Nanotube technology for microwave applications

In this paper we present an overview of the high-frequency properties nanotube and nanowire technology for microwave applications. We discuss circuit models of the ac performance of active, ballistic 1d transistor structures, leading to the prediction that THz cutoff frequencies should be possible. Issues of economics and manufacturability, as well as device-to-device variation, constitute a major challenge to be met before the technology is ready for system insertion. Still, speed is one of the promises of nanotechnology, and nanotube and nanowire devices are worth serious consideration for microwave applications.