Results 41 to 50 of about 302,217 (218)
Dual-Band Frequency Selective Surface-Backed Reflectarray for High-Speed Ka-Band Satellites
Applied SciencesA dual-band, dual-polarized frequency selective surface (FSS)-backed multilayer reflectarray antenna is designed for 5G high-speed satellites operating at Ka-band uplink and downlink frequencies (20/30 GHz).
Ahmet Hulusi Gülseren +2 more
doaj +1 more source
Efficient Design of the Microstrip Reflectarray Antenna by Optimizing the Reflection Phase Curve
International Journal of Antennas and Propagation, 2016 The microstrip reflectarray antenna is an attractive directional antenna combining advantages of both the reflector and the microstrip array antenna. For the design of this kind of antenna, the conventional method, which is based on the reflection phase ...
Xing Chen +3 more
doaj +1 more source
Dual-Layer Beamscanning Reflectarray Antenna Operating at Ku-Band
Journal of High-Frequency Communication Technologies, 2023 This paper presents a beam scanning electronically reconfigurable reflectarray configuration for Ku-band applications using a single varactor diode. A 15×15 center-fed reconfigurable reflectarray antenna is designed consisting of 225 octagonal shaped ...
Vidhyashree Suresh +2 more
doaj +1 more source
Advanced Functional Materials, Volume 36, Issue 75, 17 September 2026.A CMOS‐compatible, all‐dielectric Silicon‐on‐Glass reflective metasurface enables low–loss terahertz wavefront control for future 6G wireless communication. Mie‐resonant silicon pillars provide full phase coverage near 500 GHz, achieving experimentally validated single‐, dual‐, and five‐beam steering with sub‐1.5° angular error and less than 3 dB ...
Rithwik Premanand +6 more
wiley +1 more source
Reflectarray Membrane Study for Deployable SAR Antenna [PDF]
, 2009 In this paper a reflectarray design for a membrane spaceborne antenna to be used in a typical SAR mission is presented. An L-Band reflectarray, with a dimension of 10 by 6 meters on Kapton foil substrate, has been designed.
Di Maria, Alberto +3 more
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Advanced Materials Technologies, Volume 11, Issue 18, 18 September 2026.Direct nanoscratching with a 500 nm diamond lapping film creates groove‐guided liquid‐crystal alignment interfaces on PCB‐compatible Cu‐patterned RF substrates within minutes, eliminating polymer coating and high‐temperature baking. The coating‐free process enables optical/molecular alignment validation and voltage‐programmable 28 GHz reflection‐phase ...
Junseok Ma +5 more
wiley +1 more source
Nanophotonics, Volume 15, Issue 15, 13 August 2026.Conceptual illustration of the retro‐reflective and transmissive metasurface (RRTM). The blue radar establishes communication with the UAV via the transmissive mode, whereas the purple surveillance radar acquires the status of friendly units through the retro‐reflective mode and the two modes operate simultaneously within the same decoupled aperture ...
Shulei Zhang +8 more
wiley +1 more source
Cellular Reflectarray Antenna [PDF]
, 2010 The cellular reflectarray antenna is intended to replace conventional parabolic reflectors that must be physically aligned with a particular satellite in geostationary orbit.
Romanofsky, Robert R.
core
Multi-Beam Radiation Intensity Control of a Reflectarray Antenna Using Unit Cell Arrangement [PDF]
Journal of Electromagnetic Engineering and ScienceIn this paper, multi-beam radiation intensity control of a reflectarray antenna by means of unit cell arrangement is proposed and investigated. A metasurface is designed to achieve reflection in a specific direction, and a circular ring structure with a ...
Jae-Gon Lee
doaj +1 more source
A Single-Layer 10-30GHz Reflectarray Antenna for the Internet of Vehicles [PDF]
, 2022 A novel ultra-wideband (UWB) reflectarray antenna for the Internet of Vehicles (IoV) is introduced in this paper. By simply connecting the neighboring reflectarray elements, the proposed reflectarray antenna achieves a remarkable radiation pattern ...
Mao, Chunxu +7 more
core +1 more source