PHASE AND AMPLITUDE SIGNAL SENSING CIRCUIT FOR RADIO FREQUENCY (RF) TRANSMITTERS

PHASE AND AMPLITUDE SIGNAL SENSING CIRCUIT FOR RADIO FREQUENCY (RF) TRANSMITTERS

A radio frequency (RF) transmitter for self-sensing power and phase of an RF signal is provided. A local oscillator (LO) is configured to generate a LO signal. A power amplifier is configured to generate the RF signal from the LO signal, wherein the LO and RF signals are periodic signals sharing a w...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Starzer Florian, Kollmann Helmut, Schrattenecker Jochen Oliver
Format: Patent
Sprache:eng
Schlagworte:
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Beschreibung
Zusammenfassung:A radio frequency (RF) transmitter for self-sensing power and phase of an RF signal is provided. A local oscillator (LO) is configured to generate a LO signal. A power amplifier is configured to generate the RF signal from the LO signal, wherein the LO and RF signals are periodic signals sharing a waveform and a frequency. An IQ de-modulator is configured to down convert the LO signal and the RF signal into an in-phase (I) signal and a quadrature (Q) signal, wherein direct current (DC) voltages respectively of the I and Q signals define power and phase of the RF signal. A method for self-sensing power and phase of an RF signal, and a radar system within which the RF transmitter is arranged, are also provided.