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An improved CAD procedure for oscillator circuit design using fast‐approximation formulas describing the voltage‐dependent non‐linear characteristics of the intrinsic equivalent circuit elements of the active devices
Author(s) -
Koster Bettina J.,
Beyer Adalbert,
Waldow Peter,
Wolff Ingo
Publication year - 2004
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.20046
Subject(s) - oscillation (cell signaling) , spurious relationship , equivalent circuit , microwave , voltage controlled oscillator , transistor model , transistor , linear circuit , voltage , circuit design , rc oscillator , control theory (sociology) , electronic engineering , physics , mathematics , vackář oscillator , computer science , electrical engineering , engineering , quantum mechanics , control (management) , artificial intelligence , statistics , genetics , biology
This article presents a selection of the calculated and measured results of an oscillator circuit using two source‐coupled junction field‐effect transistors (JFETs), which are investigated at a number of different operating points. These results illustrate vividly some strange but typical problems of the oscillator design, such as “spurious” and “wrong” or “jumping” oscillation frequency. © 2004 Wiley Periodicals, Inc. Int J RF and Microwave CAE 14: 550–563, 2004.