Title :
Low-noise 6-8 GHz receiver
Author :
Pandian, Jagadheep D. ; Baker, Lynn ; Cortes, German ; Goldsmith, Paul F. ; Deshpande, Avinash A. ; Ganesan, Rajagopalan ; Hagen, Jon ; Locke, Lisa ; Wadefalk, Niklas ; Weinreb, Sander
Author_Institution :
Cornell Univ., Ithaca, NY
Abstract :
The combination of the traveling wave OMT device and the ultra-low-noise MMIC amplifiers has allowed us to develop a broadband 6-8 GHz receiver with a noise temperature of around 10 K. The combination of receiver noise and the additional noise contributions by the telescope optics gives an overall receiver temperature of around 28 K and 34 K in the two polarizations. The large collecting area of the telescope gives rise to a system equivalent flux density of around 4.5 Jy at 7 GHz
Keywords :
MMIC amplifiers; low noise amplifiers; microwave receivers; radiotelescopes; transducers; wideband amplifiers; 6 to 8 GHz; broadband receiver; flux density; low noise receivers; noise temperature; ortho-mode transducer; receiver noise; receiver temperature; telescope optics; traveling wave OMT device; ultra low noise MMIC amplifiers; Broadband amplifiers; MMICs; Optical amplifiers; Optical devices; Optical noise; Optical receivers; Semiconductor optical amplifiers; Stimulated emission; Telescopes; Temperature;
Journal_Title :
Microwave Magazine, IEEE
DOI :
10.1109/MW-M.2006.250316
