Jürgen Rogin,
Direct Conversion Receiver Design
for Wideband Cellular Communications.
2004; 186 pages. € 64,00. ISBN 3-89649-928-9

This dissertation describes the design of a direct-conversion receiver for third generation mobile communications. Receiver requirements are derived from the respective type approval tests, and receiver immunity to the own transmit signal is identified as a key challenge influencing the receiver planning stage. After a comparison to GSM receiver requirements, issues arising from the choice of the direct-conversion architecture are explained. Key aspects of the baseband part are offset compensation and minimization of settling transients due to programmable gain changes. A thorough analysis of such transients is presented and a minimization strategy is proposed. The description of the actual design of a 0.13µm CMOS receiver for UMTS along with its experimental characterization concludes the work.
About the Author
Jürgen Rogin received the Dipl.-Ing. degree in Electrical Engineering from the Swiss Federal Institute of Technology (ETH), Zürich, in 1999. In the same year, he joined the Integrated Systems Laboratory (IIS) of ETH as a research and teaching assistant, where he worked in the field of receiver design for radio communications.

Keywords (english):
Direct Conversion Receiver, UMTS, WCDMA, Mobile Communications, Receiver Planning, Offset Compensation, PGC Transients, RF-CMOS

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