Title :
Absorbing boundary conditions for finite element modeling of phased array antennas
Author :
Frenkel, A. ; Brauer, J.R.
Author_Institution :
RAFAEL, Haifa, Israel
Abstract :
Absorbing boundary conditions (ABCs) are applied to surfaces of finite element models of phased array antennas. The new ABCs are derived for single and double planewaves, and their accuracy limit is investigated. The example application is to a phased array waveguide H-plane scan antenna, for which finite element results are shown to agree well with method of moments results.
Keywords :
antenna feeds; antenna phased arrays; boundary-value problems; electromagnetic wave absorption; finite element analysis; linear antenna arrays; microwave antenna arrays; scanning antennas; waveguides; absorbing boundary conditions; accuracy limit; double planewaves; finite element modeling; finite element results; linear antenna; method of moments results; phased array antennas; single planewaves; waveguide H-plane scan antenna; waveguide fed antenna; Antenna arrays; Antennas and propagation; Boundary conditions; Convergence; Finite element methods; Gratings; Message-oriented middleware; Moment methods; Phased arrays; Wire;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1994. AP-S. Digest
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-2009-3
DOI :
10.1109/APS.1994.408111
