Accession Number : AD0873537

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

Descriptive Note : Quarterly progress rept. no. 10, 1 Jan-31 Mar 70,

Corporate Author : CORNELL UNIV ITHACA NY SCHOOL OF ELECTRICAL ENGINEERING

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

Report Date : JUL 1970

Pagination or Media Count : 166

Abstract : The 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 the Gunn-effect, Impact Avalanche and Transit Time (IMPATT) and Trapped Plasma Avalanche Transit Time (TRAPATT) oscillators and amplifiers and microwave semiconductor materials properties. 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 tenth quarterly period is discussed in this report. (Author)

Descriptors :   *EPITAXIAL GROWTH), (*MICROWAVE OSCILLATORS, SEMICONDUCTOR DIODES), (*GALLIUM ARSENIDES, ION BOMBARDMENT, AVALANCHE DIODES, HARMONIC GENERATORS, X BAND, STABILITY.

Subject Categories : Electrical and Electronic Equipment
      Crystallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE