by the second micro-strip connecting line 10, and two to be connected microstrip feed line
It is mutually perpendicular to；The electrical length of the first micro-strip connecting line 9 is equal with the second micro-strip connecting line 10；
The position of 2 × 2 metal patch 5 and 2 × 2 group metal columns and 2 × 2 groups of microstrip feed lines is corresponding；It is described same
The inner core of feeder shaft 2 is connected with radiating element 1, and outer core is connected with metal floor 6；
2 × 2 groups of metal columns, every group of metal column are made of two metal columns 11, the connection of each metal column 11 with it is corresponding
Metal patch 5 and microstrip feed line 8.
A kind of above-mentioned low RCS microstrip antenna based on dual polarization Van Atta array, the shape of the radiating element 1 are circle
Shape, the center of circle are located in the centre normal of first medium substrate 3, and the diameter of radiating element 1 is d:0.3 × λε≤d≤0.8×
λε, wherein λεFor the corresponding medium wavelength of center working frequency.
A kind of above-mentioned low RCS microstrip antenna based on dual polarization Van Atta array, 2 × 2 metal patches 5 are adopted
The side length of the square area formed with the metal patch array equidistantly arranged, four metal patches is K:0.5 × λ0
≤K≤0.9×λ0, wherein λ0For the corresponding wavelength of center working frequency.
A kind of above-mentioned low RCS microstrip antenna based on dual polarization Van Atta array, the metal patch 5, using length
For Lp, width WpRectangular patch, 0.2 × λε≤Lp≤0.7×λε, 0.2 × λε≤Wp≤0.7×λε, wherein λεFor center work
The corresponding medium wavelength of working frequency.
A kind of above-mentioned low RCS microstrip antenna based on dual polarization Van Atta array, 2 × 2 groups of microstrip feed lines, wherein
Two in one group of microstrip feed line on a diagonal line respectively with two the first micro-strips connecting in another group of microstrip feed line
Connecting line 9, symmetrical about this diagonal line, two in one group of microstrip feed line on another diagonal line are respectively micro- with another group
Second micro-strip connecting line 10 of two connections in ribbon feeder, it is symmetrical about another diagonal line.
Compared with prior art, the present invention having the advantage that
1. the present invention is respectively micro- with another group due to being used to two connected in one group of microstrip feed line on a diagonal line
Two the first micro-strip connecting lines in ribbon feeder and for connecting be located on another diagonal line in one group of microstrip feed line two
It is a respectively equal with two electrical length of the second micro-strip connecting line in another group of microstrip feed line, it realizes to dual polarization Van
The improvement of Atta array forms 2 × 2 dual polarization square matrixes, so that the polarization of ele direction phase of two neighboring metal patch reflection
Instead, it forms scattering to offset, realizes low radar scattering cross section characteristic.
2. the size for the square area that the present invention is formed by adjusting four metal patches eliminates bipolar due to introducing
Change the influence that square matrix generates antenna radiation characteristics, under the premise of ensure that antenna normal radiation, finally in working band
Reduce radar cross section.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the embodiment of the present invention 1；
Fig. 2 is the overlooking structure diagram of the embodiment of the present invention 1；
Fig. 3 is the metal floor schematic diagram of the embodiment of the present invention 1；
Fig. 4 is the microstrip feed line of the embodiment of the present invention 1 and the structural schematic diagram of micro-strip connecting line；
Fig. 5 is the overall structure diagram of the embodiment of the present invention 4；
Fig. 6 is the structural schematic diagram with reference to microstrip antenna；
Fig. 7 is the embodiment of the present invention 1 and the S parameter contrast curve chart with reference to microstrip antenna；
Fig. 8 is the embodiment of the present invention 1 and the directional diagram contrast curve chart with reference to microstrip antenna；
Fig. 9 is the embodiment of the present invention 1 and changes contrast curve chart with frequency with reference to microstrip antenna mono- static RCS；
Figure 10 is the embodiment of the present invention 1 and reference microstrip antenna in the case where 15 ° of oblique incidence radar waves irradiate, and dual station RCS is with side
Position angle change contrast curve chart.
