Angular independent frequency selective surfaces for interference control in indoor wireless environments [PDF]
, 2012 A study of electromagnetic wave propagation in buildings using a finite-difference time-domain algorithm has demonstrated that waves are incident on walls over a wide range of angles. If wall mounted frequency selective shielding is desired, it is argued
Williamson, A.G. +19 more
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A polarization‐insensitive time‐modulated frequency‐selective surface for broad frequency range
IET Microwaves, Antennas & Propagation, 2022 Usually, Radar signature of an object is reduced using microwave absorber surface. Recently, another approach based on time‐modulated frequency‐selective surfaces has been developed to deceive Radar detection by selectively generating harmonics/sidebands.
Mondeep Saikia +2 more
doaj +1 more source
Experimental Phase Plate Employing a Phase Modulated Active Frequency Selective Surface [PDF]
, 2010 A novel method employing a phase modulated frequency selective surface (FSS) to improve the wireless communications coverage of enclosed spaces in the built environment through the filling of black spots is described.
Parker, Edward A. +5 more
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Convoluted double square: single layer FSS with close band spacings [PDF]
, 2000 A novel element provides reflection band ratios as low as 1.1. It is derived from the double square but is less demanding on printing definition. Together, the two elements offer increased flexibility in Frequency selective surface design for close band ...
Parker, Edward A. +2 more
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A High-Selective Frequency Selective Surface With Hybrid Unit Cells
IEEE Access, 2018 In this paper, a novel frequency selective surface (FSS) is proposed. It has two metal layers and the configurations of the unit cells of these two layers are different, so-called hybrid unit cells. The designed FSS has three transmission zeros and steep
Yuhong Ma +4 more
doaj +1 more source
Frequency Selective Surface-Based Switched-Beamforming Antenna
IEEE Access, 2018 A novel switched-beamforming antenna designed using active frequency selective surfaces (AFSS) is presented. The antenna consists of two parts: a source with an omnidirectional radiation pattern and a novel active triangular frequency selective surface ...
Ghada Hussain Elzwawi +3 more
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Self-pulsing dynamics in a cavity soliton laser [PDF]
, 2010 The dynamics of a broad-area vertical-cavity surface-emitting laser (VCSEL) with frequency-selective feedback supporting bistable spatial solitons is analyzed experimentally and theoretically. The transient dynamics of a switch-on of a soliton induced by
Oppo, G. -L. +9 more
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3D Absorptive Frequency-Selective Reflection and Transmission Structures With Dual Absorption Bands
IEEE Access, 2018 This paper presents a 3D absorptive frequency-selective reflection structure (AFSR) and absorptive frequency-selective transmission structure (AFST) with one reflection/transmission band and two absorption bands.
Yufeng Yu +6 more
doaj +1 more source
Novel 4‐bit second‐order multifunction frequency selective surface
IET Microwaves, Antennas & Propagation, 2021 An innovative four‐bit second order multifunction active frequency selective structure controlled via four PIN diodes with nine different combinations is introduced . The proposed design is equipped with electromagnetic switching, frequency switching and
Gulab Shah +3 more
doaj +1 more source
Dual-Band Tunable Screen using Complementary Split Ring Resonators [PDF]
, 2010 Active frequency selective surfaces (FSS) based on slot-form split ring resonators are described. Switching and tuning have been achieved using two different biasing circuit configurations.
Parker, Edward A. +5 more
core +1 more source