A 1.56GHz wide-tuning all digital FBAR-based PLL in 0.13µm CMOS. - Julie R. Hu; Richard C. Ruby; Brian P. Otis (CICC, 2010)

A 1.5GHz 0.2psRMS jitter 1.5mW divider-less FBAR ADPLL in 65nm CMOS. - Julie R. Hu; Richard C. Ruby; Brian P. Otis (CICC, 2012)

21.7 A 1.8mW PLL-free channelized 2.4GHz ZigBee receiver utilizing fixed-LO temperature-compensated FBAR resonator. - Keping Wang; Jabeom Koo; Richard C. Ruby; Brian P. Otis (ISSCC, 2014)

27.4 A 0.8mm3 ±0.68psi single-chip wireless pressure sensor for TPMS applications. - Manohar Nagaraju; Andrew Lingley; Suresh Sridharan; Jingren Gu; Richard C. Ruby; Brian P. Otis (ISSCC, 2015)

25.9 A ±3ppm 1.1mW FBAR frequency reference with 750MHz output and 750mV supply. - Kannan A. Sankaragomathi; Jabeom Koo; Richard C. Ruby; Brian P. Otis (ISSCC, 2015)

A 350uW 2GHz FBAR transformer coupled Colpitts oscillator with close-in phase noise reduction. - Jabeom Koo; Keping Wang; Richard C. Ruby; Brian P. Otis (CICC, 2017)

A ± 1.55ppm Stable FBAR Reference Clock with Oven-Controlled Temperature Compensation. - Jabeom Koo; Kannan A. Sankaragomathi; Richard C. Ruby; Brian Otis (J. Electr. Comput. Eng., 2018)

Design of 1.8-mW PLL-Free 2.4-GHz Receiver Utilizing Temperature-Compensated FBAR Resonator. - Keping Wang; Lei Qiu 002; Jabeom Koo; Richard C. Ruby; Brian Otis (IEEE J. Solid State Circuits, 2018)

A 1.53 mm3 crystal-less standards-compliant Bluetooth Low Energy module for volume constrained wireless sensors. - Bob Wiser; Kannan A. Sankaragomathi; Justin Schauer; Sean Korhummel; Pouya Kavousian; Daniel J. Yeager; Nivi Arumugam; Nate Pletcher; David Barkin; Reed Parker; Lori Callaghan; Richard C. Ruby; et al. (VLSI Circuits, 2019)

A 2-GHz FBAR-Based Transformer Coupled Oscillator Design With Phase Noise Reduction. - Jabeom Koo; Keping Wang; Richard C. Ruby; Brian P. Otis (IEEE Trans. Circuits Syst. II Express Briefs, 2019)