Simplifying and Interpreting Two-Tone Measurements

Published

November 1, 2004

Author(s)

Kate Remley, Dylan Williams, Dominique Schreurs, John Wood

Abstract

We develop a mathematical description of the response of systems to second-order memory mechanisms based on a time-varying gain modulation function. We show that intermodulation products arising from interactions at baseband have different phase symmetries from both interactions at second-harmonic frequencies and gain compression and thus, may be readily distinguished through measurement. We also use a technique for measuring and aligning the phase of intermodulation products outside the measurement bandwidth of our instrumentation to identify contributions to memory with broad frequency response.

Citation

IEEE Transactions on Microwave Theory and Techniques

Volume

52

Issue

11

Pub Type

Journals

Download Paper

https://doi.org/10.1109/TMTT.2004.837195

Local Download

Citation

Remley, K. , Williams, D. , Schreurs, D. and Wood, J. (2004), Simplifying and Interpreting Two-Tone Measurements, IEEE Transactions on Microwave Theory and Techniques, [online], https://doi.org/10.1109/TMTT.2004.837195, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=31682 (Accessed October 20, 2025)