The exact modelling of the properties of transmission line structures in microwave monolithic integrated circuits (MMICs) requires full-wave modelling of the electromagnetic field in the semiconductor and insulator regions as well as within the conductors. The transverse dimensions of the transmission structures at the frequency above 10 GHz are comparable to the skin depth. Therefore the accurate simulation of the electromagnetic field inside the conductors is necessary. In this paper we combine the transmission line matrix (TLM) and mode matching (MM) methods for full-wave analysis of transmission lines and discontinuities in RF-MMICs.
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