Title :
Asymmetry-symmetry decomposition: a new technique for efficient analysis of coupled antennas
Author :
Nuteson, T.W. ; Naishadham, K. ; Hardin, K.B. ; Paul, C.R.
Author_Institution :
Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA
Abstract :
The asymmetry-symmetry decomposition (ASD) technique is developed for the efficient method of moments (MOM) solution of coupled integral equations for surface currents on an asymmetrical structure, such as radiators with wire bends and microstrip discontinuities. The technique involves decoupling the symmetrical part of the problem and solving it by considering the resulting moment matrix symmetries. The method is illustrated by application to a microstrip bend discontinuity. Bent wire radiators in free space with structural and/or source-load asymmetries have been analyzed by ASD using MINNEC, and the predicted radiation field agrees well with measurements over a wide frequency range.<>
Keywords :
antenna theory; integral equations; matrix algebra; microstrip antennas; MINNEC; MOM; asymmetrical structure; asymmetry-symmetry decomposition; coupled antennas; coupled integral equations; free space; frequency range; measurements; method of moments; microstrip discontinuities; moment matrix symmetries; radiation field; radiators; source-load asymmetries; structural asymmetries; surface currents; wire bends; Extraterrestrial measurements; Frequency measurement; Integral equations; Message-oriented middleware; Microstrip; Moment methods; Symmetric matrices; Transmission line matrix methods; Variable speed drives; Wire;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221966
