Results 181 to 190 of about 9,058 (257)
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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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Mechanically Reconfigurable Folded Reflectarray Antenna for Variable Near-Field Focusing
IEEE Transactions on Antennas and Propagation, 2023A novel variable-focus near-field-focused (NFF) antenna implemented by mechanically reconfigurable folded reflectarray is proposed in this communication.
Xiangming Wu +5 more
semanticscholar +1 more source
IEEE Journal of Solid-State Circuits
The high-angular-resolution imaging capability of future automotive and security sensing systems is in favor of compact, fully integrated, and reconfigurable antenna arrays.
Xibi Chen +5 more
semanticscholar +1 more source
The high-angular-resolution imaging capability of future automotive and security sensing systems is in favor of compact, fully integrated, and reconfigurable antenna arrays.
Xibi Chen +5 more
semanticscholar +1 more source
A Metal-Only Folded Reflectarray Antenna
IEEE Antennas and Wireless Propagation Letters, 2023This letter presents a metal-only folded reflectarray antenna, consisting of three components, namely a pyramidal feed horn, a lower reflectarray, and an upper polarizer, which are all made of metal.
Lu Guo, Yifeng Chen, Xiao-dong Chen
semanticscholar +1 more source
Printed millimeter-wave reflectarrays
Annales Des Télécommunications, 2001Des structures periodiques et quasi-periodiques, imprimees sur un substrat dielectrique peuvent etre employees pour commander les proprietes de reflexion et de transmission des ondes incidentes en fonction de la structure geometrique. Ceci peut etre realise pratiquement independamment pour les deux polarisations.
Dietmar Pilz, Wolfgang Menzel
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IEEE Transactions on Antennas and Propagation, 2022
We present a wideband reflectarray antenna with electronic beam-steering capability. The beam-steerable reflectarray uses an electronically reconfigurable polarization-rotating unit cell (PRUC) that acts as a wideband 1 bit phase shifter.
Hung Luyen +3 more
semanticscholar +1 more source
We present a wideband reflectarray antenna with electronic beam-steering capability. The beam-steerable reflectarray uses an electronically reconfigurable polarization-rotating unit cell (PRUC) that acts as a wideband 1 bit phase shifter.
Hung Luyen +3 more
semanticscholar +1 more source
A 2-Bit Programmable Reflectarray Antenna Based on a Polarization-Insensitive Metasurface
IEEE Transactions on Antennas and PropagationIn this article, a programmable reflectarray antenna (PRA) for 5G network in the S-band is proposed. The first 2-bit reconfigurable polarization-insensitive metasurface with two substrates, three metal layers, and only four p-i-n diodes in each unit cell
Ning Yang +6 more
semanticscholar +1 more source
Circularly Polarized One-Bit Reconfigurable ME-Dipole Reflectarray at X-Band
IEEE Antennas and Wireless Propagation Letters, 2022In this letter, a broadband and low loss circularly polarized (CP) electronically reconfigurable reflectarray antenna (RRA) that can operate over the X-band is reported.
Fan Wu +5 more
semanticscholar +1 more source
Patents on Reconfigurable Reflectarray Antennas
Recent Patents on Electrical Engineeringe, 2009Reflectarray antennas have attracted significant attention due to a number of attractive properties, such as low cost, and conformal deployment capability. In addition, the drive towards flexible radio transceivers, enabling beamforming and multi-beam operation has spurred significant interest towards the design of antenna elements and antenna arrays ...
Georgiadis, Apostolos +2 more
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IEEE Transactions on Antennas and Propagation
An extremely compact multibeam folded transmitarray antenna (FTA) with additional phase compensation in reflectarray is presented. The FTA is composed of a reflectarray and a transmitarray fed by 11 identical E-shaped patch antennas.
Qian Chen +6 more
semanticscholar +1 more source
An extremely compact multibeam folded transmitarray antenna (FTA) with additional phase compensation in reflectarray is presented. The FTA is composed of a reflectarray and a transmitarray fed by 11 identical E-shaped patch antennas.
Qian Chen +6 more
semanticscholar +1 more source