Design of thin infrared quarter-wave and half-wave plates using antenna-array sheets

作者:He Yuchu; Eleftheriades George V*
来源:Optics Express, 2013, 21(21): 24468-24474.
DOI:10.1364/OE.21.024468

摘要

A thin quarter-wave plate and a half-wave plate are designed based on multiple antenna-array sheets (AAS). For transmission through cascaded antenna-array sheets, an equivalent transmission-line model is used. The interspacing dielectric is modeled as a transmission line with each AAS treated as a loaded shunt admittance. By utilizing this transmission-line model to treat the plates as a differential phase shifter between two orthogonal polarizations, a quarter-wave plate can be designed with two AAS and a half-wave plate can be designed with three AAS. Both wave plates can achieve high transmission with the desired 90 degrees and 180 degrees phase difference between two orthogonal polarizations.

  • 出版日期2013-10-21