Kim, Youngsik ; Kim, JiYoun ; Kim, Sungwoo ; Kim, Bumman
(2001)
A Novel method for the Higher Order components extraction of the Channel current in GaAs MESFET.
In: Gallium Arsenide applications symposium. Gaas 2001, 24-28 September 2001, London.
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Abstract
We propose a new simple and accurate method for the higher order Taylor coefficient extraction of the channel current in GaAs MESFET. In this method, the nonlinear channel currents are directly measured through a hole current sensor and spectrum analyzer. Taylor coefficients up to 3rd order have been successfully extracted from the measured currents of the low frequency(4MHz, 25MHz) two-tone test, and a resonator is added to the load to remove the gate frequency component from the drain voltage, which makes the problem simple. The proposed extraction procedure is simple and straightforward.
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