Results 21 to 30 of about 1,413,233 (284)
Efficient design of multiple-fed leaky wave/Fabry-Perot antennas [PDF]
, 2016 A simple transmission line approach for the rapid analysis of multiple fed Leaky Wave antennas based on Fabry-Perot cavities is presented. The method is based on the superposition of the travelling leaky waves excited by each of the applied source.
MONORCHIO, AGOSTINO +7 more
core +1 more source
Optimum Gain Conditions for 1-D Unidirectional Leaky-Wave Antennas
, 2021 The optimization of the radiating performance for finite-length 1-D unidirectional leaky-wave antennas (LWAs) is first treated in the general case, i.e., assuming that the phase and attenuation constants can be varied freely.
Walter Fuscaldo +5 more
core +1 more source
Optimized Leaky-Wave Antenna for Hyperthermia in Biological Tissue Theoretical Model
Sensors, 2023 In this paper, we exploit the enhanced penetration reachable through inhomogeneous waves to induce hyperthermia in biological tissues. We will present a leaky-wave antenna inspired by the Menzel antenna which has been shortened through opportune design ...
Alessandro Calcaterra +4 more
doaj +1 more source
Improving directional radiation quality based on a gradient amplitude acoustic leaky wave antenna
New Journal of Physics, 2019 In this work, we show how to modify radiation amplitude with a leaky wave antenna to improve the quality of sound radiation. The designed gradient amplitude leaky wave antenna consists of a straight pipe with periodically loaded membranes, open channels ...
Jun Lan +4 more
doaj +1 more source
IET Microwaves, Antennas & Propagation, 2022 In this work, a wide‐angle forward to backward scanning wideband leaky‐wave antenna (LWA) based on the microstrip spoof surface plasmon polaritons (SSPPs) transmission line (TL) is proposed.
Somia Sharma +3 more
doaj +1 more source
Topological One-Way Edge States in an Air-Hole Honeycomb Gyromagnetic Photonic Crystal
Frontiers in Physics, 2022 Topological one-way edge states have attracted increasing attention because of their intriguing fundamental physics and potential applications, particularly in the realm of photonics. In this paper, we present a theoretical and numerical demonstration of
Chaoqun Peng +4 more
doaj +1 more source
Analysis and design of periodic leaky-wave antennas for the millimeter waveband in hybrid waveguide-planar technology [PDF]
, 2005 This work presents a full-wave integral equation approach specifically conceived for the analysis and design of laterally-shielded rectangular dielectric waveguides, periodically loaded with planar perturbations of rectangular shape.
Melcón Álvarez, Alejandro +2 more
core +1 more source
Technologies for Near-Field Focused Microwave Antennas
International Journal of Antennas and Propagation, 2017 This paper provides a review spanning different technologies used to implement near-field focused antennas at the microwave frequency band up to a few tens of GHz: arrays of microstrip patches and printed dipoles, arrays of dielectric resonator antennas,
Paolo Nepa +3 more
doaj +1 more source
IEEE Access, 2018 Modern terahertz (THz) receiver used for radio astronomy is aimed at developing high integrated system. However, various THz integrated devices, such as quantum cascade lasers and chip antennas, exist weaknesses of poor radiation quality and beam ...
Jiang-Qiao Ding +3 more
doaj +1 more source
Applications of AMC-based impedance surfaces
EPJ Applied Metamaterials, 2018 The recent and major enhancements of artificial magnetic conductor (AMC) and their applications namely RCS reduction, low-profile antennas and holographic leaky wave antennas are reviewed.
Balanis Constantine A. +4 more
doaj +1 more source