The Design of E-band MMIC Amplifiers

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  • Author: Liam Devlin, Stuart Glynn, Graham Pearson, Andy Dearn
The worldwide availability of a large amount of spectrum at 71-76GHz and 81-86 GHz (commonly known as "E-band") for high data-rate wireless links has led to substantial interest. The design of electronic equipment at such high frequencies is challenging. Parasitic effects that were negligible at microwave frequencies become problematic and the availability of suitable active components is very restricted. The development of custom GaAs MMICs offers a route to realising low-cost, reproducible E-band components. This paper addresses the design and implementation of E-band MMIC amplifiers. It considers process selection, design challenges and practical approaches and presents the measured and modelled performance of a single-stage E-band gain block.