High power transmitter employing a high power QAM modulator

摘要: A high power RF transmitter that uses modulators perform quadrature amplitude modulation (QAM) on a carrier signal after amplification is performed in the source. The present invention transposes locations of and amplifier, thus directly modulates signal. An source generates split by splitter. lookup table containing 2 B words K bits receives transmit data mapping K-tuple modulating data. plurality phase key are respectively coupled to outputs splitter modulate each components using combiner for outputting QAM constellation from transmitter.