Specific embodiment
In the following with reference to the drawings and specific embodiments, present invention is further described in detail:
Embodiment 1:
Referring to Fig.1, the present embodiment is included radiating element 1, coaxial feeder 2 and is improved based on dual polarization Van Atta array
2 × 2 dual polarization square matrixes, 2 × 2 dual polarization square matrix includes first medium substrate 3 and second medium substrate stacked on top of one another
4, first medium substrate 2 with a thickness of 1.5mm, permittivity εr=2.2, it is logical that coaxial feeder is provided on second medium substrate 4
The circular hole crossed, with a thickness of 0.635mm, cross sectional dimensions first medium substrate 2 is identical, permittivity εr=10.2, described
One medium substrate, 3 upper surface is printed with 2 × 2 metal patches (5), and radiating element 1 is printed on what four metal patches 5 were formed
In square area, wherein 2 × 2 metal patches 5 are using the metal patch array equidistantly arranged, the first medium
The lower surface of substrate 3 is printed with the metal floor 6 in 2 × 2 groups of gaps of etching, and every group of gap is by two mutually orthogonal H-type gaps 7
Composition, the inner core of coaxial feeder 2 are connected with radiating element 1, and outer core is connected with metal floor 6.
The lower surface of the second medium substrate 4 is printed with 2 × 2 groups of microstrip feed lines, and every group of microstrip feed line is mutual by two
Orthogonal T-type microstrip feed line 8 forms, wherein be located at two on a diagonal line in one group of microstrip feed line respectively with another group of micro-strip
Two in feeder line are connected by the first micro-strip connecting line 9, and two in one group of microstrip feed line on another diagonal line are each
It is connect with two in another group of microstrip feed line by the second micro-strip connecting line 10, and two to be connected microstrip feed line mutually hangs down
Directly, 2 × 2 metal patches, 5,2 × 2 groups of gaps and 2 × 2 groups of microstrip feed lines project to the position consistency on metal floor 6, micro-strip
Feeder line 8 couples energy to corresponding metal patch 5 by corresponding gap 7.
Referring to Fig. 2, the shape of radiating element 1 is circle, and diameter is d:0.3 × λε≤d≤0.8×λε, rectangular metal patch
5 length is Lp, width Wp: 0.2 × λε≤Lp≤0.7×λε, 0.2 × λε≤Wp≤0.7×λε, wherein λεCentered on work
The corresponding medium wavelength of frequency, the side length for the square area that four metal patches 5 are formed are K:0.5 × λ0≤K≤
0.9×λ0, wherein λ0For the corresponding wavelength of center working frequency.
The present embodiment takes but is not limited to radiating element diameter d=11.36mm, the long L of metal patchp=9.1mm, wide Wp=
9.1mm, the side length for the square area that four metal patches are formed are K=21mm.
Referring to Fig. 3,2 × 2 groups of gaps, an apertured shape is H-type, and size is equal, and every group of gap is by one
A transverse slot and a longitudinal slot along Y-direction in X direction forms, wherein transverse slot in X direction can motivate
It is vertical with it along the polarized electromagnetic wave of Y-direction out, along the transverse slot of Y-direction can motivate it is vertical with it in X direction
Polarized electromagnetic wave, second group of gap 72, third group gap 73 and the 4th group of gap 74 are respectively by first group of gap 72 along metal
The geometric center on floor 6 is rotated by 90 °, 180 °, 270 ° obtain.
First group of gap 71 is formed by the first gap 71A in X direction and along the second gap 71B of Y-direction, and second
Group gap 72 is formed by third gap 72A in X direction and along the 4th gap 72B of Y-direction, and third group gap 73 is by along the side X
To the 5th gap 73A and along Y-direction the 6th gap 73B form, the 4th group of gap 74 is by the 7th gap 74A in X direction
With the 8th gap 74B composition along Y-direction.
Referring to Fig. 4,2 × 2 groups of microstrip feed lines are fed by corresponding gap to metal patch, all microstrip feed lines
Shape is T-type, and size is equal, and every group of microstrip feed line is by a lateral microstrip feed line in X direction and one along Y-direction
Longitudinal microstrip feed line composition, wherein being located at the first microstrip feed line 81A and the 6th microstrip feed line 83B, second on one article of diagonal line
Microstrip feed line 81B, respectively by being connected about the diagonal symmetrical first micro-strip connecting line 9, is located at the 4th microstrip feed line 83A
Third microstrip feed line 82A and the 8th microstrip feed line 84B, the 4th microstrip feed line 82B and the 7th micro-strip on another article of diagonal line are presented
Line 84A is connected by being parallel to the another diagonal symmetrical second micro-strip connecting line 10, the first micro-strip connecting line 9 and the second micro-strip
10 electrical length of connecting line is equal.
