CN116231305A - Cylindrical conformal active super-surface antenna based on amplitude regulation and control - Google Patents
Cylindrical conformal active super-surface antenna based on amplitude regulation and control Download PDFInfo
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- 238000010168 coupling process Methods 0.000 claims abstract description 41
- 238000005859 coupling reaction Methods 0.000 claims abstract description 41
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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
- H01Q1/36—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
- 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
- H01Q21/0006—Particular feeding systems
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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
- H01Q21/065—Patch antenna array
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a cylindrical conformal active super-surface antenna based on amplitude regulation and control, which is used for solving the problem that the traditional active super-surface antenna can only scan beams on a plane, and comprises a feed structure and a radiation structure, wherein the feed structure comprises a dielectric substrate and metal patches printed on the upper surface and the lower surface of the dielectric substrate, the metal patches on the upper surface are etched with coupling gaps, and metallized through holes are arranged on two sides of the feed structure; the radiation structure comprises a dielectric substrate and a radiation patch printed on the upper surface of the dielectric substrate, wherein two H-shaped gaps are etched in the metal patch in the radiation patch, the strip-shaped metal patch is loaded with a PIN diode, and two ends of the PIN diode are respectively connected with the lower surface metal of the feed structure and an external bias circuit through a short circuit metallization via hole and a direct current bias metallization via hole; the direct-current bias metallization via hole applied voltage controls the radiation intensity distribution of the radiation patch array, realizes beam scanning of the cylindrical conformal active super-surface antenna, and can be used for a communication system of a cylindrical structure carrier platform.
Description
Technical Field
The invention belongs to the technical field of microwaves, relates to a super-surface antenna, and in particular relates to a cylindrical conformal active super-surface antenna based on amplitude regulation and control, which can be used for a communication system with a cylindrical structure carrier platform.
Background
The super-surface antenna is widely applied to receiving and transmitting antennas of a communication system due to the characteristics of simple structure, low cost and strong electromagnetic wave control. The super-surface antennas are classified into passive super-surface antennas and active super-surface antennas according to whether or not they are loaded with active devices. The passive super-surface antenna can form high-directivity beams by etching specific unit structures and arranging the unit structures according to a certain rule. However, once the passive super-surface antenna is processed, the beam direction is fixed, and scanning of the beam cannot be achieved. The active super-surface antenna can realize dynamic regulation and control of electromagnetic performance of the super-surface unit through loading of an active device, so that scanning of an antenna beam is realized. Most of the existing active super-surface antennas are in plane structures, and when the antennas need to be conformal to a cylindrical carrier platform, beam scanning of the active super-surface antennas is difficult to achieve on the cylindrical carrier platform.
For example, patent application publication number CN 112751183A entitled "a digitally encoded beam scanning circularly polarized leaky-wave antenna" discloses a digitally encoded circularly polarized active ultra-surface antenna with beam scanning capabilities, comprising in particular: an upper microstrip structure, a dielectric substrate and a bottom metal floor; two sides of the microstrip line are connected with the branch knot and the PIN diode, and are communicated with the bottom metal floor through the metallized through holes; the bottom metal floor is etched with an opening annular gap to serve as a circular polarized radiator. The on-off state of the PIN diode is controlled, so that the circular polarized beam pointing direction of the antenna is controlled. The invention obtains the beam direction under different coding states by coding and combining the units. However, as the number of elements increases, the number of code combinations increases exponentially, and it is difficult to achieve beam scanning for large-scale arrays. In addition, the invention only realizes the beam scanning of the active super-surface antenna under the planar structure, and when the antenna needs to be conformal to the cylindrical carrier, the invention can not realize the beam scanning of the active super-surface antenna under the cylindrical conformal
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a cylindrical conformal active super-surface antenna based on amplitude regulation and control, which is used for solving the technical problem that the beam scanning of the active super-surface under the cylindrical conformal design cannot be realized in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a cylindrical conformal active super-surface antenna based on amplitude regulation, comprising a feeding structure 1 and a radiation structure 2 which are mutually laminated, wherein:
the feed structure 1 comprises a rectangular flexible first dielectric substrate 11, a first metal patch 12 printed on the lower surface of the first dielectric substrate 11 and a second metal patch 13 printed on the upper surface of the first dielectric substrate 11; two parallel coupling gap arrays are etched on the second metal patch 13, and each coupling gap array is composed of N coupling gaps 131 which are periodically arranged; the first dielectric substrate 11 is provided with a metallized via linear array 14 for connecting the first metal patch 12 and the second metal patch 13 along the length direction of the coupling gap arrays and outside each coupling gap array; wherein N is more than or equal to 2;
