Circularly polarized crossed dipole on an HIS for 2.4/5.2/5.8-GHz WLAN applications

Son Xuat Ta, Ikmo Park, Richard W. Ziolkowski

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

Abstract

A triband circularly polarized (CP) crossed-dipole antenna is introduced for 2.4/5.2/5.8-GHz wireless local area network (WLAN) applications. It employs a single feed and only two crossed trident-shaped dipoles as the primary radiating elements. To achieve a compact radiator size, two techniques are utilized, namely, insertion of a meander-line segment in the middle branch of the tridents and termination of all trident arms with arrowhead-shaped tips. The crossed trident-shaped dipoles are backed by a high impedance surface (HIS) to achieve a broadband characteristic and unidirectional radiation pattern at three bands. The measured impedance bandwidths, based on the -10-dB reflection coefficient values, are 2.21-2.62 GHz (410 MHz), 5.02-5.44 GHz (420 MHz), and 5.62-5.96 GHz (340 MHz), and the measured 3-dB axial-ratio bandwidths are 2.34-2.58 GHz (240 MHz), 5.14-5.38 GHz (240 MHz), and 5.72-5.88 GHz (160 MHz). The proposed antenna exhibits right-hand circular-polarized radiation with high gain.

Original languageEnglish (US)
Article number6657725
Pages (from-to)1464-1467
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Volume12
DOIs
StatePublished - Dec 3 2013

Keywords

  • Circular polarization
  • Crossed-dipole
  • High impedance surface reflector
  • Wireless local area network

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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