Title :
Application of time-domain finite-volume method to antenna and array problems
Author :
Mohammadian, A.H. ; Shankar, V. ; Hall, W.F.
Author_Institution :
Rockwell Int. Sci. Center, Thousand Oaks, CA, USA
Abstract :
A preliminary study regarding the potential of a time-domain finite-volume method to solve radiation problems has been carried out. The results of this preliminary study are very encouraging and reveal a great potential in dealing with various kinds of radiating structures. This potential in the area of printed antennas is particularly important because printed antennas often comprise multilayers of dielectric materials with nonplanar profile. Another area of application of the proposed method is computation of antenna transients and radiation due to nonsinusoidal excitations. Some sample results are presented, namely radiation contours and radiation patterns for an open-ended parallel-plate waveguide, a two-dimensional horn, and a binomial array of parallel-plate waveguides.<>
Keywords :
antenna radiation patterns; directive antennas; microstrip antennas; microwave antenna arrays; time-domain analysis; waveguide antennas; antenna problems; antenna radiation; antenna transients; binomial array; dielectric materials; nonplanar profile; nonsinusoidal excitations; open-ended parallel-plate waveguide; printed antennas; radiating structures; radiation contours; radiation patterns; radiation problems; time-domain finite-volume method; two-dimensional horn; Antenna arrays; Antenna feeds; Aperture antennas; Computational fluid dynamics; Electromagnetic scattering; Finite volume methods; Moment methods; Optical scattering; Reflector antennas; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.
Conference_Location :
Dallas, TX, USA
DOI :
10.1109/APS.1990.115277