The 6th is transferred to by the first micro-strip connecting line 9 by the received positive X direction polarized electromagnetic wave of the first microstrip feed line 81A
The positive Y-direction polarized electromagnetic wave that microstrip feed line 83B launches, and by the received positive X direction polarization electricity of third microstrip feed line 82A
Magnetic wave is transferred to the negative Y-direction polarized electromagnetic wave that the 8th microstrip feed line 84B launches, the two pole by the second micro-strip connecting line 10
Change it is contrary, formed scattering offset, to realize the microstrip antenna of low radar scattering cross section.By the way that the first micro-strip is connected
Line 9 is repeatedly bent, further such that its physical length is equal with the second micro-strip connecting line 10, is cut with increasing low radar scattering
Face characteristic frequency bandwidth.
Embodiment 2
The structure of the present embodiment is identical as the structure of embodiment 1, and following parameter makes an adjustment:
Radiating element diameter d=10.53mm, the long L of metal patchp=7.35mm, wide Wp=7.35mm, four metal patches
The side length for the square area that piece is formed is K=15.65mm.
Embodiment 3
The structure of the present embodiment is identical as the structure of embodiment 1, and following parameter makes an adjustment:
Radiating element diameter d=12.64mm, the long L of metal patchp=10.5mm, wide Wp=10.5mm, four metal patches
The side length for the square area that piece is formed is K=28.12mm.
Embodiment 4
Referring to Fig. 5, radiating element 1, coaxial feeder 2, first medium substrate 3, second medium substrate 4 in the present embodiment,
The structure snd size of metal patch 5, the first micro-strip connecting line 9 and the second micro-strip connecting line 10 are identical as in embodiment 1, with
Flowering structure makes an adjustment:
For better impedance matching, microstrip feed line 8 is changed to rectangle by T-type, and the rectangular aperture on metal floor 6 is changed to justify
Hole increases by 2 × 2 groups of metal columns, is used to the circular hole on metal floor 6 and connects the corresponding metal patch 5 in position and micro-strip therewith
Feeder line 8, microstrip feed line 8 transfer energy to metal patch 5 by metal column 11.
Embodiment 5
The structure of the present embodiment is identical as the structure of embodiment 4, and following parameter makes an adjustment:
Radiating element diameter d=10.53mm, the long L of metal patchp=7.35mm, wide Wp=7.35mm, four metal patches
The side length for the square area that piece is formed is K=15.65mm.
Embodiment 6
The structure of the present embodiment is identical as the structure of embodiment 4, and following parameter makes an adjustment:
Radiating element diameter d=12.64mm, the long L of metal patchp=10.5mm, wide Wp=10.5mm, four metal patches
The side length for the square area that piece is formed is K=28.12mm.
Below in conjunction with emulation experiment, technical effect of the invention is described further:
1, simulated conditions and content:
1.1 refer to Fig. 6, include radiating element 1, first medium substrate 3, metal floor 6 and coaxial feed with reference to microstrip antenna
Line 2, radiating element 1 are printed on the center of 3 upper surface of first medium substrate, and metal floor 6 is printed on first medium substrate 3
Lower surface, 2 inner core of coaxial feeder connect with radiating element 1, and outer core is then connect with metal floor 6.
1.2 carry out emulation meter using business simulation software ANSYS18.0 to embodiment 1 and with reference to the S parameter of microstrip antenna
It calculates, embodiment 1 and the S parameter contrast curve chart with reference to microstrip antenna are as shown in Figure 7.
1.3 imitate using business simulation software ANSYS18.0 to embodiment 1 and with reference to the far-field pattern of microstrip antenna
It really calculates, shown in the face E directional diagram contrast curve chart such as Fig. 8 (a) of embodiment 1 and reference microstrip antenna, embodiment 1 and reference are micro-
Shown in the face H directional diagram contrast curve chart such as Fig. 8 (b) with antenna.
1.4 utilize business simulation software ANSYS18.0 to embodiment 1 and with reference to microstrip antenna under electromagnetic wave vertical irradiation
Mono- static RCS carry out simulation calculation, embodiment 1 and with reference to microstrip antenna under X polarized electromagnetic wave vertical irradiation, mono- static RCS with
Frequency change contrast curve chart such as Fig. 9 (a) shown in, embodiment 1 and with reference to microstrip antenna under Y polarized electromagnetic wave vertical irradiation,
Mono- static RCS is with shown in frequency variation contrast curve chart such as Fig. 9 (b).
