In 2006-2008, two set of 320-420GHz SIS heterodyne receiver for SMA band 5 are developed. The receiver noise temperature, the noise contribution, and the receiver optics beam pattern are measured. The first receiver module is installed into the receiver chamber of SMA Antenna #7 located at 4089 meter-high Mauna Kea, Hawaii in October and September 2006, and the second one is ready for shipping now.
SMA receiver optics layout for the 320-420GHz band.
Detail configuration of the 300-420GHz local oscillator module with manual tuners.
Measured results of the receiver DSB noise temperature at different LO frequencies..
Measured results of (a),(b) amplitude pattern contours and (c),(d) phase pattern contours of SMA Antenna-7 and 8 for the 690 GHz SIS receivers with Martin-Puplett diplexers. The amplitude contours are in 3-dB step and phase contours are in 45-degree step. The ripples on the contour come from the residue reflections along the Gaussian beam.
Reference of this work:
(latest modify: May 09, 2008)