Design of an Electrically Small, Circularly Polarized, Parasitic Array Antenna for an Active 433.92MHz RFID Handheld Reader

Jay J. Yu, Sungkyun Lim

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

An electrically small, two-element, parasitic array (Yagi) antenna is proposed for an active 433.92-MHz RFID handheld reader. The antenna is composed of a square-shaped driver and director. The circular polarization is achieved by pulling the driver and pushing the director at one side. The sense of the antenna can be changed easily by pushing the driver and pulling the director at the same side. The total volume of the antenna is 115 mm×115 mm×13.8 mm (0.166 λ × 0.166 λ × 0.02 λ ), and the electrical size is a kr of 0.75. The maximum measured realized gain is 3.5 dBic.

Original languageAmerican English
JournalIEEE Transaction on Antennas and Propagation
Volume60
DOIs
StatePublished - Mar 5 2012

Keywords

  • Antenna arrays
  • Radiofrequency identification

DC Disciplines

  • Electrical and Computer Engineering

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