Results 71 to 80 of about 140,738 (213)

Anisotropic Metallic Grating With an Inhomogeneous Superstrate as a Broadband Reflective Polarization Converter: Design and Fabrication

IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.
An efficient and broad‐band reflective microstrip polariser converter is proposed that converts linear polarization plane waves to circular polarization ones. It is experimentally shown that the designed device converts the LP plane‐waves to a CP one within 7.2∼12.6 GHz with 3‐dB AR bandwidth = 54.5%.
Mahdieh Bozorgi, Mahmood Rafaei‐Booket
wiley   +1 more source

Design of a Broadband Reconfigurable Transmitarray and Evaluation of Its Radiation and Scattering Characteristics Using an EM‐Acquired CRCS‐Based Link Gain Model

IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.
This paper presents a broadband 1‐bit reconfigurable transmitarray operating at 11.7 GHz, using interdigital structures to achieve a 23.1% 3‐dB transmission‐loss bandwidth without requiring an air gap. An EM‐acquired CRCS‐based link gain model is developed to evaluate the radiation gain, scattering characteristics and gain‐frequency response of the RTA.
Ting‐Hao Shih, Shih‐Cheng Lin, Dai‐Ting Tsai   +2 more
wiley   +1 more source

An Artificial Magnetic Conductor‐Backed Logarithmic Spiral Antenna for CubeSat Relay Downlink Networks

IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.
This work presents a compact AMC‐backed logarithmic spiral antenna for CubeSat relay downlink communications, achieving wide impedance bandwidth from 5.1 to 16 GHz and stable circular polarization with a 48.64% axial‐ratio bandwidth. The integration of an artificial magnetic conductor enhances radiation efficiency and enables a measured peak gain of 9 ...
Talha Shahid Alvi, Faizan Ramzan, Muhammad Ali, Muhammad Ahsan Rafiq, Affan Inam, Muhammad Qasim Mehmood, Shahid Mumtaz, Muhammad Zubair   +7 more
wiley   +1 more source

Reconfigurable Optically Transparent Antenna Using Drop‐on‐Demand Printed Nematic Liquid Crystals

Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
This paper reports on the design, fabrication methodology, and measurement of a microstrip patch antenna that is optically transparent and exhibits a reconfigurable frequency response using a nematic liquid crystal (LC) for 6G‐Internet‐of‐Things applications.
Bradley C. Mee, Waqas Kamal, Junseok Ma, Steve J. Elston, Alfonso A. Castrejón-Pita, Will Whittow, Stephen M. Morris, Justin P. Coon, Mohammad Rezwan Habib   +8 more
wiley   +1 more source

Multi-Beam Radiation Intensity Control of a Reflectarray Antenna Using Unit Cell Arrangement [PDF]

Journal of Electromagnetic Engineering and Science
In 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

Do We Really Need Frequency‐Selective Surface and Metasurface Reflectors for Antenna Gain Enhancement, or Are Metallic Reflectors Enough?

International Journal of Antennas and Propagation, Volume 2026, Issue 1, 2026.
Enhancing antenna gain remains a key requirement in modern wireless systems, particularly with the rapid evolution of 5G, emerging 6G networks, satellite links, and high‐resolution radar. Recent research trends increasingly rely on frequency‐selective surfaces (FSSs) and metasurface‐based reflectors, which offer precise electromagnetic wave control ...
A. J. A. Al-Gburi, Mohammad Rezwan Habib
wiley   +1 more source

Reflectarray antennas: theory, designs, and applications

, 2018
This book provides engineers with a comprehensive review of the state-of-the-art in reflectarray antenna research and development. The authors describe, in detail, design procedures for a wide range of applications, including broadband, multi-band, multi-
Yang, Fan, Elsherbeni, Atef Z, Nayeri, Payam   +2 more
core  

Terahertz reflectarray antennas: An overview of the state-of-the-art technology

, 2014
A reflectarray antenna combines the advantages of reflectors and phased-arrays. Due to its low profile, low loss, and versatile radiation properties, it has emerged as a new generation of high-gain antennas.
Xu, Shenheng, PIRINOLI, Paola, Shenheng Xu, Paola Pirinoli, Yang, Fan, Ruyuan Deng, Deng, Ruyuan, Fan Yang   +7 more
core   +1 more source

Reducing the Sidelobe Level of Reflectarray Antennas Using Phase Perturbation Method

Iranian Journal of Electrical and Electronic Engineering, 2020
Phase Perturbation Method (PPM) is introduced as a new phase-only synthesis method to design reflectarray antennas so as their sidelobe level is reduced.
M. Khalaj-Amirhosseini, M. Nadi-Abiz
doaj  

The contribution of Julien Perruisseau-Carrier to reconfigurable reflectarray antennas [PDF]

, 2015
An invited talk on the Contribution of Julien Perruisseau-Carrier to Reconfigurable Reflectarray ...
Rodríguez Boix, Rafael, Encinar Garcinuño, José Antonio, Florencio Díaz, Rafael   +2 more
core