CMOS integrated commutated circuits for interference filtering at radio-frequency

Two ways of interference filtering, namely mixer-first receiver with acoustic filter load and N-path low pass filter (LPF), are presented and verified. The passive mixer-first architecture provides high linearity and reconfigurability. The acoustic load at intermediate frequency ensures good selectivity. Thereceiver operates at 3.5-to-6.2 GHz and achieves IIP3 of >+27 dBm at 1xBW offset with a minimum NF of 9.7 dB in measurement. For the N-path LPF, a mathematical analysis on N-path LPF is given, and a good match between theoretical plots and Cadence simulation is reported.

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Electrical & Computer Engr

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2022

Author dc:creator

• Sha, Mengze

Contributors dc:contributor

• Zhou, Jin

• Interference
• commutated capacitors
• mixer-first receiver
• high linearity
• N-path filter
• linear periodically time-variant (LPTV) circuit

Statement dc:rights

• Copyright 2021 Mengze Sha

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/113093

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/113093