WIRELESS COMMUNICATION UNIT, LINEARISED TRANSMITTER CIRCUIT AND METHOD OF LINEARISING THEREIN

WIRELESS COMMUNICATION UNIT, LINEARISED TRANSMITTER CIRCUIT AND METHOD OF LINEARISING THEREIN

A wireless communication unit includes a frequency generation circuit, and a linearised transmitter operably coupled to the frequency generation circuit and having a forward path for routing a signal to be transmitted; and a feedback path, operably coupled to a power amplifier and the forward path f...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ROZENTAL, MARK, GROSSMAN, OVADIA, BEN-AYUN, MOSHE
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:A wireless communication unit includes a frequency generation circuit, and a linearised transmitter operably coupled to the frequency generation circuit and having a forward path for routing a signal to be transmitted; and a feedback path, operably coupled to a power amplifier and the forward path for feeding back a portion of the signal to be transmitted. The feedback path and forward path form two loops in quadrature. The frequency generation circuit includes independent phase shift elements arranged to independently phase shift the two loops in quadrature ('I' and 'Q').