Results 11 to 20 of about 3,272 (195)

Fully Controllable Beam‐Steering 1‐THz Transmitarray Using Graphene–Metal Hybrid Metasurface

open access: yesIET Microwaves, Antennas & Propagation
In this paper, a 1‐THz graphene–metal‐hybrid transmissive metasurface is proposed, which consists of six layers. By applying a dc biasing voltage, over a 360°‐phase variation of the transmitted wave is obtained. Also a transmitarray for steering a pencil‐
P. Hosseini, H. Oraizi
doaj   +2 more sources

Design and implementation of a novel wideband dual‐polarised transmitarray antenna based on tightly coupled cross dipole cells

open access: yesIET Microwaves, Antennas & Propagation
A novel broadband dual‐polarised transmitarray antenna (TA) utilising tightly coupled cross dipole cells is proposed in this work. The transmitarray cell using the tightly coupling wideband principle comprises two radiation patches designed as two ...
Yong Heng Zhao   +3 more
doaj   +2 more sources

3D-Printed Reflect-Transmit-Array Antenna With Modified Transmitarray Mode for RCS Reduction

open access: yesIEEE Access
In this paper, a 3D-printed dual-band reflect-transmit-array (RTA) antenna has been presented, which operates as a reflectarray (RA) in the 28 GHz band and as a transmitarray (TA) in the 41.5 GHz band along with modified TA mode operation for radar cross-
Vimal Kumar   +4 more
doaj   +2 more sources

Design and Implementation of an X-Band 1-Bit Reconfigurable Transmitarray System with a Space-Time Coding Scheme [PDF]

open access: yesJournal of Electromagnetic Engineering and Science
This paper proposes a 1-bit reconfigurable transmitarray system operating in the X-band that is capable of implementing a space-time coding scheme. The proposed transmitarray consists of a 10×10 array of unit cells, each exhibiting high transmission ...
Sung-Geon Kim   +7 more
doaj   +2 more sources

A reconfigurable transmitarray unit cell employing liquid metal

open access: yesIET Microwaves, Antennas & Propagation
In this paper, a reconfigurable transmitarray unit cell using liquid metal is presented. It consists of three conducting layers where the geometries of the resonators, on the different layers, differ and consist of an arrow shape together with rotated ...
Zhishu Qu   +5 more
doaj   +2 more sources

Wideband Low-Profile Ku-Band Transmitarray Antenna

open access: yesIEEE Access, 2021
A wideband, low profile transmitarray antenna (TA) operating in Ku-band (12GHz-18GHz) is proposed. The transmitarray antenna is composed of aperiodic transmitarray units arranged periodically.
Mei-Yu Li, Yong-Ling Ban, Fu-Qiang Yan
doaj   +1 more source

Combined Single-Layer K-Band Transmitarray and Beamforming S-Band Antenna Array for Satcom

open access: yesIEEE Open Journal of Antennas and Propagation, 2022
In this paper, a dual-band antenna at 4.5 GHz and 25 GHz is presented. The antenna is a low-frequency phased patch antenna array combined with a high-frequency transmitarray with a fixed beam.
Daniel Edelgaard Serup   +2 more
doaj   +1 more source

One‐dimensional high‐gain beam‐scanning transmitarray fed by phased array with continuous electronic scan and low scan loss

open access: yesIET Microwaves, Antennas & Propagation, 2022
In this study, the design of a one‐dimensional high‐gain beam‐scanning transmitarray fed by a phased array with continuous electronic scan and low scan loss is displayed and demonstrated.
Liting Zhu   +3 more
doaj   +1 more source

A High Efficiency Transmitarray Using Two-Layer Elements Etched on Compound Substrate

open access: yesIEEE Access, 2022
In this paper, a novel double-layer transmitarray antenna operating in X-band with high efficiency is presented. Different from the traditional transmitarray element design, the proposed transmitarray element uses a compound substrate which is composed ...
Chao Tian   +4 more
doaj   +1 more source

60-GHz Double-Layer Transmitarray Antenna Using Complementary Structure

open access: yesFrontiers in Physics, 2022
—A novel double-layer transmitarray element is presented at 60 GHz with linearly- and circularly-polarized characteristics. A planar frequency-selective structure using the complementary design is adopted to augment the element performance for millimeter-
Wenxing An   +4 more
doaj   +1 more source

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