Title :
Analysis of soft and hard surfaces using a hybrid FEM/Floquet´s mode technique
Author :
Calamia, M. ; Coccioli, R. ; Freni, A. ; Pelosi, Gianni
Author_Institution :
Dept. of Electr. Eng.,Florence Univ., Italy
fDate :
June 28 1993-July 2 1993
Abstract :
Artificially hard and soft surfaces, which are often used for their properties in radiating systems, are characterized by means of a hybrid technique which utilizes the finite element method (FEM) and an expansion of the electromagnetic field in terms of Floquet´s modes. This method is very efficient and allows the analysis of scattering from arbitrary periodic structures. No further difficulties arise in the formulation of the problem when the complexity of the structure is increased.<>
Keywords :
antenna theory; electromagnetic field theory; electromagnetic wave scattering; finite element analysis; Floquet´s modes; complexity; electromagnetic field; finite element method; hard and soft surfaces; radiating systems; scattering from arbitrary periodic structures; soft and hard surfaces; Antenna feeds; Bandwidth; Corrugated surfaces; Electromagnetic fields; Electromagnetic scattering; Finite element methods; Horn antennas; Propagation constant; Reflector antennas; Surface waves;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385325
