A system linearization assembly generally includes a filter that is coupled to a measuring device. The filter is configured to receive a signal that includes a time varying parameter representing a plurality of frequency components including at least one component caused by non-linear intermodulation distortion, such as an odd-order intermodulation distortion component. The filter is also configured to isolate at least one harmonic of the frequency components with the same order as the component caused by non-linear intermodulation distortion. The measuring device is configured to measure at least one parameter of the isolated harmonic. The system linearization assembly also includes a controller coupled to the measuring device. The controller is configured to modify, for example by minimizing, the signal from the determined measurement to facilitate a modification, such as a reduction, of the component caused by non-linear intermodulation distortion.
Adaptive Cancellation of Intermodulation Distortion by Harmonic Feedback Controlled Bias Voltage Tuning
Adaptive Cancellation of Intermodulation Distortion by Harmonic Feedback Controlled Bias Voltage Tuning
Issue
Date
Publication Date
Patent No.
9,425,751
Category
Device and Method
Keywords: signal, signal delay, distortion
International Class: H03F1/32, H03F1/26, H03F3/193, H03G3/20