Gigahertz large-area-electronics RF switch and its application to reconfigurable antennas

Can Wu, Yue Ma, Suresh Venkatesh, Yoni Mehlman, Sigurd Wagner, James C. Sturm, Naveen Verma

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

1 Scopus citations

Abstract

Future IoT and 5G networks place significant new demands on antennas, where unguided EM waves are generated to access densely distributed sensor nodes. Reconfigurable antennas, capable of changing key parameters (directionality, frequency response, polarization), are starting to play a critical role, but are limited by the assembly of discrete RF components across the large antenna apertures typically desired. This work presents the design, and use in a reconfigurable antenna, of RF switches for 2.4 GHz-band wireless applications, based on large-area-electronics (LAE) zinc-oxide (ZnO) thin-film transistors (TFTs). ZnO TFTs can be fabricated monolithically on meter-scale and flexible substrates, as done in flat panel displays, but where their frequencies have been limited to 10's of MHz. RF switch performance is enabled for ZnO TFTs (fabricated at flex-compatible temp. <200°C) via self-aligned processing, thick-composite gate electrodes, breakdown-safe biasing, and resonant operation, leveraging high-Q LAE inductors. Reconfigurable antenna radiation patterns are demonstrated.

Original languageEnglish (US)
Title of host publication2020 IEEE International Electron Devices Meeting, IEDM 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages33.6.1-33.6.4
ISBN (Electronic)9781728188881
DOIs
StatePublished - Dec 12 2020
Event66th Annual IEEE International Electron Devices Meeting, IEDM 2020 - Virtual, San Francisco, United States
Duration: Dec 12 2020Dec 18 2020

Publication series

NameTechnical Digest - International Electron Devices Meeting, IEDM
Volume2020-December
ISSN (Print)0163-1918

Conference

Conference66th Annual IEEE International Electron Devices Meeting, IEDM 2020
Country/TerritoryUnited States
CityVirtual, San Francisco
Period12/12/2012/18/20

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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