Title :
A 2mm Wave Generator, using a Spiralling Electron Beam
Author :
Beck, A.H. ; Caldwell-Nichols, C.J.
Author_Institution :
Professor of Electrical Engineering in Cambridge University Engineering Department
Abstract :
A 2mm wave generator that uses a helical electron beam spiralling around the axis of a nearly square waveguide cavity is described. The beam interacts with the TE11n mode in the cavity and the frequency of gyration around the axis is closely equal to half the signal frequency, thus halving the longitudinal magnetic field required by comparison with cyclotron devices of identical frequency. Power outputs in excess of 100mW have been achieved with low current, high voltage beams, with the promise of more power being available. A broadband microwave window developed for the tube is also described.
Keywords :
Acceleration; Cyclotrons; Electron beams; Frequency; Magnetic fields; Microwave devices; Milling machines; Optical waveguides; Oscillators; Voltage;
Conference_Titel :
Microwave Conference, 1974. 4th European
Conference_Location :
Montreux, Switzerland
DOI :
10.1109/EUMA.1974.332007
