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A 3 to 9-GHz Dual-band Up-Converter for a DS-UWB Transmitter in 0.18-μm CMOS

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3 Author(s)
Arasu, M.A. ; Inst. of Microelectron., Singapore ; Yuanjin Zheng ; Wooi Gan Yeoh

A dual-band up-converter (DB-UPC) for a dual-band direct sequence UWB transmitter is demonstrated in 0.18-mum CMOS. The DB-UPC translates a base-band UWB pulse to a 3-5 GHz low-band or 7-9 GHz high band. The DB-UPC consists of two mixers followed by a combiner. The high and low band mixers consist of a fully differential mixer core followed by a differential to single-ended converter. The DB-UPC has linear transfer characteristic for up to 0.7Vpp input pulse amplitude. Measured voltage gain and two-tone IIP3 of the DB-UPC are -8 dB, +10 dBm in the low-band and -14 dB, +14 dBm in the high-band respectively.

Published in:

Radio Frequency Integrated Circuits (RFIC) Symposium, 2007 IEEE

Date of Conference:

3-5 June 2007

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