1.5 emulate using business simulation software ANSYS18.0 to embodiment 1 and with reference to the dual station RCS of microstrip antenna
It calculates, in the case where 15 ° of oblique incidence radar waves irradiate, dual station RCS is bent with orientation angles variation comparison for embodiment 1 and reference microstrip antenna
Line chart.
2, simulation result:
Referring to Fig. 7, abscissa is frequency, and ordinate is reflection coefficient S11, using S11≤- 10dB as standard, the present embodiment 1
Bandwidth be 9.27-9.8GHz, essentially coincided with the S11 of reference microstrip antenna, this illustrate 1 antenna of the embodiment of the present invention have with
With reference to the similar impedance bandwidth of micro-strip paster antenna.
Referring to Fig. 8 (a) and Fig. 8 (b), the greatest irradiation direction gain of 1 antenna of embodiment reaches 7.4dBi, in greatest irradiation side
To gain increase 0.4dBi relative to reference microstrip antenna, and the greatest irradiation direction of 1 antenna of embodiment and with reference to micro-
Far field radiation pattern with antenna essentially coincides, and illustrates that comparison is essentially unchanged with reference to the radiation characteristic of microstrip antenna embodiment 1.
Referring to Fig. 9 (a) and 9 (b), when x polarization and the polarized plane wave vertical irradiation of y arrive antenna surface, comparison is referred to
Microstrip antenna, the radar cross section of 1 antenna of embodiment reduce 10dBsm or more in 9.22-9.82GHz frequency band, and maximum subtracts
Contracting amount reaches 20dBsm.Antenna Operation bandwidth is completely covered in Radar cross-section redu-ction bandwidth, ensure that antenna in multipolarization situation
Under, it realizes with interior low radar cross section characteristic.
Referring to Fig.1 0, when the plane wave with antenna with identical working frequency, along 15 ° it is oblique be mapped to antenna surface when,
Comparison is with reference to microstrip antenna, it can be achieved that the Radar cross-section redu-ction of 10dBsm, illustrates to realize in ± 15 ° of angular range low
Radar cross section characteristics.
Claims (8)
1. a kind of low RCS microstrip antenna based on dual polarization Van Atta array, it is characterised in that: including radiating element (1), together
Feeder shaft (2) and it is based on improved 2 × 2 dual polarization square matrix of dual polarization Van Atta array, 2 × 2 dual polarization square matrix includes
First medium substrate (3) and second medium substrate (4) stacked on top of one another, in which:
First medium substrate (3) upper surface is printed with 2 × 2 metal patches (5), and four metal patches are formed just
The side length of square region is K:0.5 × λ0≤K≤0.9×λ0, wherein λ0For the corresponding wavelength of center working frequency；Radiating element
(1) it is printed in the square area of four metal patches (5) formation, the lower surface of the first medium substrate (3) is printed with
The metal floor (6) in 2 × 2 groups of gaps is etched, every group of gap is made of two mutually orthogonal H-types or rectangular aperture (7)；
The lower surface of the second medium substrate (4) is printed with 2 × 2 groups of microstrip feed lines, every group of microstrip feed line by two mutually just
The T-type or rectangular microstrip feeder line (8) of friendship form, wherein be located at two on a diagonal line in one group of microstrip feed line respectively with it is another
Two in group microstrip feed line are connected by the first micro-strip connecting line (9), are located on another diagonal line in one group of microstrip feed line
Two respectively connect with two in another group of microstrip feed line by the second micro-strip connecting line (10), and two to be connected micro-strip
Feeder line is mutually perpendicular to；The electrical length of the first micro-strip connecting line (9) is equal with second micro-strip connecting line (10)；
2 × 2 metal patches (5) and 2 × 2 groups of gaps and the position of 2 × 2 groups of microstrip feed lines are corresponding；The coaxial feed
The inner core of line (2) is connected with radiating element (1), and outer core is connected with metal floor (6).
