Open AccessBroadband rotational symmetry circularly polarised antenna
Author(s) -
Xu Rui,
Li Jianying,
Wei Kun,
Yang Guangwei
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2015.4103
Subject(s) - optics , broadband , axial ratio , dipole antenna , circular polarization , physics , rotational symmetry , wideband , bandwidth (computing) , coaxial antenna , dipole , turnstile antenna , antenna (radio) , telecommunications , engineering , microstrip , quantum mechanics , mechanics
A new broadband circularly polarised printed antenna is proposed. This antenna is evolved from a bow‐tie dipole antenna, which have wideband impendence bandwidth (IBW). It uses a configuration of rotational symmetry dipole structure to be radiators. This rotational symmetry structure makes the surface currents to produce a circular polarisation wave. The simulation and measurement results are very consistent. The results show good performance of IBW is ∼140.6% (1.91–10.95 GHz) for S 11 <−10 dB, 3 dB axial‐ratio bandwidth is ∼96.6% (3.70–10.62 GHz).