A self-calibrating quadrature mixing front-end for SDR

A self-calibrating quadrature mixing front-end for SDR

A quadrature mixing front-end is well-suited toward software define radio (SDR) applications, due to its low complexity and the inherent flexibility that it affords the radio front-end. Its performance is, however, severely affected by gain and phase mismatches between its two signal paths, as well...

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Bibliographische Detailangaben
Hauptverfasser: de Witt, J.J., van Rooyen, G.-J.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Africa
Application software
Baseband
Communication standards
Communication system performance
Filters
Frequency
Hardware
I/Q imbalance compensation
Performance gain
quadrature mixing
radio communication equipment
software defined radio
Topology
Transceivers
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Beschreibung
Zusammenfassung:A quadrature mixing front-end is well-suited toward software define radio (SDR) applications, due to its low complexity and the inherent flexibility that it affords the radio front-end. Its performance is, however, severely affected by gain and phase mismatches between its two signal paths, as well as the presence of unwanted DC offsets. This paper presents solutions for a self-calibrating quadrature transceiver. Practical implementation results indicate a significant improvement in the image and offset rejection capabilities of such a calibrated transceiver.
ISSN:2164-2958
2164-2974
DOI:10.1109/RWS.2008.4463442