2. a kind of low RCS microstrip antenna based on dual polarization Van Atta array according to claim 1, feature exist
In: the shape of the radiating element (1) is circle, and the center of circle is located in the centre normal of first medium substrate (3) upper surface, spoke
The diameter for penetrating unit (1) is d:0.5 × λε≤d≤0.6×λε, wherein λεFor the corresponding medium wavelength of center working frequency.
3. a kind of low RCS microstrip antenna based on dual polarization Van Atta array according to claim 1, feature exist
In: the metal patch (5) uses length for Lp, width WpRectangular patch, 0.35 × λε≤Lp≤0.5×λε, 0.35 ×
λε≤Wp≤0.5×λε, wherein λεFor the corresponding medium wavelength of center working frequency.
4. a kind of low RCS microstrip antenna based on dual polarization Van Atta array according to claim 1, feature exist
In 2 × 2 groups of microstrip feed lines, wherein be located at two on a diagonal line in one group of microstrip feed line respectively with another group of micro-strip
First micro-strip connecting line (9) of two connections in feeder line, it is symmetrical about this diagonal line, it is located on another diagonal line one group
Two the second micro-strip connecting lines (10) respectively being connect with two in another group of microstrip feed line in microstrip feed line, it is another about this
Diagonal line is symmetrical.
5. a kind of low RCS microstrip antenna based on dual polarization Van Atta array, it is characterised in that: including radiating element (1), together
Feeder shaft (2) and it is based on improved 2 × 2 dual polarization square matrix of dual polarization Van Atta array, 2 × 2 dual polarization square matrix includes
First medium substrate (3), second medium substrate (4) and 2x2 group metal column stacked on top of one another, in which:
First medium substrate (3) upper surface is printed with 2 × 2 metal patches (5), and four metal patches are formed just
The side length of square region is K:0.5 × λ0≤K≤0.9×λ0, wherein λ0For the corresponding wavelength of center working frequency；Radiating element
(1) it is printed in the square area of four metal patches (5) formation, the lower surface of the first medium substrate (3) is printed with
Metal floor (6)；
The lower surface of the second medium substrate (4) is printed with 2 × 2 groups of microstrip feed lines, every group of microstrip feed line by two mutually just
The T-type or rectangular microstrip feeder line (8) of friendship form, wherein be located at two on a diagonal line in one group of microstrip feed line respectively with it is another
Two in group microstrip feed line are connected by the first micro-strip connecting line (9), are located on another diagonal line in one group of microstrip feed line
Two respectively connect with two in another group of microstrip feed line by the second micro-strip connecting line (10), and two to be connected micro-strip
Feeder line is mutually perpendicular to；The electrical length of the first micro-strip connecting line (9) is equal with second micro-strip connecting line (10)；
The position of 2 × 2 metal patches (5) and 2 × 2 groups of metal columns and 2 × 2 groups of microstrip feed lines is corresponding；It is described coaxial
The inner core of feeder line (2) is connected with radiating element (1), and outer core is connected with metal floor (6)；
2 × 2 groups of metal columns, every group of metal column are made of two metal columns (11), the connection of each metal column (11) with it is corresponding
Metal patch (5) and microstrip feed line (8).
6. a kind of low RCS microstrip antenna based on dual polarization Van Atta array according to claim 5, feature exist
In: the shape of the radiating element (1) is circle, and the center of circle is located in the centre normal of first medium substrate (3), radiating element
(1) diameter is d:0.3 × λε≤d≤0.8×λε, wherein λεFor the corresponding medium wavelength of center working frequency.
7. a kind of low RCS microstrip antenna based on dual polarization Van Atta array according to claim 5, feature exist
In: the metal patch (5) uses length for Lp, width WpRectangular patch, 0.2 × λε≤Lp≤0.7×λε, 0.2 × λε
≤Wp≤0.7×λε, wherein λεFor the corresponding medium wavelength of center working frequency.
8. a kind of low RCS microstrip antenna based on dual polarization Van Atta array according to claim 5, feature exist
In 2 × 2 groups of microstrip feed lines, wherein be located at two on a diagonal line in one group of microstrip feed line respectively with another group of micro-strip
First micro-strip connecting line (9) of two connections in feeder line, it is symmetrical about this diagonal line, it is located on another diagonal line one group
Two the second micro-strip connecting lines (10) respectively being connect with two in another group of microstrip feed line in microstrip feed line, it is another about this
Diagonal line is symmetrical.
