Title :
AC-coupled linearised GaAs MMIC circuits
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll., London, UK
Abstract :
Linearized circuits using GaAs MESFETs operating in class-A push-pull mode have been previously proposed for transconductor and self-conductor realization in which the even-order MESFET nonlinearity is effectively eliminated. The introduction of AC-coupling into these conductance circuits is proposed, and it shown that this allows linear class-AB operation with high efficiency and a simple method of tuning the conductance values. The design and simulation of a 0.5-5.0-GHz GaAs MMIC isolator illustrate the ideas presented
Keywords :
III-V semiconductors; MMIC; Schottky gate field effect transistors; active networks; field effect integrated circuits; gallium arsenide; microwave amplifiers; microwave isolators; 0.5 to 5.0 GHz; AC-coupling; GaAs; MESFETs; MMIC; class-AB operation; conductance circuits; isolator; self-conductor realization; semiconductors; tuning; Circuit synthesis; FETs; Gallium arsenide; Integrated circuit technology; Isolation technology; MESFET circuits; MMICs; Microwave technology; Microwave theory and techniques; Voltage;
Conference_Titel :
Circuits and Systems, 1992. ISCAS '92. Proceedings., 1992 IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0593-0
DOI :
10.1109/ISCAS.1992.229974
