A linear inverse space mapping (LISM) algorithm to design linear and nonlinear RF and microwave circuits
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Date
2005-03Author
Rayas-Sánchez, José E.
Lara-Rojo, Fernando
Martínez-Guerrero, Esteban
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http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1406292https://hdl.handle.net/20.500.12032/70356
Description
A linear inverse space-mapping (LISM) optimization algorithm for designing linear and nonlinear RF and microwave circuits is described in this paper. LISM is directly applicable to microwave circuits in the frequency- or time-domain transient state. The inverse space mapping (SM) used follows a piecewise linear formulation, avoiding the use of neural networks. A rigorous comparison between Broyden-based "direct" SM, neural inverse space mapping (NISM) and LISM is realized. LISM optimization outperforms the other two methods, and represents a significant simplification over NISM optimization. LISM is applied to several linear frequency-domain classical microstrip problems. The physical design of a set of CMOS inverters driving an electrically long microstrip line on FR4 illustrates LISM for nonlinear design.ITESO, A.C.