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- Title
MESFET SMALL SIGNAL TRANSFER FUNCTIONS.
- Authors
Linden, P. A.; Fusco, V. F.
- Abstract
This article presents a signal flow graph representation far a microwave MESFET equivalent circuit. The model has been found to provide accurate fits to NE71000 MESFET chip scattering parameters; typical results are shown. Four symbolic transfer functions art presented which allow device scattering parameters to be computed. The symbolic transfer functions can be differentiated in order to determine component or device behavior sensitivities; sample formula are presented. The principle advantage of the symbolic transfer function approach is that when used as the function evaluation engine in a numerical optimization scheme computational overhead is small. In addition, having analytical derivatives available allows for rapid gradient and sensitivity evaluations that are not prone to numerical approximation inaccuracies.
- Subjects
FLOWGRAPHS; SYSTEM analysis; METAL semiconductor field-effect transistors; FIELD-effect transistors; MATHEMATICAL optimization
- Publication
Microwave & Optical Technology Letters, 1990, Vol 3, Issue 10, p343
- ISSN
0895-2477
- Publication type
Article
- DOI
10.1002/mop.4650031005