Results 51 to 60 of about 911 (207)

Design of transmitarray compact antenna test range at millimetre wave band

IET Microwaves, Antennas & Propagation, 2022
In this paper, a novel compact antenna test range based on transmitarray (TA), transmitarray compact antenna test range (TACATR), is proposed. A non‐negligible parameter, central cell reference phase (CRP), is defined to harmonize the disturbance field ...
Yongheng Zhao, Peng Huo, Jianhua Wu, Zhiping Li   +3 more
doaj   +1 more source

Cloaking and Antennas: From Theoretical Paradigms to Next‐Generation Intelligent Systems

Advanced Optical Materials, Volume 13, Issue 33, November 25, 2025.
The inception of electromagnetic cloaking sparked an immediate question: Can antennas be made invisible? Two decades later, this review charts the intertwined progress of major cloaking strategies (from transformation optics to scattering cancellation), metasurface technology, and their application to antennas, revealing how AI‐enabled devices are ...
Helen Guo, Xun Li
wiley   +1 more source

A Near‐Zero Index Metamaterial Lens for Reduced Complexity and High‐Performance Active Electronically Scanned Arrays

Advanced Electronic Materials, Volume 11, Issue 3, March 2025.
Subarray technology enables high‐performance limited field of view (LFOV) phased arrays, but these are necessarily complex with numerous phase shifters and other electronic components. A metalens is now introduced, which achieves excellent LFOV performance without the complexity of traditional designs.
J. Daniel Binion, Colin A. Mussman, Erik Lier, Thomas H. Hand, Douglas H. Werner   +4 more
wiley   +1 more source

A C-band Transmitarray for Spatial Multiplexing and Diversity Applications

, 2021
A C-band prototype of 1-bit dual-polarized tiled transmitarray architecture are discussed, whereby the required phase distribution across the array aperture is built from separate unit cells fabricated individually and assembled in the required pattern ...
P. Turalchuk, Munina, I., Kirillov, V., A. Verevkin, V. Kirillov, I. Munina, Verevkin, A., D. Zelenchuk, Turalchuk, P., Zelenchuk, D.; id_orcid   +9 more
core   +1 more source

Single‐Layer Reflectarray Providing Broadband Linear‐to‐Circular Polarization Conversion

Microwave and Optical Technology Letters, Volume 67, Issue 2, February 2025.
ABSTRACT This paper introduces a single‐layer reflectarray (RA) design capable of converting incoming linearly polarized waves into outgoing circularly polarized ones while focusing the beam. The design employs nonresonant unit cells, extending the classical concept of meander‐line polarizers.
Samara Gharbieh, Renaud Loison, Akil Jrad, Ali Harmouch, María García‐Vigueras   +4 more
wiley   +1 more source

Enhancing 2-D Beam Scanning Capability through Extended Transmission Paths in a Liquid Crystal-Based Transmitarray Antenna for mmWave Communications [PDF]

Journal of Electromagnetic Engineering and Science
This paper introduces a novel method for implementing a liquid crystal-based transmitarray (LCTA) antenna with two-dimensional (2D) beam scanning capability for the first time.
Seungwoo Bang, Hogyeom Kim, Jungsuek Oh
doaj   +1 more source

An Extremely Low‐Profile Electronically Reconfigurable 1‐D X‐Band Leaky‐Wave Antenna

IET Microwaves, Antennas &Propagation, Volume 19, Issue 1, January/December 2025.
A 1‐bit electronically tunable 1‐D leaky‐wave antenna is proposed in this work. The theoretical basis of the proposed structure is first evaluated using the array factor and the concept is experimentally confirmed using a 21‐element prototype. ABSTRACT In this work, a simple analytical model based on the array factor to effect 1‐bit electronic ...
Kevin Kipruto Mutai, Xianbo Cao, Qiang Chen   +2 more
wiley   +1 more source

Conformal Transmitarray and Its Beam Scanning [PDF]

, 2019
© 2019 Antenna Branch of Chinese Institute of Electronics. A mechanically beam-scanning conformal transmitarray is developed in this paper. Firstly, a transmitarray element with three layers of identical square ring slots is proposed and its performance ...
Guo, YJ, Qin, PY, Song, LZ
core  

A Double-Layer Highly Efficient and Wideband Transmitarray Antenna

IEEE Access, 2019
A double-layer highly efficient and wideband transmitarray antenna is presented. The transmitarray element is composed of four metal vias and two crosspatches with two stubs. The metal vias penetrate the entire substrate and arrange symmetrically.
Xiang-Jie Yi, Tao Su, Bian Wu, Jian-Zhong Chen, Lin Yang, Xi Li   +5 more
doaj   +1 more source

Two-Dimensional Switchable Beam Transmitarray Antenna for mm-Wave Base Stations and Vehicular Networks

IEEE Access, 2023
This article presents the design of a low-profile, two-dimensional and beam-switching transmitarray antenna for millimetre-wave (26.3-29.3 GHz) applications.
Javid Ahmad Ganie, Kushmanda Saurav
doaj   +1 more source