Title :
Evaluation of the radar cross section of circular microstrip patches on anisotropic and chiral substrates
Author :
Losada, V. ; Boix, R.R. ; Medina, F.
Author_Institution :
Dept. of Appl. Phys., Seville Univ., Spain
fDate :
11/1/2001 12:00:00 AM
Abstract :
Galerkin´s method in the Hankel transform domain (HTD) is applied to the determination of the radar cross section (RCS) of a circular microstrip patch printed on a substrate which may be an uniaxial anisotropic dielectric, a magnetized ferrite, or a chiral material. The results obtained for circular patches on magnetized ferrites show that the RCS of these patches can be substantially reduced in a tunable frequency band when a bias magnetic field is applied. It is also shown that the results obtained for the RCS of circular patches printed on chiral materials can be substantially different from those obtained when substrate chirality is ignored
Keywords :
Galerkin method; Hankel transforms; anisotropic media; chirality; electric field integral equations; ferrites; microstrip antennas; radar cross-sections; substrates; EFIE; Galerkin method; Hankel transform domain; RCS; anisotropic substrates; bias magnetic field; chiral substrates; chirality; circular microstrip patches; electric field integral equation; magnetized ferrite substrate; radar cross section; tunable frequency band; uniaxial anisotropic dielectric substrate; Anisotropic magnetoresistance; Dielectric substrates; Ferrites; Magnetic anisotropy; Magnetic domains; Magnetic materials; Microstrip; Moment methods; Perpendicular magnetic anisotropy; Radar cross section;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
