Accession Number:

ADA574839

Title:

High Dynamic Range Nonlinear Measurement using Analog Cancellation

Descriptive Note:

Final rept. Jun-Jul 2012

Corporate Author:

ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE

Report Date:

2012-10-01

Pagination or Media Count:

26.0

Abstract:

An active analog canceller system is implemented to maximize the dynamic range of a two-tone nonlinear measurement, a common test for nonlinear radio frequency behavior. The canceller uses active feedforward cancellation, controlled by a fully automated iterative algorithm. The system enables testing of a variety of nonlinear channels and devices, either by direct connection or wireless probing. In this report, the advantages of feedforward cancellation are summarized, a two-tone architecture using this cancellation is presented, the software algorithm for automating measurements using this architecture is explained, and the performance of the cancellation system recently constructed at the U.S. Army Research Laboratory ARL is evaluated using measured data.

Subject Categories:

  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE