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Broadband Modeling of High-Frequency Microwave Devices

TitleBroadband Modeling of High-Frequency Microwave Devices
Publication TypeJournal Article
Year of Publication2009
AuthorsPaul, D., M. S. Nakhla, R. Achar, and A. Weisshaar
JournalIEEE Transactions on Microwave Theory and Techniques
Pagination361 - 373
Date Published02/2009
Keywordslarge-scale augmentation, linear device modeling, multiport parameters, passive macromodels

Circuit modeling of high-frequency devices described by tabulated multiport parameters has generated immense interest during recent years. In most cases, equivalent circuit models (ECMs) are available to the designers, which correlate well with the measured parameters at lower frequencies, however, deviate at higher frequencies. Traditional efforts to improve ECMs are device specific, laborious, and ad-hoc in nature. In order to address these difficulties, this paper presents an efficient and automated algorithm to identify appropriate frequency-dependent elements for adding to the ECM at arbitrary locations so as to correct for high-frequency errors. The new method enables the designers to retain their existing physical models while providing a means to capture the high-frequency effects accurately.

Short TitleIEEE Trans. Microwave Theory Techn.