Open AccessBroadband circularly polarised dielectric resonator antenna fed by wideband switched line coupler
Author(s) -
Han RongCang,
Zhong ShunShi,
Liu Jing
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2014.0809
Subject(s) - wideband , dielectric resonator antenna , bandwidth (computing) , optics , hybrid coupler , broadband , impedance matching , power dividers and directional couplers , axial ratio , materials science , resonator , physics , electrical impedance , acoustics , electrical engineering , engineering , telecommunications , circular polarization , microstrip
A dual‐feed rectangular dielectric resonator antenna with a wideband switched line coupler is proposed for generating broadband circular polarisation. The new wideband switched line coupler provides good impedance matching, equal power splitting and consistent 90° phase shifting over a wide bandwidth. The proposed antenna exhibits a 3 dB axial ratio bandwidth of 47.69% and an impedance matching bandwidth of 48.46% for a voltage standing wave ratio ≤2.