Compact wide dynamic range transmitter for point to point radio

A radio frequency transmitter comprising a modem which receives one or more input data signals and an adaptive predistortion signal and provides a baseband in-phase signal and a baseband quadrature signal. The transmitter may comprise a power amplifier module which receives the in-phase and quadratu...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NGUYEN THANH H, SCHAFER DAVID C, LAUDOLFF JAMES, NICHOLS TODD, SHEN YING, MASHBURN TRAVIS
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A radio frequency transmitter comprising a modem which receives one or more input data signals and an adaptive predistortion signal and provides a baseband in-phase signal and a baseband quadrature signal. The transmitter may comprise a power amplifier module which receives the in-phase and quadrature phase signals and provides a radio frequency output signal. A predistortion module receives the radio frequency signal, downconverts the radio frequency signal to an intermediate frequency signal, and downconverts the intermediate frequency signal to a baseband feedback signal. The transmitter samples the feedback signal and provides an adaptive predistortion signal to the modem.