Title :
Full-wave analysis of a two slot microstrip filter using a new algorithm for computation of the spectral integrals
Author :
Gothelf, Ulrich V. ; Ostergaard, A.
Author_Institution :
Electromagn. Inst., Tech. Univ. of Denmark, Lyngby, Denmark
fDate :
1/1/1993 12:00:00 AM
Abstract :
An integral equation is formulated in the spectral domain for a two slot microstrip filter using the exact Green´s function for the grounded dielectric substrate. Using a moment method (MM) procedure, the integral equation has been discretized. The elements of the impedance matrix and the excitation vector are given by two dimensional Sommerfeld-type integrals in closed form. An efficient and accurate numerical integration scheme for computation of the elements is presented. The S parameters obtained from the MM procedure have been found to be in excellent agreement with measurements
Keywords :
microstrip components; microwave filters; passive filters; waveguide theory; S parameters; exact Green´s function; excitation vector; full-wave analysis; grounded dielectric substrate; impedance matrix; integral equation; moment method; numerical integration; spectral domain; spectral integrals; two dimensional Sommerfeld-type integrals; two slot microstrip filter; Algorithm design and analysis; Current distribution; Geometry; Impedance; Integral equations; Microstrip filters; Scattering parameters; Surface waves; Testing; Transmission line matrix methods;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
