Title :
A wide-angle broadband waveplate through field transformation
Author :
Junming Zhao ; Yijun Feng ; Yang Hao
Author_Institution :
Sch. of Electron. Eng. & Comput. Sci., Queen Mary Univ. of London, London, UK
Abstract :
We present here a wide-angle broadband waveplate based on a field transformation (FT) method. By adjusting the thickness of such a waveplate, we obtain both half-wave and quarter-wave plates which achieve polarization conversions between TE and TM, LCP and RCP, linear and circular polarizations separately for both transmission and reflection cases. Such waveplates can be realized through sub-wavelength dielectric gratings based on effect media theory, whose performances have been verified through numeric and full-wave simulations with experimentally verification carried out in microwave regime.
Keywords :
diffraction gratings; light polarisation; optical filters; optical retarders; circular polarization; effect media theory; field transformation; half-wave plates; linear polarization; microwave regime; polarization conversions; quarter-wave plates; sub-wavelength dielectric gratings; wide-angle broadband waveplate; Broadband communication; Media; Optical retarders; Permittivity; Polarization; Reflection; Field Transformation; Waveplate; broadband; polarization manipulation; wide-angle;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon
