Title :
Analysis and design of reflector and horn antennas using multilevel fast multipole algorithms (MLFMA)
Author :
Zaw Zaw Oo ; Le-wei, L. ; Jian-Ying Li ; Er-Ping Li
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Kent Ridge, Singapore
Abstract :
The Multilevel Fast Multipole Algorithm (MLFMA) has been well developed for EM scattering problems to speed up the matrix-vector multiplication of iterative solver in Method of Moments. The MLFMA is implemented based on MoM code for arbitrarily shaped metal surfaces discretised in Rao, Wilton and Glisson (RWG) basis functions. The algorithm is verified by comparing the results with the exact analytical solutions for a perfectly conducting sphere. Subsequently it has been applied to a conical horn and parabolic reflector with different type of feeding providing with results with measurements.
Keywords :
antenna theory; computational electromagnetics; electric field integral equations; horn antennas; iterative methods; matrix multiplication; method of moments; reflector antenna feeds; sparse matrices; approximate representation; arbitrarily shaped metal surfaces; electric field integral equation; horn antennas; iterative solver; matrix-vector multiplication; method of moments; multilevel fast multipole algorithms; perfectly conducting sphere; reflector antennas; sparse matrices; Algorithm design and analysis; Art; Frequency; Green´s function methods; Horn antennas; Iterative methods; MLFMA; Physical optics; Reflector antennas; Testing;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1219346
