Passive GaAs FET Switch Models and Their Application in Phase Shifters

Abstract
A new device model is proposed for the zero bias (V/sub gs/ = 0) and pinch off (V/sub gs/ -V/sub p/) states for GaAs MESFETs operated in a passive mode (I/sub ds/ = 0). The agreement between measurements and predicted S-parameter data is better than 90% which is 40-50% improvement over previously published models. The FET switch model will be discussed. The fabrication and performance of 12 GHz MMIC phase shifters designed using this new model will be described.

This publication has 6 references indexed in Scilit: