Enabling Channelizing Filters for High Impedance Nodes with Temperature Compensated Lamb-Wave Resonators

Steffen Link, Ruochen Lu, Shibin Zhang, Songbin Gong, Anjana Dissanayake, Steven M. Bowers

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

Abstract

This paper presents the development of a narrowband temperature compensated filter that can be embedded in a wake-up radio for improving its sensitivity and robustness. A method for addressing the complexity in achieving the narrow bandwidth and temperature stability simultaneously with aluminum nitride-based lamb-wave acoustic devices is outlined. Using this approach, a theoretical filter is designed with an insertion loss of 6.65 dB and a fractional bandwidth of 0.11% when connected to a port with an impedance of 3\ \mathrm{k}\Omega in parallel with 250 fF with a temperature coefficient of frequency of less than 2 ppm/°C first order TCF. The fabricated device shows an insertion loss of 11.5 dB and a fractional bandwidth of 0.13%.

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
Externally publishedYes
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
Country/TerritoryUnited States
CityVirtual, Keystone
Period7/19/207/23/20

Keywords

  • Acoustic devices
  • Piezoelectric devices
  • Resonator filters
  • Thermal management

ASJC Scopus subject areas

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

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