Abstract
This paper presents the design of a wideband polygonal directional beam
antenna based on the ray inserting method. The wideband characteristic
of the directional beam antenna is achieved thanks to the use of
inhomogeneous dielectric material. Also, unlike most previous works,
the present design can be implemented with the isotropic and above
unity refractive index materials, consequently simplifying its
fabrication process. The finite difference time domain scheme is used
to evaluate the directional beam antenna.
© 2020 Optical Society of
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