A novel Envelope Following (EF) method is presented for fast and accurate transient simulation of microwave and RF circuits with almost-periodic responses. Targeted circuits contain high-frequency components whose amplitudes vary slowly. The proposed high-order EF method is based on a stable and high-order Obreshkov formula (ObF). Use of high-order formula allows accurate and fast analysis while keeping the same accuracy as the conventional low-order integration methods and is validated by the presented numerical example.

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Keywords Circuit Simulation, Obreshkov Formula, Periodic Responses, Stable High-Order Methods, Time-domain analysis, Transient Analysis
Persistent URL dx.doi.org/10.1109/MWSYM.2014.6848307
Conference 2014 IEEE MTT-S International Microwave Symposium, IMS 2014
Farhan, M. (Mina), Gad, E. (Emad), Nakhla, M.S, & Achar, R. (2014). High-order envelope following method for accurate transient analysis of almost periodic electrical circuits. In IEEE MTT-S International Microwave Symposium Digest. doi:10.1109/MWSYM.2014.6848307