Very simple 2.45/3.5/5.8 GHz triple-band circularly polarised printed monopole antenna with bandwidth enhancement

Viet Hoang, Hyun Chang Park

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

A very simple triple-band circularly polarised printed monopole antenna with bandwidth enhancement for 2.45/5.8 GHz wireless local area network (WLAN) and 3.5 GHz worldwide interoperability for microwave access (WiMAX) applications is presented. The circular polarisation characteristic at the WiMAX band was obtained by an inverted-U-shaped radiator rotated by 45° around the horizontal axis. To create the upper circular polarisationmode at the 5.8 GHzWLAN band, an I-shaped stripwas added on the right side of the radiator. Finally, by attaching an inverted-Lshaped strip at the end of the I-shaped strip, the lower circular polarisation characteristic at the 2.45 GHz WLAN band was achieved. The proposed antenna is excited by a simple 50 Omicrostrip feed line using a transformer for impedance matching. The measured -10 dB impedance bandwidth is 450 MHz (2.35-2.8 GHz) and 4.1 GHz (3.3-7.4 GHz) and the measured 3 dB axial-ratio bandwidth reaches 12% (2.35-2.65 GHz), 10% (3.3- 3.65 GHz) and 4.4% (5.6-5.85 GHz).

Original languageEnglish
Pages (from-to)1792-1793
Number of pages2
JournalElectronics Letters
Volume50
Issue number24
DOIs
StatePublished - 1 Nov 2014

Fingerprint

Dive into the research topics of 'Very simple 2.45/3.5/5.8 GHz triple-band circularly polarised printed monopole antenna with bandwidth enhancement'. Together they form a unique fingerprint.

Cite this