Look-up table approach for RF circuit simulation using a novel measurement technique

Abstract

A simple and novel measurement technique to obtain three-port network-parameters of MOS transistors from two-port measurements on a single test structure is presented. The measured data is used in the form of a lookup table (LUT) for RF circuit simulation. It is shown that simulation results obtained with the LUT approach for a 2.4-GHz low-noise amplifier match very well with measurements, thus demonstrating the usefulness of the LUT approach. It is also shown that, for high frequencies, it is important to use the tables of y-parameters actually measured rather than those interpolated from low-frequency measurements. This is illustrated with a tuned amplifier simulation example.