Results 181 to 190 of about 10,722 (267)
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A Novel Wideband Tightly Coupled Dual-Polarized Reflectarray Antenna
IEEE Transactions on Antennas and Propagation, 2023In this communication, a novel tightly coupled dual-polarized reflectarray antenna is presented. The antenna consists of a dual-polarized feed antenna and a wideband dual-polarized reflecting surface.
Wenting Li +5 more
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A Wideband Low-Cost Reconfigurable Reflectarray Antenna With 1-Bit Resolution
IEEE Transactions on Antennas and Propagation, 2022A wideband 1 bit reflectarray antenna (RA) with two-dimensional (2-D) electronically beam-scanning capability is presented in this article. Based on the basic structure of the magnetoelectric (ME) dipole antenna, a novel reconfigurable RA (RRA) element ...
B. Xiang, Xin Dai, K. Luk
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Optimization of a Gangbuster Reflectarray Antenna
2005 IEEE Antennas and Propagation Society International Symposium, 2005In this paper we discuss the optimization of the design, carried out through a pseudo-random optimization algorithm, of a gangbuster reflectarray antenna. The variation of reflection coefficient phase on the reflectarray surface is achieved by varying the length of the local wires in the gangbuster surface. For the optimization, a genetic algorithm has
MUSSETTA, MARCO +4 more
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IEEE Transactions on Antennas and Propagation, 2023
In this communication, an optically transparent reflectarray antenna based on indium tin oxide (ITO) material is presented. The reflectarray is composed of a patterned ITO array, two quartz glass substrates, and an ITO ground.
Longzhu Cai +5 more
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In this communication, an optically transparent reflectarray antenna based on indium tin oxide (ITO) material is presented. The reflectarray is composed of a patterned ITO array, two quartz glass substrates, and an ITO ground.
Longzhu Cai +5 more
semanticscholar +1 more source
A Multipolarized Metal-Only Reflectarray Antenna
IEEE Transactions on Antennas and Propagation, 2023A multipolarized metal-only reflectarray antenna (MPMORA) is proposed and investigated in this communication. The reflectarray is an all-metal planar structure and is composed of unit-cells featuring perpendicularly placed size-variable slots carved in a
Qiqi Zhou, Lu Guo
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A Wideband 1-Bit Reconfigurable Reflectarray Antenna at Ku-Band
IEEE Antennas and Wireless Propagation Letters, 2022In this letter, a wideband high-efficiency 1-bit 16 × 16 reconfigurable reflectarray antenna (RRA) is proposed. First, a wideband and low loss 1-bit RRA element is designed.
Shihua Zhou +6 more
semanticscholar +1 more source
IEEE Transactions on Antennas and Propagation, 1963
A class of antennas that utilizes arrays of elementary antennas as reflecting surfaces has been investigated. An antenna of this type is here called a Reflectarray. It has been found that the Reflectarray combines much of the simplicity of the reflector-type antenna with the performance versatility of the array type. The reflecting surfaces employed in
D. Berry, R. Malech, W. Kennedy
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A class of antennas that utilizes arrays of elementary antennas as reflecting surfaces has been investigated. An antenna of this type is here called a Reflectarray. It has been found that the Reflectarray combines much of the simplicity of the reflector-type antenna with the performance versatility of the array type. The reflecting surfaces employed in
D. Berry, R. Malech, W. Kennedy
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A Low-RCS Circularly Polarized Reflectarray Antenna With a Linearly Polarized Feed
IEEE Transactions on Antennas and Propagation, 2023A low-radar cross Section (RCS) circularly polarized (CP) reflectarray antenna with a linearly polarized (LP) feed is designed. The out-of-band RCS of the reflectarray for both the TE and TM polarized incident waves is reduced by replacing its ground ...
Debidas Kundu +4 more
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A Reconfigurable Origami Reflectarray
2020 14th European Conference on Antennas and Propagation (EuCAP), 2020This paper presents a novel Miura-Ori origami reflectarray unit-cell. This origami inspired unit-cell allows efficient folding\unfolding, high packing efficiency, easy deployment and frequency reconfigurable behavior. The unitcell is composed of 4 parallelogram patches that can achieve 560° phase shift.
Abdul-Sattar Kaddour +2 more
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A Single-Layered Broadband Reflectarray Employing 0.15-Wavelength Elements
IEEE Antennas and Wireless Propagation Letters, 2023A single-layered broadband reflectarray antenna employing 0.15-wavelength elements is proposed and investigated in this letter. The unit cell is constituted by a ring patch inserted with an interior concave arm and arranged in a grid size of 4.5 mm × 4.5
Meijin Guo +3 more
semanticscholar +1 more source