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

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 bandwidt...

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Published in2023 17th European Conference on Antennas and Propagation (EuCAP) pp. 1 - 4
Main Authors Nadali, Khatereh, Przepiorowski, Jakub, Kumar Maurya, Neeraj, McEvoy, Patrick, Ammann, Max J.
Format Conference Proceeding
LanguageEnglish
Published European Association for Antennas and Propagation 26.03.2023
Subjects
ambient RF energy harvesting (RFEH)
Antenna measurements
Broadband antennas
circular polarisation
coplanar waveguide (CPW)-fed slot antenna
Frequency measurement
Impedance measurement
Internet of Things (IoT)
Radio frequency
Receiving antennas
slot antenna
Slot antennas
wideband antenna
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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).
AbstractList 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).
Author Przepiorowski, Jakub
Nadali, Khatereh
McEvoy, Patrick
Ammann, Max J.
Kumar Maurya, Neeraj
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  givenname: Jakub
  surname: Przepiorowski
  fullname: Przepiorowski, Jakub
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  surname: Kumar Maurya
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  givenname: Patrick
  surname: McEvoy
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  givenname: Max J.
  surname: Ammann
  fullname: Ammann, Max J.
  email: max.ammann@tudublin.ie
  organization: Technological University Dublin,Antenna and High Frequency Research Centre (AHFR), School of Electrical & Electronic Engineering,Dublin,Ireland
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Snippet A dual-port dual-sense wideband circularly- polarised (CP) printed slot antenna is proposed. The compact coplanar waveguide (CPW)-fed antenna is proposed for...
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SubjectTerms ambient RF energy harvesting (RFEH)
Antenna measurements
Broadband antennas
circular polarisation
coplanar waveguide (CPW)-fed slot antenna
Frequency measurement
Impedance measurement
Internet of Things (IoT)
Radio frequency
Receiving antennas
slot antenna
Slot antennas
wideband antenna
Title Compact Wideband Circularly-Polarised Slot Antenna for Ambient RF Energy Harvesting
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