Design and process sensitivity of a two-stage 6-18-GHz monolithic feedback amplifier
Abstract
The design of a 6-18-GHz two-stage monolithic feedback amplifier is discussed, and the critical process and FET parameters are identified. Variations in circuit performance experienced during a pilot production run are correlated with the predictions of a sensitivity analysis. Five circuit model parameters were selected for study: substrate height, GaAs sheet resistance, gate-source capacitance, transconductance, and drain-source resistance. Measured results show the importance of substrate height and sheet resistance in the control of gain flatness. An example on-slice RF performance distribution is presented, showing the suitability of the circuit and fabrication process for high-volume production.
- Publication:
-
IEEE Transactions on Microwave Theory Techniques
- Pub Date:
- December 1985
- Bibcode:
- 1985ITMTT..33.1567B
- Keywords:
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- Amplifier Design;
- Computer Aided Design;
- Feedback Amplifiers;
- Integrated Circuits;
- Microwave Circuits;
- Network Synthesis;
- Equivalent Circuits;
- Field Effect Transistors;
- Gallium Arsenides;
- Ion Implantation;
- Electronics and Electrical Engineering