Results 31 to 40 of about 6,614,970 (338)
Switchable Frequency Selective Slot Arrays [PDF]
, 2011 A switchable frequency selective surface (FSS) made of square loop slots and PIN diodes connected to a novel separate biasing circuit is presented. The structure uses a very thin, flexible substrate sandwiched between two physically independent metallic ...
Parker, Edward A. +5 more
core +1 more source
Bandwidth in Cross Dipole Frequency Selective Surfaces
Revista Científica, 2018 This paper presents the implementation outcomes of the Equivalent Circuit Model (ECM) acting in conjunction with the Matrix Cascading Method (MCM) for bandwidth calculation in cross dipole Frequency Selective Surfaces (FSSs).
Mario Alberto Rodríguez-Barrera +1 more
doaj +1 more source
SWITCHABLE SPLIT-RING FREQUENCY SELECTIVE SURFACES [PDF]
Progress In Electromagnetics Research B, 2008 Tunable frequency selective surfaces (FSSs) based on split ring resonators (SRRs) are presented. Tuning performance is achieved by means of several on/off switches placed between the rings of each SRR element. The band-stop FSS response is dynamically tuned to different frequency bands at different switching states.
UÇAR, MUSTAFA HİKMET BİLGEHAN +2 more
openaire +3 more sources
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
Frequency Selective Surfaces with Nanoparticles Unit Cell
Micromachines, 2015 The frequency selective surface (FSS) is a periodic structure with filtering performance for optical and microwave signals. The general periodic arrays made with patterned metallic elements can act as an aperture or patch on a substrate.
Nga Hung Poon +5 more
doaj +1 more source
IEEE Access, 2020 Satellite communication systems require dual-band circularly polarized (CP) waves to integrate receiving and transmit antennas into one dual-band terminal. Polarization converters play an important role in such a scenario to convert the incoming linearly
Ayesha Kosar Fahad +6 more
doaj +1 more source
Proposed Technique of Analysis for Absorber/Transmitter Frequency Selective Surfaces
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2021 In this paper, we propose a simple technique to analyze absorber/transmitter frequency selective surfaces (FSS). The structure is formed by two FSS, one resistive and one conductive. Both FSS are printed on an FR4 dielectric substrate.
Eliel P. dos Santos +3 more
doaj +1 more source
Traditional Frequency Selective Surface versus Substrate Integrated Waveguide Frequency Selective Surface [PDF]
Universal Journal of Communications and Network, 2014 This paper is devoted to analysis design and fabrication of both traditional and substrate integrated waveguide (SIW) frequency selective surfaces (FSS) of square elements and square lattice. The transmission loss is studied for different angle of incidence; normal, thirty, forty five and sixty degrees.
I. El-Mongy, A. M. M. A. Allam
openaire +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
core +1 more source
Inductive Frequency Selective Surface: An Application for Dichroic Sub-Reflectors
IEEE Access, 2020 An Inductive Frequency Selective Surface (IFSS) self-standing dichroic sub-reflector is presented, which allows the transmission of two frequency bands and reflection of a third band. The operating frequency of the sub-reflector is designed to work at Ku,
Juan A. Vasquez-Peralvo +3 more
doaj +1 more source