A 1.2-V Single-Sideband Upconverter System with High Spurious Suppression for UWB Frequency Synthesizers
Refereed conference paper presented and published in conference proceedings

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摘要This paper presents a precise single-sideband (SSB) upconverter system for use in UWB Mode 1 frequency synthesizers. A divide-by-two circuit and a notch filter are employed to generate accurate quadrature sinusoids at the required offset frequency with low harmonic distortion for precise SSB mixing. Double degeneration technique is applied to linearize the SSB upconverter for minimizing nonlinearities and unwanted spurs. Fabricated in a 0.18-mu m CMOS process, the SSB upconverter system achieves a high image rejection ratio of 50.2 dB at a low supply voltage of 1.2 V. The in-band and out-of-band spurious suppressions are at least 32 dB and 42 dB, respectively. Moreover, stable performance is obtained even under a 1-V supply.
著者Tang SK, Pun KP, Chan CF
會議名稱IEEE Radio Frequency Integrated Circuits Symposium (RFIC)
會議開始日07.06.2009
會議完結日09.06.2009
會議地點Boston
會議國家/地區美國
出版年份2009
月份1
日期1
出版社IEEE
頁次475 - 478
國際標準書號978-1-4244-3377-3
國際標準期刊號1529-2517
語言英式英語
關鍵詞Frequency synthesizer; multi-band OFDM (MB-OFDM); single-sideband (SSB) upconverter; spurious suppression; ultra-wideband (UWB)
Web of Science 學科類別Engineering; Engineering, Electrical & Electronic; Telecommunications

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