Title :
A Monolithic C-Band Variable Gain Amplifier with Digital Control
Author :
Siweris, Heinz J.
Author_Institution :
Siemens AG, Corporate Research and Development, ZFE ME FKE 2, Otto-Hahn-Ring 6, 8000 Mÿnchen 83, Germany
Abstract :
A GaAs monolithic variable gain amplifier based on segmented dual-gate FETs is described. Design, fabrication, and performance of the MMIC are outlined. Special emphasis is given to the modeling of the active devices. It is shown that a simple equivalent circuit is sufficient to accurately model multiple segmented dual-gate FETs at least up to X-band.
Keywords :
Circuits; Digital control; FETs; Gain; Gallium arsenide; MESFETs; MMICs; Microwave devices; Phased arrays; Voltage control;
Conference_Titel :
Microwave Conference, 1991. 21st European
Conference_Location :
Stuttgart, Germany
DOI :
10.1109/EUMA.1991.336553
