An X-Band Oscillator Utilizing Overtone Lithium Niobate MEMS Resonator and 65-nm CMOS

Ali Kourani, Yansong Yang, Songbin Gong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents an 8.6 GHz oscillator utilizing a third antisymmetric overtone (A_{3}) in a lithium niobate (LiNbO3) resonator for 5G communications. The oscillator consists of an acoustic resonator in a closed loop with cascaded RF tuned amplifiers (TAs) built on TSMC RF GP 65 nm CMOS. The TAs bandpass response, set by on-chip inductors, satisfies the Bark-hausen's oscillation conditions for A_{3} while suppressing the fundamental and higher-order resonances. The oscillator achieves a measured phase noise of -56 and -113 dBc/Hz at 1 kHz and 100 kHz offsets from an 8.6 GHz output while consuming 10.2 mW of dc power. The oscillator also attains a figure-of-merit of 201.6 dB at 100 kHz offset, surpassing the state-of-the-art (SoA) EM and RF-MEMS oscillators.

Original languageEnglish (US)
Title of host publicationIFCS-ISAF 2020 - Joint Conference of the IEEE International Frequency Control Symposium and IEEE International Symposium on Applications of Ferroelectrics, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728164304
DOIs
StatePublished - Jul 2020
Event2020 Joint Conference of the IEEE International Frequency Control Symposium and IEEE International Symposium on Applications of Ferroelectrics, IFCS-ISAF 2020 - Virtual, Keystone, United States
Duration: Jul 19 2020Jul 23 2020

Publication series

NameIFCS-ISAF 2020 - Joint Conference of the IEEE International Frequency Control Symposium and IEEE International Symposium on Applications of Ferroelectrics, Proceedings

Conference

Conference2020 Joint Conference of the IEEE International Frequency Control Symposium and IEEE International Symposium on Applications of Ferroelectrics, IFCS-ISAF 2020
CountryUnited States
CityVirtual, Keystone
Period7/19/207/23/20

Keywords

  • lithium niobate
  • MEMS
  • oscillator
  • overtone

ASJC Scopus subject areas

  • Signal Processing
  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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