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Fast real‐time convolution algorithm for transients of nonlinearly‐terminated microwave multiport circuits
Author(s) -
Chiang ITing,
Chew Weng Cho
Publication year - 2003
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.11190
Subject(s) - convolution (computer science) , microwave , computation , port (circuit theory) , algorithm , nonlinear system , electronic circuit , electronic engineering , computer science , engineering , electrical engineering , physics , telecommunications , artificial intelligence , quantum mechanics , artificial neural network
In this work, a fast real‐time convolution algorithm is proposed. By using this approach, the cost for real‐time convolution in the presence of nonlinear terminations is reduced from O ( N 2 ) to O ( N log 2 N ). It is important to reduce the cost for the convolution operation because it usually dominates the computation time in a nonlinear circuit simulation. A nonlinearly‐terminated microwave 3‐port circuit, characterized by S parameters, is employed to demonstrate the efficiency of this fast algorithm. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 39: 280–282, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11190