the radiation structure 2 comprises a rectangular flexible second dielectric substrate 21 and patch arrays which are printed on the upper surface of the second dielectric substrate and correspond to the positions of the coupling gap arrays, and each patch array consists of N radiation patches 22 which are periodically arranged; the radiation patch 22 includes a rectangular metal patch 221 and a strip-shaped metal patch 222 located on a side of the rectangular metal patch 221 near the long side of the second dielectric substrate 21; two H-shaped gaps 2211 are etched on the rectangular metal patch 221; the strip-shaped metal patch 222 is loaded with an active device 2221; two ends of the active device 2221 are respectively connected with the first metal patch 12 and the external bias circuit through the short-circuit metallized via hole 3 and the direct-current bias metallized via hole 4 which penetrate through the first dielectric substrate 11 and the second dielectric substrate 21;
bending the feed structure 1 and the radiation structure 2 into a carrier shape to be conformal to form a hollow cylindrical structure with the first dielectric substrate 11 inside and the second dielectric substrate 21 outside;
by applying voltages of different voltage values to the direct-current bias metallization via 4, the active device 2221 is controlled to present different working states, so that the radiation intensity I of each radiation patch 22 is realized n Regulation and control of (2); by adjusting the radiation intensity of each radiation patch 22 in the radiation structure 2, the beam scanning of the cylindrical conformal active super-surface antenna is further realized; radiation intensity I of nth radiation patch 22 in radiation structure 2 n The calculation formula of (2) is as follows:
wherein ,
λ 0 operating frequency wavelength epsilon for cylindrical conformal active super-surface antenna r For the relative permittivity of the first dielectric substrate 11, w is the spacing between two rows of metallized via linear arrays 14, c is the spacing between the centers of two adjacent metallized vias in the metallized via linear arrays 14, d is the diameter of the metallized via in the metallized via linear arrays 14, x n For the distance θ of the nth radiation patch relative to the starting radiation patch in the array of radiation patches 0 Beam pointing, k for cylindrical conformal active super surface antenna 0 Being propagation constant in free space ρ 0 The radius of curvature of a conformal active super-surface antenna for a cylinder.
The cylindrical conformal active super-surface antenna based on amplitude regulation, the second metal patch 13 has an etched coupling slot 131 with an H-shaped coupling slot structure, and the transverse branches of the H-shaped coupling slot are parallel to the metallized via linear array 14; and the coupling slits 131 in one coupling slit array etched on the second metal patch 13 are arranged in a staggered manner with the coupling slits 131 in the other coupling slit array at the corresponding positions, and the connection line between the middle point of the transverse branch of the H-shaped structure of the coupling slit 131 in the one coupling slit array and the middle point of the two adjacent coupling slits 131 in the other coupling slit array is parallel to the short side of the first dielectric substrate 11.
In the cylindrical conformal active super-surface antenna based on amplitude regulation, the transverse branches of the H-shaped slot 2211 etched on the rectangular metal patch 221 are parallel to the long side of the rectangular metal patch 221, the two longitudinal branches adopt a composite structure consisting of a section of circular arc and two straight lines, and the intersection point of the two straight lines is connected with the transverse branches of the H-shaped slot 2211.
The cylindrical conformal active super-surface antenna based on amplitude regulation, the second metal patch 13 is provided with two trapezoidal metal patches 132, which are respectively used for impedance matching with the feed input port and the load port.
The active device 2221 is a PIN diode or a varactor diode.
Compared with the prior art, the invention has the following advantages:
in the invention, the active devices are controlled to present different working states by applying voltages with different voltage values to the direct-current bias metallized via holes, thereby realizing the radiation intensity I of each radiation patch n Regulation and control of (2); the radiation intensity required by each radiation patch in the radiation structure is obtained through calculation according to the beam direction required by the cylindrical conformal active super-surface antenna, and the problem that the existing active super-surface antenna can only perform beam scanning in a planar state is solved by adjusting the radiation intensity distribution of each radiation patch in the radiation structure, so that the beam scanning of the active super-surface antenna under the cylindrical conformal design is realized.
Drawings
FIG. 1 is an expanded schematic view of the overall structure of the present invention;
fig. 2 (a) is a schematic diagram of a second metal patch of the feed structure of the present invention;
FIG. 2 (b) is a schematic diagram of a radiating patch of the radiating structure of the present invention;
FIG. 3 (a) is a simulation result of two state transmission coefficients of the radiation patch of the present invention;
FIG. 3 (b) is a simulation result of two states of the radiation patch of the present invention;
FIG. 3 (c) is a simulation result of the radiation gain of the radiation patch of the present invention in two states;
FIG. 4 (a) is a simulation result of a negative scan of a cylindrical conformal active ultra-surface antenna of the present invention;
fig. 4 (b) is a simulation result of forward scanning of a cylindrical conformal active super surface antenna of the present invention.
