Design of Wideband, Low Profile Quasi-Rectangular Planar Surface Wave Launcher Fed by CPW Slot for 5G Applications

Planar surface wave excitation provides two-dimensional wireless communication when compared to traditional wired and space communication systems. In this paper, a novel design of wide-band, low-profile quasi-rectangular aperture with a compact CPW surface wave launcher is developed. The proposed design provides a slotted Co-planar wave guide fed by 50 Ω coaxial cable through quasi-rectangular wave guide to excite a surface wave on high reactive surface impedance. When compared to surface wave launchers approached, the proposed design has the ability to excite high-efficiency surface wave travel along a reactive platform. The surface wave launcher is designed for millimeter-wave and 5G communication systems with a frequency band between 22 GHz to 30 GHz. It has a wide band width of 22 GHz and 30 GHz and low return loss of-10 dB.