Title :
Optimum performance of pyramidal absorbers using impedance loading layers
Author :
Ford, K.L. ; Chambers, B.
Author_Institution :
Univ. of Sheffield, Sheffield
Abstract :
It was recently discovered in the works of Chambers and Ford (2006) that the inclusion of frequency selective surfaces (FSS) within the back section of the absorber can significantly improve the low frequency performance without significant increases in weight or cost. The aim of this paper is to use a simple transmission-line model of the impedance-loaded absorber structure to reveal what properties the FSS should have for optimal absorber performance.
Keywords :
anechoic chambers (electromagnetic); electromagnetic wave absorption; frequency selective surfaces; impedance matching; transmission line theory; frequency selective surfaces; impedance loading layers; impedance-loaded absorber structure; optimal absorber performance; pyramidal absorbers; transmission-line model; Absorption; Admittance; Dielectric losses; Frequency selective surfaces; Impedance; Permittivity; Reflectivity; Slabs; Solid modeling; Transmission lines;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
DOI :
10.1109/APS.2007.4396547
