Summary
International Symposium on Antennas and Propagation
2006
Session Number:3C1b
Session:
Number:3C1b-6
A Fast Iterative Algorithm by Using Current/Voltage Unknowns for Small Antenna Design with Finite Ground Plane
Ken Takei, Youhei shirakawa, Morihiko lkegaya,
pp.1-4
Publication Date:2006/11/2
Online ISSN:2188-5079
Summary:
A novel iterative algorithm using the method of moment calculation with voltage unknowns is proposed for designing antennas with a large ground plane. The proposed algorithm uses the inverse matrix obtained from the usual decomposition of a fast multipole method impedance matrix via MacLaurin’s expansion. Using this algorithm, we reduced the computational time of electromagnetic performances and memory. Electromagnetic performances of a conducting plate, including antenna pattern, were calculated by using a direct algorithm with voltage unknowns, an iterative algorithm with current unknowns, and the proposed algorithm. Numerical results show an advantage when using the proposed algorithm as compared to the other algorithms. Using the proposed algorithm in a trial-and-error sequence, we determined the most suitable antenna pattern with good impedance matching in a rectangular conducting plate in twelve hours.