Title :
Patch antennas on ferromagnetic substrates
Author :
Brown, A. ; Gong, J. ; Kempel, L. ; Volakis, J.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
Biased ferrite materials have been used for electromagnetic applications, particularly those involving printed microwave circuits. Their appeal is that their electrical properties can be easily changed with frequency. By varying the strength of the applied magnetic field, ferrites exhibit interesting characteristics, including non-reciprocal effects, frequency tuning by changing external biasing, polarization diversity using a single element, and various other useful properties.
Keywords :
boundary integral equations; ferrites; ferromagnetic materials; finite element analysis; magnetic anisotropy; microstrip antennas; anisotropic materials; applied magnetic field; biased ferrite materials; electrical properties; electromagnetic applications; ferromagnetic substrates; finite element boundary integral analysis; frequency; frequency tuning; nonreciprocal effects; polarization diversity; printed microwave circuits; square patch antennas; Analytical models; Anisotropic magnetoresistance; Beams; Directive antennas; Ferrites; Magnetic materials; Magnetic properties; Patch antennas; Radar antennas; Solid modeling;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.631534
