Title :
The Volterra input-output map of a high-frequency amplifier as a practical alternative to load-pull measurements
Author :
Verbeyst, Frans ; Vanden Bossche, M.
Author_Institution :
Hewlett-Packard Network Meas. & Description Group, Vrije Univ., Brussels, Belgium
fDate :
6/1/1995 12:00:00 AM
Abstract :
Using a nonlinear black-box model based on the Volterra theory it is possible to describe the nonlinear behavior of a high-frequency amplifier. Acquiring only a strongly reduced set of measurements, it is easy to predict the load impedance curves anywhere on a Smith Chart. The classic load-pull approach involves the acquisition of a large amount of data and still lacks a description of the nonlinear behavior of the amplifier in deviating situations
Keywords :
HF amplifiers; S-parameters; Volterra equations; network analysers; nonlinear network analysis; Smith Chart; Volterra input-output map; Volterra theory; high-frequency amplifier; load impedance curves; load-pull measurements; nonlinear behavior; nonlinear black-box model; Frequency; Impedance measurement; Kernel; Power amplifiers; Power generation; Predictive models; Reflection; Scattering parameters; Solids; Stress;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
