A 490 GHz planar circuit balanced Nb-Al${}_2$O${}_3$-Nb quasiparticle mixer for radio astronomy: Application to quantitative local oscillator noise determination

M. P. Westig, M. Justen, K. Jacobs +4

This article presents a heterodyne experiment which uses a 380-520 GHz planar circuit balanced Nb-$\mathrm{A}{\mathrm{l}}_2{\mathrm{O}}_3$-Nb superconductor-insulator-superconductor (SIS) quasiparticle…