Compact bidirectional polarization splitting antenna

Document Type

Journal Article

Faculty

Faculty of Computing, Health And Science

School

School of Engineering

RAS ID

15153

Comments

Lu, F., Li, G., Xiao, F. , & Xu, A. (2012). Compact bidirectional polarization splitting antenna. IEEE Photonics Journal, 4(5), 1744-1751. Available here

Abstract

A compact bidirectional polarization splitting antenna (BPSA) composed of a patterned metallic structure coated by a thin dielectric film is proposed and theoretically investigated. Using a polarization-selective array of grooves, the backside illuminated light transmitted through the central nanoslit is split and coupled into TM- and TE-polarized modes supported by the metal-dielectric-air (MDA) configuration. The operation principle of the structure is clarified and theoretically illustrated by utilizing the fully vectorial aperiodic Fourier modal method (a-FMM). Numerical simulations show that insertion losses (ILs) less than 4 dB, polarization extinction ratios (PERs) better than 18 dB, and crosstalk (CR) less than $-$ 18 dB are achieved for both polarizations in the wavelength range 1510-1570 nm. The structure will find potential applications in highly integrated polarization diversity systems and photonic integrated circuit.

DOI

10.1109/JPHOT.2012.2215020

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free_to_read

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