Abstract

This paper presents the plane wave excitation of the optical leaky waveguide antenna (OLWA) by the taper array and offset parabolic reflector to obtain high antenna gain. The taper array is composed of 12 slow tapers, and obtain high aperture efficiency. The parabolic reflector enables small size as compared with the taper array. We compare the performance of these excitation methods for the wide grating waveguide (GWG) in the simulation.

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