Accession Number : AD0850038

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

Descriptive Note : Quarterly progress rept. no. 5, 1 Oct-31 Dec 68,

Corporate Author : CORNELL UNIV ITHACA NY SCHOOL OF ELECTRICAL ENGINEERING

Personal Author(s) : Dalman, G. C. ; Eastman, L. F.

Report Date : FEB 1969

Pagination or Media Count : 126

Abstract : This research program is concerned with new techniques for microwave signal generation. The emphasis of the investigation is on studies of active microwave effects in bulk semiconductors and on physical electronic phenomena. Specifically the study areas include the domain and Limited Space charge Accumulation (LSA) modes of Gunn effect, Impact Avalanche and Transit Time (IMPATT) diodes, microwave semiconductor materials and fundamentals, and a special study dealing with field emission of electrons from semiconductors into a vacuum. This research is being undertaken to further the understanding of the physical mechanisms and processes which are involved and to obtain information of use in the design of improved microwave sources. The work accomplished during the fifth quarterly period is discussed in this report. (Author

Descriptors :   *SEMICONDUCTOR DIODES), (*MICROWAVE OSCILLATORS, GALLIUM ARSENIDES, SEMICONDUCTORS, SPACE CHARGE, AVALANCHE DIODES, SILICON, EPITAXIAL GROWTH, FIELD EMISSION.

Subject Categories : Electrical and Electronic Equipment
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE