A widely tunable active RF filter topology

TitleA widely tunable active RF filter topology
Publication TypeConference Paper
Year of Publication2006
AuthorsAllidina, K., and S. Mirabbasi
Conference NameCircuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Pagination4 pp.
Keywords0.18 micron, 0.88 to 3.72 GHz, 1.8 V, 115 micron, 12 to 26 mW, 70 micron, active filters, active inductor, active RF filter, bandpass filter, CMOS analogue integrated circuits, CMOS process, inductors, integrated circuit design, microwave filters, Q-factor, tunable filter, tunable quality factor, UHF filters
Abstract

An active inductor based bandpass radio-frequency (RF) filter circuit topology is presented that achieves a wide tuning range. Based on the proposed structure, a prototype 2th-order filter is designed, simulated, and laid out in a 0.18mum CMOS process. The center frequency of the filter can be tuned from 880MHz to 3.72GHz. The quality factor of the filter can also be tuned. The filter, including the input and output buffers, consumes between 12 to 26mW from a 1.8V supply and occupies a chip area of 115mum times 70mum

URLhttp://dx.doi.org/10.1109/ISCAS.2006.1692726
DOI10.1109/ISCAS.2006.1692726

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