Teo-shaped slotted-circular-patch antenna for circularly polarized radiation and RF energy harvesting

Loo B K Bernard, Nasimuddin*, A. Alphones

*Corresponding author for this work

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A novel circularly polarized (CP) Teo-shaped slotted-circular-patch antenna is proposed for RF energy harvesting. The antenna consists of a Teo-shaped slotted-circular-patch and an aperture-coupled feeding network. A Teo-shaped slot is embedded at the center of a circular-patch and its size and rotation are optimized for wide-beam CP radiation. The antenna prototype shows the 3-dB axial ratio (AR) bandwidth of 100 MHz (2.4-2.5 GHz) with 10-dB return loss bandwidth is 33% (1.89-2.66 GHz). The 3-dB AR beamwidth is around 100° with gain more than 6.0 dBic across the desired band.

Original languageEnglish
Pages (from-to)2752-2758
Number of pages7
JournalMicrowave and Optical Technology Letters
Volume57
Issue number12
DOIs
Publication statusPublished - 1 Dec 2015
Externally publishedYes

Keywords

  • circular polarization
  • circular-patch
  • circularly polarized microstrip antennas
  • RF energy harvesting
  • single-feed
  • slotted-microstrip

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