An 85-116 GHz SIS receiver using inductively shunted edge junctions |
| |
| Authors: | Pan S.-K. Kerr A.R. Feldman M.J. Kleinsasser A.W. Stasiak J.W. Sandstrom R.L. Gallagher W.J. |
| |
| Affiliation: | Nat. Radio Astron. Obs., Charlottesville, VA; |
| |
| Abstract: | A superconductor-insulator-superconductor (SIS) mixer with a broadband integrated tuning structure is described. The mixer is tunable from 85 to 116 GHz and at 114 GHz has a noise temperature ⩽5.6 K double sideband (DSB) and unity DSB conversion gain. The mixer noise temperature is less than or comparable to the photon noise temperature hf/k≈5.5 K. Referred to the mixer input flange, the receiver noise temperature is ⩽9.5 K DSB when operated with an L -band HEMT (high-electron-mobility transistor) IF amplifier. Saturation measurements have been made using CW and broadband noise sources |
| |
| Keywords: | |
|
