Journal ArticleDOI
All-Dielectric Frequency Selective Surface for High Power Microwaves
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In this article, an all-dielectric frequency selective surface was developed for high power microwaves in a compact form factor while still producing a strong frequency response, based on guided mode resonance (GMR).Abstract:
In this work, an all-dielectric frequency selective surface was developed for high power microwaves. By avoiding the use of metals, arcing at field concentration points and heating in the conductors was avoided. To do this in a compact form factor while still producing a strong frequency response, we based our design on guided-mode resonance (GMR). To make this approach viable for radio and microwave frequencies, we overcame three major challenges. First, conventional GMR devices have less than 1% fractional bandwidth and we extended this to 16%. Second, conventional GMR devices have a field-of-view less than 1
°
and we extended this to over 40
°
. Third, conventional GMR devices must be composed of hundreds of periods to operate, but our device operated very well with only eight. In this paper, we present our design and experimental results at 1.7 GW/m
2
.read more
Citations
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Journal ArticleDOI
Progress in frequency selective surface-based smart electromagnetic structures: A critical review
Ravi Panwar,Jung-Ryul Lee +1 more
TL;DR: In this article, a review of recent developments in the field of frequency selective surface (FSS)-based advanced electromagnetic (EM) structures is presented, which is a type of filter consisting of an array of periodic metallic patches or apertures on a dielectric substrate.
Journal ArticleDOI
3-D Printed All-Dielectric Frequency Selective Surface With Large Bandwidth and Field of View
TL;DR: In this article, an all-dielectric frequency selective surface (ADFSS) was developed using genetic algorithms and fast Fourier transforms (FFTs) to generate random geometries.
Journal ArticleDOI
Guided-mode resonant narrowband terahertz filtering by periodic metallic stripe and patch arrays on cyclo-olefin substrates
TL;DR: This class of narrowband transmissive filters based on the excitation of guided-mode resonances in thin films of the low-loss cyclo-olefin polymer Zeonor provides a cost-effective solution for broadband source or channel filtering in view of emerging terahertz wireless communication systems.
Journal ArticleDOI
All-dielectric metamaterial frequency selective surfaces based on high-permittivity ceramic resonators
TL;DR: In this paper, the authors proposed the design of all-dielectric metamaterial frequency selective surface (FSS) using high-permittivity ceramics, which is composed of 2D arrays of rectangular ceramic resonators.
Journal ArticleDOI
Surface Impedance Modeling of All-Dielectric Metasurfaces
TL;DR: In this article, a simple and reliable analytical model that allows describing the electromagnetic response of all-dielectric metasurfaces consisting of a single-layer array of high-permittivity spherical particles was developed.
References
More filters
Book
Frequency Selective Surfaces: Theory and Design
TL;DR: In this article, the authors present a comparison of band-pass and Dichroic filter designs for one and two-dimensional periodic structures, and present an overview of the current state-of-the-art.
Journal ArticleDOI
Formulation for stable and efficient implementation of the rigorous coupled-wave analysis of binary gratings
TL;DR: In this paper, the authors presented a stable and efficient numerical implementation of the analysis technique for one-dimensional binary gratings for both TE and TM polarization and for the general case of conical diffraction.
Journal ArticleDOI
Particle swarm optimization in electromagnetics
TL;DR: A study of boundary conditions is presented indicating the invisible wall technique outperforms absorbing and reflecting wall techniques and is integrated into a representative example of optimization of a profiled corrugated horn antenna.
Journal ArticleDOI
Particle swarm optimization versus genetic algorithms for phased array synthesis
D.W. Boeringer,Douglas H. Werner +1 more
TL;DR: The particle swarm optimizer shares the ability of the genetic algorithm to handle arbitrary nonlinear cost functions, but with a much simpler implementation it clearly demonstrates good possibilities for widespread use in electromagnetic optimization.
Journal ArticleDOI
Guided-mode resonances in planar dielectric-layer diffraction gratings
TL;DR: In this paper, the authors studied the guided-mode resonance behavior of the evanescent and propagating fields associated with an unslanted, planar diffraction grating by means of the rigorous coupledwave theory.