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该论文提出了一种用于9频带WiMedia UWB的可重构解调器，集成了3-5GHz敏捷合成器，采用65nm CMOS工艺，解决了宽带系统中关键RF电路模块的设计挑战。
University of Modena and Reggio Emilia, Modena, Italy Istituto Universitario Studi Superiori di Pavia, Pavia, Italy 3 University of Pavia, Pavia, Italy 1 2 Receiver ICs realized in CMOS technology leverage the narrowband nature of wireless standards to meet specifications at low power levels. The advent of wideband systems, e.g. software-defined radios and UWB technology, is determining new emphasis on innovative techniques for key RF circuit blocks, and on synthesizers in particular [1-4]. Ring-oscillator-based solutions lend themselves to wideband operation but the signal quality at moderate power consumption is usually inadequate, while LC-tank-based oscillators do not cover the range requiring multiple VCOs. Sum and difference frequencies can be generated from a single VCO and its divided replica by means of SSB mixers. Unfortunately, significant spurious tones are created due to non-idealities
Andrea Mazzanti1, Mohammad B. Vahidfar2, Marco Sosio3,
Francesco Svelto3