Novel Wire-Grid Nano-Antenna Array with Circularly Polarized Radiation for Optical Communication Systems

A new circularly polarized wire-grid nano-antenna array designed for optical telecommunication applications is proposed in this paper. The array consists of two groups of radiators, which are orthogonal to each other. Each group consists of six aligned radiators connected via nonradiating connectors. A 90° phase shift is achieved by inserting a gap between the feeding coupling rods and the inner radiators of one of the two antenna groups. The antenna is characterized by its high directivity (10.8 dBi) and a wide axial ratio bandwidth, which covers the range from 188.2 to 197.8 THz. The radiation efficiency of the antenna is 82.75% at 193.55 THz with very small variations along its operating bandwidth. Such good radiation characteristics are very attractive for optical communication applications.

Publication year:2017

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BOF-publication weight:3

CSS-citation score:1

Authors:International

Authors from:Higher Education