Detailed Description
The invention will be described in further detail with reference to the drawings and the specific examples.
Referring to fig. 1, a feeding structure 1 and a radiating structure 2 are stacked on each other, wherein the feeding structure 1 comprises a rectangular flexible first dielectric substrate 11, a first metal patch 12 printed on the lower surface of the first dielectric substrate 11, and a second metal patch 13 printed on the upper surface of the first dielectric substrate 11; two parallel coupling gap arrays are etched on the second metal patch 13, and each coupling gap array is composed of 27 coupling gaps 131 which are periodically arranged; referring to fig. 2 (a), the H-shaped coupling slit 131 has a structural parameter of l 4 ＝8mm，l 5 ＝5mm，w 4 ＝1mm，w 5 =4mm; the first dielectric substrate 11 is provided with two metallized via hole linear arrays 14 which are positioned at two sides of the length direction of the slot array and are used for connecting the first metal patch 12 and the second metal patch 13, the spacing w=50 mm between two rows of metallized via hole linear arrays 14, the spacing c=2 mm between the centers of two adjacent metallized via holes, and the diameter d=1.6 mm of the metallized via holes; the first dielectric substrate 11 has a thickness of 2mm and a relative dielectric constant=4.4;
the radiation structure 2 comprises a rectangular flexible second dielectric substrate 21 and patch arrays which are printed on the upper surface of the second dielectric substrate and correspond to the positions of the coupling gap arrays, and each patch array consists of 27 radiation patches 22 which are periodically arranged; the radiation patch 22 includes a rectangular metal patch 221 and a strip-shaped metal patch 222 located on a side of the rectangular metal patch 221 near the long side of the second dielectric substrate 21; two H-shaped gaps 2211 are etched on the rectangular metal patch 221; an active device 2221 is loaded on the strip-shaped metal patch 222, the active device 2221 is a PIN diode, the equivalent parameter of the PIN diode is 0.2pf in the off state, and the equivalent parameter of the PIN diode is 2Ω in the on state; two ends of the active device 2221 are respectively connected with the first metal patch 12 and the external bias circuit through the short-circuit metallized via hole 3 and the direct-current bias metallized via hole 4 which penetrate through the first dielectric substrate 11 and the second dielectric substrate 21; the second dielectric substrate 21 has a thickness of 2mm and a relative dielectric constant=4.4;
bending the feed structure 1 and the radiation structure 2 into a carrier shape to be conformal to form a hollow cylindrical structure with the first dielectric substrate 11 inside and the second dielectric substrate 21 outside;
referring to fig. 2 (b), the rectangular metal patch 221 has a transverse branch of an H-shaped slot 2211 etched thereon parallel to a long side of the rectangular metal patch 221, and two longitudinal branches adopt a composite structure comprising a section of arc and two straight lines, wherein two ends of the arc are respectively connected with two ends of the two straight lines, an intersection point of the other ends of the two straight lines is connected with the transverse branch of the H-shaped slot 2211, the structural parameters are that adjacent intervals p=11 mm of the radiating patches 22, the structural dimension of the rectangular patch 221 is a=25 mm, and l 1 The structural dimension of the strip-shaped patch 222 is w 1 =1.2 mm, b=0.6 mm, structural parameter of h-shaped slit 2211 is l 2 ＝6mm，l 3 ＝10mm，w 2 ＝0.6mm，w 3 =0.8mm. The two longitudinal branches of the H-shaped slot 2211 can excite the current consistent with the arrangement direction of the radiation patches 22, so that the staggered arrangement state of the coupling slots 131 is ensured, the reverse phase difference is not introduced while the space is reduced, and the wide-angle beam scanning of the cylindrical conformal active super-surface antenna is realized.
