Results 41 to 50 of about 4,264 (215)
IEEE Access, 2018 A dual-layer active reflectarray configuration is proposed for broad-band beam-steering and/or frequency-tunable applications. A unit cell composed by two stacked fixed-size rectangular patches, properly loaded with a single varactor diode, is designed ...
Sandra Costanzo +3 more
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New Journal of Physics, 2022 In this paper, a three-dimensional accurate modeling of nematic liquid crystal (LC) has been presented for the analysis of reconfigurable reflectarray cells based on LC.
Jin-Ling Geng, Lizhong Song
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Advanced Optical Materials, Volume 14, Issue 40, 27 October 2026.A theory‐guided magnetoelectric metasurface design breaks the conventional optical transparency and electromagnetic performance trade‐offs. By preserving the electric and magnetic current paths required for efficient reflection through fine‐metal‐line structure, the developed transparent reflective metasurface achieves high optical transparency without
Mina Feizi +5 more
wiley +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
IEEE Open Journal of Antennas and PropagationThis work proposes a phase-only synthesis technique for shaping the beam of a circularly polarized dual-reflector antenna with a subreflector consisting of a reflectarray and a main parabolic reflector.
Marzieh Mehri Dehnavi +1 more
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Bandwidth Behavior of Closely Spaced Aperture-Coupled Reflectarrays
International Journal of Antennas and Propagation, 2012 The bandwidth features of reflectarray antennas are analyzed by examining in detail the phase errors due to the compensation mechanism for spatial phase delays.
F. Venneri, S. Costanzo, G. Di Massa
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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
Wideband Reflectarray Using Compact Coupled Element and Rectifying Antenna Combined with Reflectarray [PDF]
, 2011 The reflectarray has been considered as a suitable candidate to replace the conventional parabolic reflectors because of its high-gain, low profile, and beam reconfiguration capability.
Oh, Seong Won
core
Integrated MEMS reflectarray elements
, 2006 Reflectarrays have attracted substantial interest in recent years as low-profile replacements for reflector antennas, particularly in space applications.
M. Okoniewski, Sean V. Hum, G. Mcfeetors
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Известия высших учебных заведений России: Радиоэлектроника, 2022 Introduction. Duplex satellite communication is commonly arranged using two spaced frequency bands, with one band receiving and the other band transmitting signals to a satellite.
S. V. Polenga +9 more
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