Results 21 to 30 of about 2,644 (218)

Dual Polarized Reconfigurable Frequency Selective Surfaces [PDF]

, 2013
Novel band-stop active frequency selective surfaces (FSS) capable of modifying their response for different polarizations are proposed. Geometries based on full rings, and split rings are employed.
Sanz-Izquierdo, B., Parker, E.A.
core   +1 more source

Single-Layer Bandpass Active Frequency Selective Surface [PDF]

, 2008
A single-layer, bandpass, active FSS is presented. It shows good angle of incidence stability for TE incidence, at the operating frequency of 2.45 GHz. It is based on circular loop aperture with each unit cell having four PIN diodes.
Kenneth L. Ford, Chinthana Panagamuwa (1258632), Ford, Kenneth L., Weily, Andrew R., Ghaffer I. Kiani (7204973), Karu P. Esselle (7204976), John C. Batchelor (7206521), Ghaffer I. Kiani, Panagamuwa, C., Karu P. Esselle, John C. Batchelor, Esselle, Karu P., Ghaffer, I Kiani., Kenneth L. Ford (7204979), Batchelor, John C., Andrew R. Weily, C. Panagamuwa, Andrew R. Weily (7204982)   +17 more
core   +1 more source

Tuning Patch-Form FSS [PDF]

, 2010
The application of a novel biasing technique to tune frequency selective surfaces (FSS) made of patch elements is described. The methodology follows a recently developed technique where the biasing circuit of an active FSS is etched at the rear of a ...
Parker, Edward A., Robertson, J.-B., Sanz-Izquierdo, Benito, Batchelor, John C.   +3 more
core   +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., E.A. Parker, J. C. Batchelor, P. S. Taylor, Batchelor, John C., Taylor, P.S.   +5 more
core   +1 more source

Fabrication and characterisation of Frequency Selective Surface (FSS) for Terahertz Sensing Application

Journal of Physics: Conference Series, 2022
Abstract A frequency selective surface (FSS) structure based on a circular slot with 28 to 31 μm was fabricated using Electron Beam Lithography combined with wet etching technique on a 400 μm thick quartz substrate. The circular slot pattern, designed using the CST software, was transferred during the Electron Beam (EBL) exposure with ...
N S Ishak, N Zainal, F C Seman, S M Shah
openaire   +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., Sanz-Izquierdo, Benito, B Sanz-Izquierdo, Batchelor, John C., E A Parker, J C Batchelor   +5 more
core   +1 more source

Graphene-based polarization insensitive rasorber with tunable passband

Results in Physics, 2019
In this paper, a frequency-selective dual-polarization rasorber with absorption-transmission-absorption response is presented. The transmission window could be tunable when the chemical potentials of graphene loaded on the proposed rasorber are changed ...
Meijun Qu, Shufang Li
doaj   +1 more source

Tuning Technique for Active FSS Arrays [PDF]

, 2009
A novel biasing technique is described for active frequency selective slot arrays. The bandpass response can be switched between transmitting and reflecting modes, or tuned over a predetermined frequency range using two different biasing circuit ...
Parker, Edward A., Robertson, J.-B., Sanz-Izquierdo, Benito, Batchelor, John C.   +3 more
core   +1 more source

Influence of defective elements on performance of frequency selective surfaces [PDF]

, 2013
The performances of frequency selective surface arrays in which some of the conducting elements at randomly chosen locations were absent or defective are described.
Turki, Badredin, Parker, Edward A., Ziai, Mohamed A., Yeates, S. G., Sanchez-Romaguera, Veronica, Parker, E. A., Batchelor, John C., Sanchez-Romaguera, V., Turki, B. M., Yeates, Stephen, Batchelor, J. C., Ziai, M. A.   +11 more
core   +1 more source

A New Approach in Designing Multi-Layer Frequency Selective Surfaces based on Tuning Pole-Zeros of Individual Layers [PDF]

Journal of Intelligent Procedures in Electrical Technology, 2015
In this paper, a new approach (not new technique) is introduced for designing frequency selective surfaces (FSSs). We try to compose the desired frequency response using the frequency response of each constituent FSS.
Mahmoud Fallah, Ali Abdolali
doaj