Title :
Packaged Tunable L-Band Maser System
Author :
Arams, F.R. ; Okwit, S.
Author_Institution :
Airborne Instruments lab., Cutler-Hammer, Inc., Melville, L.I., N.Y.
fDate :
5/1/1960 12:00:00 AM
Abstract :
A low-noise tunable L-band maser system is described. The maser uses a pink ruby crystal oriented at 90° and is tunable from 850 to 2000 mc. The voltage-gain bandwidth product is as high as 37.5 mc at a liquid helium bath temperature of 1.5°K. An L-band circulator has been developed for use with the maser. It has an insertion loss of 0.3 db, operates over a 200-mc frequency range at L-band, and determines the usable tuning range of the circulator-maser system. The maser and circulator have been packaged into an operational unit that includes all auxiliary components, and has a system noise factor of 0.5 db (35°K). Electrical and mechanical features of the system are described and performance data are given.
Keywords :
Bandwidth; Frequency; Helium; Insertion loss; L-band; Masers; Packaging; Temperature; Tuning; Voltage;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1960.287623