Title :
Accurate modelling of cold-MESFETs for adaptive MMIC signal processing applications
Author :
Lucyszyn, S. ; Oztek-Yerll, C F ; Robertson, I D
Author_Institution :
Department of Electronic and Electrical Engineering, University of Surrey, Guildford, Surrey, GU2 SXH United Kingdom. Tel +(44) 1483 300800, Fax +(44) 1483 34139
Abstract :
At microwave frequencies, variable resistors can be implemented with cold-MESFETs. An accurate ultra-wideband model for cold-MESFETs is presented. The equivalent circuit model is based on the physical structure of the device and has a simple topology that requires only two bias dependant elements. The model has been used to accurately characterise cold-MESFETs from 0.05 to 20.05 GHz. Moreover, unlike that for a switched-MESFET, the model is accurate over a continuous and wide range of bias points.
Keywords :
Adaptive arrays; Adaptive signal processing; Capacitance; Electrodes; MESFETs; MMICs; Probes; Resistors; Tunable circuits and devices; Voltage;
Conference_Titel :
Microwave Conference, 1995. 25th European
Conference_Location :
Bologna, Italy
DOI :
10.1109/EUMA.1995.337150
