A new W-band coplanar waveguide test fixture

Transition of 94‐GHZ coplanar waveguide to rectangular waveguide on flip‐chip bonding compatible substrate

“…There have been significant accomplishments in this area, but most of them were quite focused on frequency ranges of X and V‐band (8.2∼12.4 GHz and 50∼75 GHz) or optimized for low‐permittivity (ε r ) substrates [1–6]. In this article, we present a W‐band (75∼110 GHz) CPW to rectangular waveguide transition using the uniplanar finline taper optimized for sapphire substrate (ε r = 10).…”