title: Design of thin infrared quarter-wave and half-wave plates using antenna-array sheets.
abstract: 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° and 180° phase difference between two orthogonal polarizations.
authors.forename: Yuchu
authors.initials: Y
authors.lastname: He
authors.forename: George V
authors.initials: GV
authors.lastname: Eleftheriades