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265776A (en) * | 2019-05-08 | 2019-09-20 | 成都天锐星通科技有限公司 | A kind of broadband double-circle polarization paster antenna |
| CN110504534A (en) * | 2019-08-07 | 2019-11-26 | 深圳市航天华拓科技有限公司 | A kind of dual polarized antenna |
| WO2021128175A1 (en) * | 2019-12-26 | 2021-07-01 | 瑞声声学科技(深圳)有限公司 | Array antenna and base station |
| CN111585031A (en) * | 2020-06-22 | 2020-08-25 | 南京信息工程大学 | Multi-polarization microstrip antenna based on double-slit coupling structure |
| CN112490656B (en) * | 2020-12-08 | 2021-12-14 | 西安电子科技大学 | Small circularly polarized GPS-BD microstrip antenna with positioning capability |
| CN112952403B (en) * | 2021-01-27 | 2022-05-03 | 电子科技大学 | Dual-polarized array antenna with rectangular flat-top forming |
| CN113206384B (en) * | 2021-04-07 | 2022-02-11 | 中山大学 | C-band high-isolation simultaneous transmit-receive antenna |
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| CN114421142B (en) * | 2021-12-20 | 2023-05-09 | 中国电子科技集团公司第二十九研究所 | Broadband low-profile scattering self-cancellation antenna array |
| CN116979273A (en) * | 2022-04-22 | 2023-10-31 | 华为技术有限公司 | Reflective antenna, antenna array, signal relay device, and vehicle |
| CN115411512A (en) * | 2022-08-01 | 2022-11-29 | 电子科技大学 | Planar passive two-dimensional wide-angle Van Atta reverse array antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639914A (en) * | 2002-03-06 | 2005-07-13 | 独立行政法人情报通信研究机构 | Microstrip antenna |
| CN201549592U (en) * | 2009-09-27 | 2010-08-11 | 西安威姆电子有限公司 | Novel dual polarization microstrip antenna |
| CN101895015A (en) * | 2010-04-01 | 2010-11-24 | 江苏联海通信技术有限公司 | Micro-strip antenna |
| CN102544724A (en) * | 2012-03-09 | 2012-07-04 | 哈尔滨工业大学（威海） | Dual-polarized single pulse broadband microstrip antenna device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8102313B2 (en) * | 2008-03-11 | 2012-01-24 | Deutsches Zentrum Fuer Luft- Und Raumfahrt E.V., | Retroreflecting transponder |
| US8466776B2 (en) * | 2010-07-01 | 2013-06-18 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Extended range passive wireless tag system and method |
| CN103001005B (en) * | 2012-10-25 | 2014-12-17 | 中兴通讯股份有限公司 | Device and mobile terminal for lowering specific absorption rate of electromagnetic radiation |
| US9715609B1 (en) * | 2013-03-11 | 2017-07-25 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Systems, apparatuses and methods for beamforming RFID tags |
| CN105048108B (en) * | 2015-06-30 | 2018-01-23 | 南京理工大学 | Recall three reconfigurable function shared aperture antenna battle arrays in time-modulation Fan Ata directions |
| US20170264022A1 (en) * | 2016-03-08 | 2017-09-14 | The United States Of America As Represented By The Secretary Of The Navy | Method to Locate and Identify Artificial Objects in Space Using Van Atta Array Retro-Reflectors and RADAR Systems |
| CN106329106B (en) * | 2016-10-13 | 2019-10-18 | 哈尔滨工程大学 | A kind of broadband high-isolation low-cross polarization Dual-polarized Micro Strip Array based on SIW technology |
| CN206250392U (en) * | 2016-11-12 | 2017-06-13 | 东莞市森岭智能科技有限公司 | A kind of high-gain dual polarized panel orients patch array WIFI antennas |
-
2018
- 2018-08-17 CN CN201810938119.1A patent/CN109361053B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639914A (en) * | 2002-03-06 | 2005-07-13 | 独立行政法人情报通信研究机构 | Microstrip antenna |
| CN201549592U (en) * | 2009-09-27 | 2010-08-11 | 西安威姆电子有限公司 | Novel dual polarization microstrip antenna |
| CN101895015A (en) * | 2010-04-01 | 2010-11-24 | 江苏联海通信技术有限公司 | Micro-strip antenna |
| CN102544724A (en) * | 2012-03-09 | 2012-07-04 | 哈尔滨工业大学（威海） | Dual-polarized single pulse broadband microstrip antenna device |
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