The working principle of the invention is as follows:
the cylindrical conformal active super-surface antenna in the invention can be seenActing as a cylindrical conformal traveling wave antenna. For planar traveling wave antennas, there is an inherent phase difference k between radiating patches g * And p are the distances between adjacent radiation patches, so that the radiation intensity of each radiation patch of the planar traveling wave antenna is controlled in the antenna design process, and the antenna beam direction is consistent with the expected direction. For a planar traveling wave antenna, the beam direction is theta 0 When the radiation intensity of the nth radiation patch is calculated as follows:
I n ＝cos(k g *x n -k 0 *sin(θ 0 ))
wave vector of radiation wave when it is cylindrical conformal
The method comprises the following steps: />
And the field point of the curved surface can be resolved into: />
Therefore, the wavefront phase information of the radiation wave on the curved surface is: />
Referring to fig. 1, the 0-degree radiation direction of a cylindrical conformal active super-surface antenna with positive z-axis,/is>
For a point of a cylindrical conformal active super-surface antenna to be at an angle to the positive z-axis, the coordinates can be expressed as:
so that
Thus, a cylindrical conformal active super-surface antenna has a beam pointing at θ 0 When the nth radiation patch radiates with intensityThe calculation formula is modified as follows:
the radiation intensity of each radiation patch obtained by calculation in the above formula is a continuous value, and the active device 2221 in the present invention selects a PIN diode, and the equivalent parameter of the PIN diode is 0.2pf in the off state, and the equivalent parameter of the PIN diode is 2Ω in the on state. Two working states corresponding to the PIN diode can only simulate two radiation intensities, so that discrete treatment is required for the radiation intensity of the continuous numerical value of the radiation patch; therefore, the working state of the PIN diode on the nth radiation patch is as follows:
wherein, 1 represents that the PIN diode works in an on state, 0 represents that the PIN diode works in an off state, namely, when the radiation intensity is nonnegative, the diode works in the off state, the radiation intensity of the radiation patch is maximum, and when the radiation intensity is negative, the diode works in the on state, and the radiation intensity of the radiation patch is minimum. The on and off of the PIN diode is controlled by applying different voltages to the DC bias metallized via 4, so that the beam scanning of the cylindrical conformal active super-surface antenna can be realized by applying the voltages to each diode according to the diode working state distribution.
The technical effects of the present invention are further described below through simulation experiments.
1. Conditions and content are simulated.
The following simulation experiments conducted based on the embodiment of the invention are all completed by using CST MICROWAVE STUDIO simulation software.
Simulation 1, which simulates the electrical performance parameters of the radiation patch in the embodiment of the invention, wherein the simulation results are shown in fig. 3 (a), 3 (b) and 3 (c);
2. simulation result analysis
Referring to fig. 3 (a), in the embodiment of the present invention, by simulating the propagation coefficients in the radiation patch in two working states of the PIN diode, the difference between the transmission coefficients in the two states is greater than-0.6 dB at the working frequency point, which proves that some energy is radiated through the radiation patch in the radiation state.
Referring to fig. 3 (b), in the embodiment of the present invention, phases of propagation coefficients in a radiation patch in two working states of a PIN diode are simulated, and at a working frequency point, a transmission phase difference value of the two states is less than 2 degrees, so that smaller errors are introduced in different states of the radiation patch, thereby controlling the accuracy of beam scanning.
Referring to fig. 3 (c), in the embodiment of the present invention, by simulating the radiation intensities of the radiation patches in two working states of the PIN diode, the radiation gain difference of the radiation patches in the two states is 11dB, so as to satisfy the working states that the radiation patches have two radiation intensities.
Referring to fig. 4 (a), by performing a negative scan angle simulation on the cylindrical conformal active super-surface antenna at a scan interval of 10 degrees, it can be seen that the cylindrical conformal active super-surface antenna can scan from 0 degrees to-60 degrees at an interval of 10 degrees, so as to satisfy the accurate scan of the beam and the large angle beam pointing.
Referring to fig. 4 (b), by performing forward scanning angle simulation on the cylindrical conformal active super-surface antenna at a scanning interval of 10 degrees, it can be seen that the cylindrical conformal active super-surface antenna can scan from 0 degrees to 60 degrees at an interval of 10 degrees, so as to satisfy accurate scanning of a beam and large-angle beam pointing.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the invention, but it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the innovative concepts of the invention, but these variations fall within the scope of the invention.
