We have developed a novel planar integrated antenna-mixer structure. The device is constructed in parallel stripline (PSS), and consists of an endfire Vee antenna, R.F. matching filter, SIS junction array and I.F. output filter/matching network, sandwiched between a thick dielectric substrate and a similar dielectric superstrate. Expressions have been developed for the propagation constants and losses of PPS in finite thickness dielectric, and these have been confirmed by scaled modelling experiments.
"Scaled modelling of planar array SIS mixers", Proc. SPIE 1929, 17th International Conference on Infrared and Millimeter Waves, 19295L (14 December 1992); doi: 10.1117/12.2298318; https://doi.org/10.1117/12.2298318