2021 IEEE International Symposium on Circuits and Systems (ISCAS) 2021
DOI: 10.1109/iscas51556.2021.9401202
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A 0.7-1.5GHz Tunable Papoulis All-Pole Low-Pass Filter in 22nm CMOS FDSOI

Abstract: A tunable 10-stage all-pole (Papoulis) low-pass filter occupying 0.1815mm2 is designed and integrated as a building block in a 22nm CMOS FDSOI receiver for the 5G. Each filter stage comprises of a two-stage unity gain buffer with common mode feedback loop. Tunable resistors between each stage determine the bandwidth of the filter in the range of 0.7 GHz to 1.5 GHz. An identical filter structure, but with the outputs fed back to the inputs functions as an oscillator. Correlating the oscillation frequency with t… Show more

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Cited by 3 publications
(2 citation statements)
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“…To allow for flexibility, controls have been implemented to allow for filter bandwidth tuning. A standalone version of this filter, but with ten stages, was implemented, and results have been published in [ 7 ].…”
Section: Phased Array Receivermentioning
confidence: 99%
“…To allow for flexibility, controls have been implemented to allow for filter bandwidth tuning. A standalone version of this filter, but with ten stages, was implemented, and results have been published in [ 7 ].…”
Section: Phased Array Receivermentioning
confidence: 99%
“…The commonly used lowpass filters (LPFs) [7][8][9][10][11][12] can achieve a frequency range from DC to GHz, but generally, the DC component still exists. By cascading a highpass filter (HPF) with an LPF, [13][14][15] the DC component can be filtered out.…”
Section: Introductionmentioning
confidence: 99%