An improved design and implementation of a broadband circularly polarized antenna

Chien Hsing Lee, Yu Han Chang

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

This communication presents an improved design and implementation of a broadband circularly polarized antenna that features a size reduction, good axial-ratio bandwidth and good return loss bandwidth. The circuit comprises one Schiffman phase shifter that is used to obtain a wideband phase difference of 90$\circ, and a pair of orthogonally positioned linearly polarized slot antennas with equal radiation strength that are used to accomplish a circular polarization by combining the horizontally and vertically polarized waves with a Wilkinson power divider. Measured results show that the 3 dB axial-ratio bandwidth of the proposed antenna can reach 81.5% (1.6-3.8 GHz), and the 10 dB return loss bandwidth is 100% (1.48-4.47 GHz).

Original languageEnglish
Article number6756953
Pages (from-to)3343-3348
Number of pages6
JournalIEEE Transactions on Antennas and Propagation
Volume62
Issue number6
DOIs
Publication statusPublished - 2014 Jun

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'An improved design and implementation of a broadband circularly polarized antenna'. Together they form a unique fingerprint.

Cite this