Title :
A millimeter-wave diode-MMIC chipset for local oscillator generation in the ALMA telescope
Author :
Morgan, Matthew ; Bryerton, Eric ; Cesarano, Patrick ; Boyd, Tod ; Thacker, Dorsey ; Saini, Kamaljeet ; Weinreb, Sander
Author_Institution :
National Radio Astron. Obs., Charlottesville, VA, USA
Abstract :
A set of MMIC frequency multipliers and balanced mixers have been designed for the local oscillator system of the Atacama large millimeter array (ALMA). These millimeter-wave elements form a critical link in the active multiplier chains between the relatively low frequency microwave oscillators and the very high frequency submillimeter-wave, cooled multipliers of the LO subsystem. A complete chipset for four frequency bands is described, along with preliminary results on prototypes for two additional bands.
Keywords :
MMIC frequency convertors; MMIC mixers; frequency multipliers; microwave oscillators; millimetre wave integrated circuits; millimetre wave mixers; millimetre wave oscillators; submillimetre wave circuits; telescopes; ALMA telescope; Atacama large millimeter array; LO subsystem; MMIC balanced mixers; MMIC frequency multipliers; local oscillator generation; microwave oscillators; millimeter-wave diode-MMIC chipset; millimeter-wave frequency converters; millimeter-wave mixers; phase-locked loops; radio astronomy; submillimeter-wave cooled multipliers; Frequency; Local oscillators; MMICs; Microwave oscillators; Millimeter wave technology; Phase locked loops; Radio astronomy; Schottky diodes; Submillimeter wave technology; Telescopes;
Conference_Titel :
Microwave Symposium Digest, 2005 IEEE MTT-S International
Print_ISBN :
0-7803-8845-3
DOI :
10.1109/MWSYM.2005.1517004