Claims (5)
1. A cylindrical conformal active super-surface antenna based on amplitude regulation comprises a feeding structure (1) and a radiation structure (2) which are mutually laminated; the method is characterized in that:
the feed structure (1) comprises a rectangular flexible first dielectric substrate (11), a first metal patch (12) printed on the lower surface of the first dielectric substrate (11) and a second metal patch (13) printed on the upper surface of the first dielectric substrate; two parallel coupling gap arrays are etched on the second metal patch (13), and each coupling gap array consists of N coupling gaps (131) which are periodically arranged; the first dielectric substrate (11) is provided with a metallized via linear array (14) which is used for connecting the first metal patch (12) and the second metal patch (13) along the length direction of the coupling gap arrays and is positioned at the outer side of each coupling gap array; wherein N is more than or equal to 2;
the radiation structure (2) comprises a rectangular flexible second dielectric substrate (21) and patch arrays which are printed on the upper surface of the second dielectric substrate and correspond to the positions of the coupling gap arrays, and each patch array consists of N radiation patches (22) which are periodically arranged; the radiation patch (22) comprises a rectangular metal patch (221) and a strip-shaped metal patch (222) positioned on one side of the rectangular metal patch (221) close to the long side of the second dielectric substrate (21); two H-shaped gaps (2211) are etched on the rectangular metal patch (221); the strip-shaped metal patch (222) is loaded with an active device (2221); two ends of the active device (2221) are respectively connected with the first metal patch (12) and the external bias circuit through a short-circuit metallized via hole (3) penetrating through the first dielectric substrate (11) and the second dielectric substrate (21) and a direct-current bias metallized via hole (4);
bending the feed structure (1) and the radiation structure (2) into a carrier shape to be conformal to form a hollow cylindrical structure with a first dielectric substrate (11) inside and a second dielectric substrate (21) outside;
by applying voltages with different voltage values to the direct-current bias metallization via holes (4), the active device (2221) is controlled to present different working states, so that the radiation intensity I of each radiation patch (22) is realized n Regulation and control of (2); the beam scanning of the cylindrical conformal active super-surface antenna is further realized by adjusting the radiation intensity of each radiation patch (22) in the radiation structure (2); nth spoke in radiating structure (2)Radiation intensity I of the radiation patch (22) n The calculation formula of (2) is as follows:
wherein ,
λ 0 operating frequency wavelength epsilon for cylindrical conformal active super-surface antenna r For the relative dielectric constant of the first dielectric substrate (11), w is the spacing between two rows of metallized via linear arrays (14), c is the spacing between the centers of two adjacent metallized vias in the metallized via linear arrays (14), d is the diameter of the metallized via in the metallized via linear arrays (14), x n For the distance θ of the nth radiation patch relative to the starting radiation patch in the array of radiation patches 0 Beam pointing, k for cylindrical conformal active super surface antenna 0 Being propagation constant in free space ρ 0 The radius of curvature of a conformal active super-surface antenna for a cylinder.
2. The cylindrical conformal active super surface antenna based on amplitude modulation according to claim 1, wherein said second metal patch (13) has an H-shaped coupling slot structure for the coupling slot (131) etched thereon, and the lateral branches of the H-shaped coupling slot are parallel to the metallized via linear array (14); and the coupling gaps (131) in one coupling gap array etched on the second metal patch (13) are arranged in a staggered manner with the coupling gaps (131) in the other coupling gap array at the corresponding positions, and the connecting line of the middle points of the transverse branches of the H-shaped structures of the coupling gaps (131) in the one coupling gap array and the middle points of the adjacent two coupling gaps (131) in the other coupling gap array is parallel to the short side of the first dielectric substrate (11).
3. The cylindrical conformal active super surface antenna based on amplitude modulation according to claim 1, wherein the rectangular metal patch (221) has a transverse branch of the H-shaped slot (2211) etched thereon parallel to the long side of the rectangular metal patch (221), the two longitudinal branches adopt a composite structure composed of a section of arc and two straight lines, and the intersection point of the two straight lines is connected with the transverse branch of the H-shaped slot (2211).
4. The cylindrical conformal active super surface antenna based on amplitude modulation according to claim 1, wherein said second metal patch (13) is provided with two trapezoid metal patches (132) for impedance matching with a feed input port and with a load port, respectively.
5. The amplitude modulation based cylindrical conformal active super surface antenna according to claim 1, wherein said active device (2221) employs a PIN diode or a varactor diode.
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| CN202310130215.4A CN116231305A (en) | 2023-02-17 | 2023-02-17 | Cylindrical conformal active super-surface antenna based on amplitude regulation and control |
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| CN202310130215.4A CN116231305A (en) | 2023-02-17 | 2023-02-17 | Cylindrical conformal active super-surface antenna based on amplitude regulation and control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117060097A (en) * | 2023-10-13 | 2023-11-14 | 电子科技大学 | Common-caliber antenna based on reflection array and leaky-wave antenna array |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117060097A (en) * | 2023-10-13 | 2023-11-14 | 电子科技大学 | Common-caliber antenna based on reflection array and leaky-wave antenna array |
| CN117060097B (en) * | 2023-10-13 | 2024-01-19 | 电子科技大学 | Common-caliber antenna based on reflection array and leaky-wave antenna array |
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