Accession Number : AD0883604

Title :   Suppression in Active Devices-Circuits. Volume I.

Descriptive Note : Final technical rept. 1 Oct 67-31 Oct 70,

Corporate Author : CORNELL UNIV ITHACA NY SCHOOL OF ELECTRICAL ENGINEERING

Personal Author(s) : Ballantyne, Joe M. ; Baukus, J. ; Sweet, A.

Report Date : APR 1971

Pagination or Media Count : 71

Abstract : The report summarizes work done over a period of three years on a research program directed to the suppression of undesired emissions from active bulk-solid and epitaxial devices. Major emphasis was placed on the spurious emissions of Gunn devices. Both harmonic emission far from the fundamental and noise emission in the vicinity of the fundamental were studied. The technique of Fourier spectroscopy was newly applied to the study of harmonic emissions over the range 8 - 500 GHz. It was found that for Gunn devices operated in the hybrid and LSA modes harmonic power dropped rapidly with increasing frequency. The highest harmonic observed was the tenth (at 82 GHz) of a high-power pulsed LSA X-band device. (Author)

Descriptors :   (*SEMICONDUCTOR DEVICES, ELECTROMAGNETIC COMPATIBILITY), RADIOFREQUENCY INTERFERENCE, NOISE(RADIO), MICROWAVE OSCILLATORS, GALLIUM ARSENIDES, INDIUM ANTIMONIDES, INHIBITION, HARMONIC GENERATORS.

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE