Abstract

Multi-MESFET MMICs have a key role in high frequency communication systems for a variety of linear and nonlinear functions. Following a review of a systematic synthesis procedure and some example circuits already implemented, this paper addresses the key issue of distortion generation in multi-FET circuits and also the device models needed for understanding the distortion mechanisms and prediction of nonlinear circuit performance. Finally, some techniques for reducing the distortion generated are considered and applied to an isolator and a frequency doubler,