Accession Number : AD0748241

Title :   Advanced Concepts of Microwave Generation and Control in Solids.

Descriptive Note : Technical rept. 1 Jan-31 Mar 72,

Corporate Author : CORNELL UNIV ITHACA N Y SCHOOL OF ELECTRICAL ENGINEERING

Personal Author(s) : Dalman,G. C. ; Eastman,L. F. ; Lee,C. A. ; Frey,J.

Report Date : JUN 1972

Pagination or Media Count : 165

Abstract : The report deals with the progress made during the sixth quarterly period of a solid state microwave oscillator and amplifier research and development program. Included are the results of studies of transferred electron and avalanche diodes and solid state materials. Discussed first are LSA diodes and circuits, Gunn effect amplifiers and oscillators, a PCM Gunn oscillator, and GaAs materials studies. Next discussed are IMPATT and TRAPATT diode research results. A discussion on the Relaxing Avalanche Mode and its relation to other avalanche diode modes is also presented. Also reported are studies of Baritt diodes for high frequency CW operation, and for low frequency pulsed operation. The report concludes with a discussion of the progress made on ion implantation, on vacuum epitaxial growth in silicon and on ionization rates in GaAs. (Author)

Descriptors :   (*MICROWAVE OSCILLATORS, *SEMICONDUCTOR DIODES), MICROWAVE AMPLIFIERS, HARMONIC GENERATORS, AVALANCHE DIODES, SILICON, ION BOMBARDMENT, EPITAXIAL GROWTH, GALLIUM ARSENIDES, IONIZATION, TRANSISTORS, DOPPLER RADAR

Subject Categories : Electrical and Electronic Equipment
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE