Results 71 to 80 of about 5,669 (203)
Fully Controllable Beam‐Steering 1‐THz Transmitarray Using Graphene–Metal Hybrid Metasurface
IET Microwaves, Antennas &Propagation, Volume 19, Issue 1, January/December 2025.The switchable hybrid graphene–metal transmiting metasurface. The transmitarray composed of the proposed metasurface, for beam steering, controlable by a microprocessing unit. ABSTRACT In this paper, a 1‐THz graphene–metal‐hybrid transmissive metasurface is proposed, which consists of six layers.
P. Hosseini, H. Oraizi
wiley +1 more source
Keberkesanan program industrial skills enhancement programme (INSEP) dalam membantu peningkatan kemahiran kebolehpekerjaan peserta program di pusat pembangunan kemahiran negeri [PDF]
, 2006 Pengangguran di kalangan siswazah merupakan satu masalah global dan ia menjadi satu isu yang hangat diperdebatkan di Malaysia baru-baru ini. Salah satu langkah untuk mengatasi masalah ini ialah dengan melaksanakan program Industrial (INSEP) di Malaysia ...
Hai Kelian, Virakwan
core
All-dielectric reciprocal bianisotropic nanoparticles
, 2015 The study of high-index dielectric nanoparticles currently attracts a lot of attention. They do not suffer from absorption but promise to provide control on the properties of light comparable to plasmonic nanoparticles.
Alaee, Rasoul +5 more
core +1 more source
Wide‐Angle Scanning Array With Sidelobe Reduction Using Single Substrate Layer
IET Microwaves, Antennas &Propagation, Volume 19, Issue 1, January/December 2025.Without the need for amplitude weighting, the proposed array can achieve beam scanning from −70° to 70° with a gain fluctuation of less than 0.8 dB while maintaining sidelobe levels below −11 dB. The proposed array has the advantages of simple structure, wide beam coverage, low gain fluctuation, and low sidelobe level.
Shang‐Yang Li +5 more
wiley +1 more source
Development of a Pin Diode-Based Beam-Switching Single-Layer Reflectarray Antenna
International Journal of Antennas and Propagation, 2020 This paper presents a practical demonstration for the design and development of a switchable planar reflectarray using PIN diodes in the X-band frequency range.
Muhammad Inam Abbasi +2 more
doaj +1 more source
81-Element single-layer reflectarray with double-ring phasing elements for wideband applications [PDF]
, 2010 A microstrip reflectarray antenna utilizes a planar array of printed patch elements and a conventional prime or offset feed to form an alternative to the parabolic reflector [1].
Bialkowski, M.E. +3 more
core +1 more source
IET Microwaves, Antennas &Propagation, Volume 19, Issue 1, January/December 2025.This work presents an adaptive reflectarray for the high‐intensity radiation fields (HIRF) prevention in X‐band, thereby reducing the risk of interference or damage to front‐ends, receiving links, and other electronic components. ABSTRACT This paper presents an energy selective reflectarray antenna with field‐induced gain to prevent the high‐intensity ...
Jihong Zhang +5 more
wiley +1 more source
Broadband Single-layer E-Patch Reflectarray [PDF]
Radioengineering, 2017 E-shaped patch resonator is proposed for designing a novel broadband linearly polarized reflectarray for the first time. The element is made up of a shorted E-shaped patch with a polystyrene foam placed beneath it, and no dielectric substrate is needed ...
S. R. Lee, E. H. Lim, F. L. Lo
doaj
Design and Characterisation of All‐Dielectric Metasurface Reflector for mmWave Antennas
IET Microwaves, Antennas &Propagation, Volume 19, Issue 1, January/December 2025.This study presents an all‐dielectric artificial magnetic conductor (AMC) operating at 77 GHz with zero‐phase reflection, featuring a −1‐dB reflection bandwidth of 3.6 and 8.2 GHz for ± 45° and ± 90° reflection phases, respectively. Simulation and measurement results validate the design's performance while highlighting discrepancies attributed to ...
Muhammad Uzair +3 more
wiley +1 more source
A Wideband Multibeam Transmitarray Antenna Based on 3‐D FSS
IET Microwaves, Antennas &Propagation, Volume 19, Issue 1, January/December 2025.This paper presents a novel method for designing a wideband dual‐polarised multibeam transmitarray antenna. Through numerical calculations, simulations and measurements, the TA demonstrates outstanding multibeam radiation characteristics. ABSTRACT This paper presents a novel method for designing a wideband dual‐polarised multibeam transmitarray antenna.
Longfei Wang +4 more
wiley +1 more source