Kobal, EnisEnisKobalSiriburanon, TeerachotTeerachotSiriburanonStaszewski, Robert BogdanRobert BogdanStaszewskiZhu, AndingAndingZhu2022-03-022022-03-022021 IEEE2021-09-229781665437479http://hdl.handle.net/10197/12787The IEEE 47th European Solid State Circuits Conference (ESSCIRC 2021), Virtual Conference, 6-9 September 2021This paper introduces a phase shifter based on switched filters for mm-wave 5G MIMO transmitters. It is realized in 22 nm FD-SOI CMOS and exploits the use of back-gate biasing. The new approach features strong tolerance to process, voltage and temperature (PVT) variations and thus can maintain low phase error with fine phase tuning capability supporting a large bandwidth. Measurement results show that the 4-bit phase shifter achieves 3.5° rms phase error at 28 GHz. The proposed phase shifter can maintain <5° of the worst-case rms phase error when operating across 24 to 29.5 GHz resulting in 20.56% fractional bandwidth which is the largest among the published switched-filter phase shifters to date.en© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Temperature measurementPhase measurementTransmittersPhase shiftersMeasurement uncertaintySwitchesTopologyConference Publication10.1109/ESSCIRC53450.2021.95678452022-02-2413/RC/207717/NSFC/4850https://creativecommons.org/licenses/by-nc-nd/3.0/ie/