Novel TM0 surface wave launcher for integrated planar leaky wave antennas

In this paper a novel directive TM 0 surface wave launcher for integrated planar leaky wave antennas is presented. As proof of concept the launcher is designed for a frequency modulated continuous wave radar at 120 GHz. Simulations for launcher and antenna are presented, as well as verification measurements of a prototype. Being well matched over the whole WR6 band from 110 GHz to 170 GHz, the designed launcher covers a large bandwidth. The antenna prototype incorporating the new launcher scans over a range of 18° when fed from 110 GHz to 130 GHz.