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Communication Dans Un Congrès Année : 2020

Analytic Design of Dual-Band, Dual-Polarized LP-to-CP Polarization Converters

Résumé

A systematic procedure for the design of dual-band, dual-polarized linear-to-circular polarization converters is presented. This class of polarizers can convert linear polarization to orthogonal circular polarizations in two separate frequency bands. The polarization converter is composed of three electric admittance sheets. The frequency response of each sheet is determined using an analytic approach, without relying on any optimization. A representative example is proposed in the Ka-band for Satcom applications. The polarizer converts a 45 degrees linearly-polarized plane-wave to left-handed and right-handed circularly-polarized waves within the downlink and uplink of the Ka-band. Specifically, relative bandwidths of >19% and 6% are achieved within the downlink and uplink, respectively, for normal incidence. Stable responses are demonstrated in simulation under oblique incidence up to +/- 60 degrees in elevation.
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Dates et versions

hal-03003017 , version 1 (13-11-2020)

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Michele del Mastro, Mauro Ettorre, Anthony Grbic. Analytic Design of Dual-Band, Dual-Polarized LP-to-CP Polarization Converters. 14th European Conference on Antennas and Propagation (EuCAP), Mar 2020, Copenhagen, Denmark. ⟨10.23919/EuCAP48036.2020.9135304⟩. ⟨hal-03003017⟩
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