Ultra-wideband TE0,1-mode dielectric window assisted with ring- based meta-surface

Abstract

A novel concentric ring-based meta-surface assisted dielectric window is considered in the present study for examining its broadband response. The tolerable return loss in the Ka-Q band is taken as 20 dB for calculation of the bandwidth. The proposed window supports a bandwidth of 20.30 GHz (54.06%) for the TE0,1 mode. While comparing with a plane disk window, the bandwidth is increased by 17.55 GHz and 46.55%. On the other hand, compared with previously designed meta-surface assisted dielectric windows with square cross-sectional pillars without and with cylindrical tips, the bandwidth is increased by 1.1 GHz and 190 MHz, respectively.

KEYWORDS:

• RF window
• dielectric window
• meta-surface assisted window
• millimetre-wave window

Disclosure statement

No potential conflict of interest was reported by the author(s).