Results 101 to 110 of about 1,257 (220)

Contributions on Transmitarrays for Far-Field Applications [PDF]

open access: yes
XI Encuentro Ibérico de Electromagnetismo Computacional-IIEC, 8-11 de noviembre de 2016, Asturias (España)Different contributions made to the development of Transmitarrays (TA) for Far-Filed applications are presented in this contribution.
Costa, Jorge   +5 more
core  

ELECTRONICAL LY RECONFIGURABLE FS S - INSPIRED TRANSMITARRAY FOR TWO DIMENS IONAL BEAMSTEERING FOR 5G ANDRADAR APPL ICATIONS AT 2 8 GHZ [PDF]

open access: yes, 2019
In this dissertation, the author’s work on a 28 GHz transmitarray capable of antenna beamsteering for various wireless applications, is presented. Such device allows for the adjustment of the radiation pattern of an antenna by changing its main lobe ...
Vala, Mário António Patrício Carreira
core  

Wideband and High-Efficiency Circularly Polarized Unit-Cell for X and Ka-Band Transmitarrays

open access: yesIEEE Open Journal of Antennas and Propagation
This paper presents a novel approach for linear to circular polarization (LP-CP) conversion in transmitarray antennas. The proposed conversion mechanism differs significantly from previous published realizations.
Alessandro de Oliveira Cabral Junior   +2 more
doaj   +1 more source

Efficient Methods to Enhance the Bandwidths of Transmitarray Antennas [PDF]

open access: yes
This paper introduces two efficient methods to enhance the bandwidths of transmitarray antennas. For the transmitarray antenna based on resonant unit cells, two unit cells based on polarization-rotation structures are proposed to offer a 2-bit ...
Cai, Yang, Mei, Peng, Zhang, Shuai
core   +2 more sources

Design of Dual-Polarized All-Dielectric Transmitarray Antenna for Ka-Band Applications

open access: yesApplied Sciences
This paper proposes two all-dielectric transmitarrays operating at Ka-band (26.5–40 GHz), achieving dual-polarization and beam-scanning functionalities. The dual-polarized design employs a cross-shaped dielectric post transmission unit, where the lengths
Baixin Liu   +4 more
doaj   +1 more source

A LOW-PROFILE CYLINDRICAL CONFORMAL TRANSMITARRAY ANTENNA [PDF]

open access: yesProgress In Electromagnetics Research Letters, 2022
Ben Fu   +4 more
openaire   +1 more source

Optimal design of transmitarray antennas via low-cost surrogate modelling. [PDF]

open access: yesSci Rep, 2023
Belen MA   +4 more
europepmc   +1 more source

A Low-Profile, Broadband Dual-Circularly-Polarized Bidirectional Folded Transmitarray [PDF]

open access: yes
In this letter, a low-profile, broadband, and bidirec-tional folded transmitarray (Bi-FTA) is proposed. It consists of a left-hand and a right-hand circularly polarized (CP) sources and two multifunctional metasurfaces (MFMs).
Bo, Xin-Zhi   +5 more
core   +1 more source

Radar For Vital Sign Monitoring [PDF]

open access: yes
Radarbaserede systemer til overvågning af vitale tegn bliver i stigende grad anerkendt som lovende værktøjer til ikke-invasive sundhedsdiagnoser.
Asyari, Rifa Atul Izza
core   +1 more source

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