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-domain analysis. In conjunction with the cavity-resonance technique, it enables one to efficiently extract the s-parameters of three-dimensional planar circuits. To demonstrate the generality and validity of the proposed method, numerical analyses are performed for several structures such as microstrip resonators, planar transmission-line steps, and a parallel coupled-line filter. The convergence behaviors are provided for line discretization based on the pseudospectral strategy and finite difference (FD), respectively. The calculated results are compared with those published in previous literature. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 31: 340–345, 2001. [ABSTRACT FROM AUTHOR]