Analysis of three-dimensional mmic by spectral-pseudospectral domain technique

In this paper, a spectral-pseudospectral domain technique is presented for the full-wave analysis of a three-dimensional MMIC. This technique combines the advantages of pseudospectral method of lines with those of spectral-do main analysis. In conjunction with the cavity-resonance technique, it enabl es one to efficiently, extract the s-parameters of three-dimensional planar circuits. To demonstrate the generality, and validity of the proposed meth od, numerical analyses are performed for several structures such as microst rip resonators, planar transmission-line steps, and a parallel coupled-line filter. The convergence behaviors are provided for line discretization bas ed on the pseudospectral strategy, and finite difference (FD), respectively . The calculated results are compared with those published in previous lite rature. (C) 2001 John Wiley & Sons, Inc.