System linearization assembly and method for use in modifying distortion components

摘要

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.

主权项

1. A system linearization assembly comprising:
a filter configured to couple to an output bias tee, wherein said filter is further 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; andisolate at least one harmonic of the plurality of frequency components with the same order as the at least one component caused by non-linear intermodulation distortion, wherein the isolated at least one harmonic is substantially proportional to the at least one component caused by non-linear intermodulation distortion; and a measuring device coupled to said filter, wherein said measuring device is configured to determine a measurement of at least one parameter of the isolated at least one harmonic; and a controller coupled to said measuring device, wherein said controller is configured to modify the signal from the determined measurement to facilitate a modification of the at least one component caused by non-linear intermodulation distortion.