Title :
An efficient impedance matrix calculation using the spline-type divided-difference interpolation technique
Author :
Kahng, Sungtek ; Choi, Jaehoon
Author_Institution :
Div. of Electr. & Comput. Eng., Hanyang Univ., Seoul, South Korea
fDate :
7/1/1999 12:00:00 AM
Abstract :
In this work, a spline-type divided-difference interpolation scheme is proposed to evaluate the impedance matrix elements in the method of moments (MoM) efficiently. This method is combined with the fast computational method of the basis-expanded and tested Green´s functions introduced in a recent literature. The proposed method is applied to analyze the characteristics of a microstrip gap discontinuity and an aperture coupled patch antenna. Numerical results obtained by using this approach are in good agreement with those of other approaches
Keywords :
Green´s function methods; antenna theory; impedance matrix; interpolation; method of moments; microstrip antennas; microstrip discontinuities; splines (mathematics); Green´s functions; aperture coupled patch antenna; divided-difference interpolation technique; fast computational method; impedance matrix calculation; method of moments; microstrip gap discontinuity; spline-type; Apertures; Green´s function methods; Impedance; Interpolation; Microstrip antennas; Moment methods; Patch antennas; Spline; Testing; Transmission line matrix methods;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
