Figure 8
From: High performance antenna-on-chip inspired by SIW and metasurface technologies for THz band operation

(a) Layout of the SIW-MTS inspired AoC with MTS short-circuited feedline, (b) fabricated GaAs prototype, (c) illustration showing positions of the metallic post wall around the wrench-shaped radiators and the ground-plane slots, and (d) cross-sectional view of the antenna’s five stacked layers.