Accession Number : AD0465104


Title :   STUDY OF MICROWAVE GENERATION UTILIZING DOUBLESTREAM INSTABILITIES IN ANISOTROPIC MEDIA.


Descriptive Note : Quarterly progress rept. no. 5, 1 Dec 641 Mar 65,


Corporate Author : MICROWAVE ELECTRONICS PALO ALTO CA


Personal Author(s) : Buchmiller, L D ; Kakihana, S


Report Date : 01 Mar 1965


Pagination or Media Count : 39


Abstract : Difficulties were encountered in obtaining a fast-response infrared detector for two-stream instabilities studies with pyrolytic graphite. A zinc-doped germanium detector appears to be the best detector available in the present state-ofthe-art and even with this detector the long wavelength cutoff is 40 microns, which falls short of the desired range of 5 to 75 microns. Experimental work was concerned principally with collective-phenomena instabilities in the solidstate plasma in n-type indium antimonide (InSb) at 77 K. Oscillations were measured from 33 to 12,000 Mc at power levels ranging from 0 down to -70 dbm. (Author)


Descriptors :   *OSCILLATION , *INFRARED DETECTORS , PYROLYTIC GRAPHITE , ANISOTROPY , STABILITY , IMPURITIES , ZINC , RADIOFREQUENCY POWER , MICROWAVE AMPLIFIERS , MAGNETIC FIELDS , ELECTRICAL RESISTANCE , VOLTAGE , MEASUREMENT , X BAND , WAVEGUIDES , INDIUM ALLOYS , ANTIMONY ALLOYS , ANTIMONY ALLOYS


Distribution Statement : APPROVED FOR PUBLIC RELEASE