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Tunable RF Notch Filters for Blocker Suppression
Periodically time-variant passive 8-path notch filters are demonstrated in 65nm CMOS technology, with a notch frequency tunable from 100MHz to 1.2GHz with a clock signal. In a 50Ω environment, filter insertion loss in the pass band is 1.4-2.8dB, while the rejection at the notch frequency is >20dB. Given their P1dB> +2dBm and IIP3> +17dBm, the filters can protect radio receivers from blocking ov...
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ژورنال
عنوان ژورنال: Frequenz
سال: 2021
ISSN: 2191-6349,0016-1136
DOI: 10.1515/freq-2020-0177