Accession Number : AD0667564

Title :   CYCLOTRON WAVE AMPLIFICATION USING SELF GENERATED PUMP POWER.

Descriptive Note : Research rept.,

Corporate Author : CHALMERS UNIV OF TECHNOLOGY GOTEBORG (SWEDEN) RESEARCH LAB OF ELECTRONICS

Personal Author(s) : Jaderblom,Jan

Report Date : 15 DEC 1966

Pagination or Media Count : 24

Abstract : This report describes measurements on an amplifier system consisting of two cascaded Adler tubes with a traveling wave tube (TWT) to amplify the pump signal. The latter was produced by the signal itself in the quadrupole of one of the Adler tubes. By so doing the pump voltage was phase locked to the signal. Two cases were investigated. In one case the pump power was generated in the first Adler tube, amplified in the TWT and then used for pumping the second Adler tube. The dB gain of this system is a linear function of the input signal power. In the other case the pump power was taken from the second Adler tube, amplified in the TWT and then fed back to pump the first Adler tube. Now the dB gain becomes a linear function of the output power. A theoretically predicted hysteresis effect was experimentally verified. (Author)

Descriptors :   (*TRAVELING WAVE TUBES, CYCLOTRON WAVES), (*MICROWAVE AMPLIFIERS, TRAVELING WAVE TUBES), LOGARITHMIC AMPLIFIERS, PUMPING(ELECTRONICS), ATTENUATION, PHASE LOCKED SYSTEMS

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE