A Genetic Algorithm for Generating RF Circuit Models from Calibrated Broadband Measurements

Published

December 1, 2011

Author(s)

Thomas M. Wallis

Abstract

A genetic algorithm has been developed to generate circuit models from calibrated broadband measurements of coaxial and on-wafer devices under test (DUTs). The algorithm randomly builds a population of circuit models from lumped as well as distributed elements and compares the simulated scattering parameters for those models with calibrated measurements. The genetic approach iteratively culls the circuit models that agree most closely with the measurements. In order to “test-drive” this approach, the genetic algorithm was applied to calibrated measurements of several two-port 1.85 mm coaxial DUTs. The resulting circuit models are reasonable and their simulated response agrees closely with the measurements. Subsequently, the algorithm was applied to calibrated measurements of a two-port, on-wafer nanowire device. This algorithm automates exploration of potential circuit models for yet-to-be-modeled devices, including those that incorporate nanowires.

Proceedings Title

ARFTG 78th Microwave Measurement Symposium and IEEE Topical Symposium on Power Amplifiers

Conference Dates

November 29-December 2, 2011

Conference Location

Tempe, AZ

Pub Type

Conferences

Download Paper

https://doi.org/10.1109/ARFTG78.2011.6183870

Citation

Wallis, T. (2011), A Genetic Algorithm for Generating RF Circuit Models from Calibrated Broadband Measurements, ARFTG 78th Microwave Measurement Symposium and IEEE Topical Symposium on Power Amplifiers, Tempe, AZ, [online], https://doi.org/10.1109/ARFTG78.2011.6183870 (Accessed January 15, 2025)