Compact Wideband Circularly-Polarised Slot Antenna for Ambient RF Energy Harvesting

Khatereh Nadali, Jakub Przepiorowski, Neeraj Kumar Maurya, Patrick McEvoy, Max J. Ammann

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A dual-port dual-sense wideband circularly- polarised (CP) printed slot antenna is proposed. The compact coplanar waveguide (CPW)-fed antenna is proposed for ambient energy harvesting applications. Two identical CPW feeds excite ±45° fan-shaped stubs in the elliptical slot, providing a wide bandwidth. By separating the ground plane and slot by two narrow strips, an isolation better than 19.4 dB between the ports is achieved. The measured impedance bandwidth is 850 MHz (2.08 GHz to 2.93 GHz) and the 3dB axial-ratio bandwidth is 870 MHz (2.04 GHz to 2.91 GHz).

Original languageEnglish
Title of host publication17th European Conference on Antennas and Propagation, EuCAP 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9788831299077
DOIs
Publication statusPublished - 2023
Event17th European Conference on Antennas and Propagation, EuCAP 2023 - Florence, Italy
Duration: 26 Mar 202331 Mar 2023

Publication series

Name17th European Conference on Antennas and Propagation, EuCAP 2023

Conference

Conference17th European Conference on Antennas and Propagation, EuCAP 2023
Country/TerritoryItaly
CityFlorence
Period26/03/2331/03/23

Keywords

  • Internet of Things (IoT)
  • ambient RF energy harvesting (RFEH)
  • circular polarisation
  • coplanar waveguide (CPW)-fed slot antenna
  • slot antenna
  • wideband antenna

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