Accession Number : AD0612028

Title :   EXPERIMENTAL INVESTIGATIONS OF PUMPLESS TRANSVERSE-WAVE AMPLIFIERS,

Corporate Author : NORWEGIAN DEFENCE RESEARCH ESTABLISHMENT KJELLER

Personal Author(s) : Nordbotten,Agne ; Thon,William

Report Date : 20 NOV 1964

Pagination or Media Count : 22

Abstract : The unexpected gain of the drift-tube amplifier has been reproduced in new experiments. Three tubes demonstrated the correlation between net gain and sidewise gun displacement. No correlation existed between net gain and drift-tube diameter, which is contrary to the beam image pumping hypothesis. The net gain was in excess of 20 db, but the efficiency was poor. A tentative explanation of the gain mechanism is based upon the proposition that transverse waves were excited in the injection process, and that their rotational power was transferred to the beam wave excited by the RF signal. (Author)

Descriptors :   (*MICROWAVE AMPLIFIERS, GAIN), ELECTRON BEAMS, ELECTRON GUNS, ELECTRON OPTICS, DIRECT CURRENT, MAGNETIC FIELDS, EXCITATION, RADIOFREQUENCY PULSES, ELECTRON TUBES

Distribution Statement : APPROVED FOR PUBLIC RELEASE