QUADRATURE RADIO RECEIVER WITH GAIN-DEPENDENT MISMATCH CORRECTION

Certain aspects of the disclosure are directed to in-phase/quadrature, IQ, mismatch detection and correction in radio frequency receivers. According to a specific example, a method of manufacture or use comprises, in a quadrature radio-frequency receiver configured to process signals using I and Q c...

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Bibliographische Detailangaben
Hauptverfasser:	GABRIEL, Niels, HARMSZE, Francoise Jeannette, RUTTEN, Robert, BLINZER, Peter, MARSCHNER, Juergen Richard, Van ANSEM, Tjeu, STEENHOF, Frits Anthonie
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRONIC CIRCUITRY DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	Certain aspects of the disclosure are directed to in-phase/quadrature, IQ, mismatch detection and correction in radio frequency receivers. According to a specific example, a method of manufacture or use comprises, in a quadrature radio-frequency receiver configured to process signals using I and Q components, providing parameters indicative of IQ mismatches associated with circuitry of the quadrature radio-frequency receiver due to changes in signal gain. The method further includes, while using the quadrature radio-frequency receiver to receive and process a received radio signal, correcting for the IQ mismatches by using the parameters in response to actual signal gain change.