MULTI-BAND OBSERVATION RECEIVER

摘要

Transmitter observation receivers and methods are described that can predistortion-compensate transmitters capable of operating in multiple communication bands and frequency ranges. Such observation receivers and method involve generating at least one compensation signal such that a signal to be transmitted that is within a bandwidth that simultaneously encompasses multiple frequency ranges is compensated.

主权项

1. An arrangement for a pre-distortion-compensated transmitter for a communication system, comprising:
an electronic processor circuit configured for converting a base-band signal to be transmitted to a spectrally shifted, pre-distorted signal to be transmitted based on at least one compensation signal; a power amplifier configured for generating an amplified version of the spectrally shifted, pre-distorted signal to be transmitted, wherein the amplified version is in one frequency range of a plurality of frequency ranges used in the communication system; a coupler configured for generating a sample signal from the amplified version; and a transmitter observation receiver (TOR) configured for receiving the sample signal and generating at least one compensation signal based on the sample signal; wherein the at least one compensation signal is generated such that a signal to be transmitted that is within a bandwidth that simultaneously encompasses multiple frequency ranges is compensated, and the electronic processor circuit converts the base-band signal to be transmitted such that a relationship between the base-band signal to be transmitted and the sample signal is substantially linear with constant phase.