Accession Number : AD0600723

Title :   ELECTRON BEAM PARAMETRIC CONVERTER.

Corporate Author : ILLINOIS UNIV URBANA ELECTRICAL ENGINEERING RESEARCH LAB

Personal Author(s) : Wang,Carl

Report Date : JAN 1964

Pagination or Media Count : 61

Abstract : A method for the generation of coherent electromagnetic power at wavelengths from 1 to 2 millimeters through the excitation of a rectangular cavity by an electron beam is theoretically investigated by means of a field theory approach. Experimental studies at a wavelength of 7.55 millimeters which successfully demonstrate the method are described. A high energy (1 Mev) bunched electron beam, produced by a S-band rebatron is used. The eleventh harmonic frequency component of the beam is used as a variable reactive element. The beam, when deflected by a transverse field established by applied signal power, becomes an active element at a frequency equal to the sum of the beam harmonic frequency and the signal frequency. The power at this high frequency can be coupled out from the deflected beam by a fast-wave interaction between the periodic beam and a fast wave supported by a smooth structure. The experimental apparatus converts signal power at a frequency of 9.17 Gc to power at a frequency of 39.71 Gc with an output power of 2 to 3 milliwatts. The technique appears to be practical for the generation of wavelengths of 1 to 2 millimeters at power levels of 10 to 100 milliwatts using presently available components if the apparatus is skillfully designed. (Author)

Descriptors :   (*MICROWAVE EQUIPMENT, ENERGY CONVERSION), (*ELECTRIC POWER PRODUCTION, ELECTRON BEAMS), (*ELECTRON BEAMS, ELECTROMAGNETIC FIELDS), FREQUENCY, EXCITATION, ELECTROMAGNETIC RADIATION, FIELD THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE