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IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES 1 Global Modeling of Spatially Distributed Microwave and Millimeter-Wave Systems

By Michael B. Steer, James F. Harvey, Jamesw. Mink, Mostafa N. Abdulla, Student Member, Carlos E. Christoffersen, Student Member, Hector M. Gutierrez, Patrick L. Heron, Chris W. Hicks, Ahmed I. Khalil, Student Member, Usman A. Mughal, Student Member, Shunmin Wang and Er B. Yakovlev


Abstract — Microwave and millimeter-wave systems have generally been developed from a circuit perspective with the effect of the electromagnetic environment modeled using lumped elements or N-port scattering parameters. The recent development of the local reference node concept coupled with steady-state and transient analyses using state variables, allows the incorporation of unrestrained electromagnetic modeling of microwave structures in a circuit simulator. A strategy implementing global modeling of electrically large microwave systems using the circuit abstraction is presented. This is applied to the modeling of a quasioptical power combining amplifier. Index Terms — Microwave circuits, circuit field interaction, electromagnetic analysis, global modeling, method of moments, nonlinear analysis, circuit theory I

Year: 2008
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