A broadband THz waveguide-to-suspended stripline loop-probe transition

We present a novel waveguide-to-suspended stripline loop-probe transition operating over the entire WR-1.0 waveguide band. The loop probe is designed for broadband response with simulated RL > 15 dB, and has an integrated DC return path, which can also be extended for biasing. The measured insertion loss for a back-to-back configuration is 1-2 dB in almost the entire frequency range of 750-1100 GHz.