Title :
Design considerations for submillimeter-wave reflex klystrons
Author :
Fletcher, John R. ; Thorpe, James R. ; Huq, Ejaz ; Mann, Christopher ; Steenson, D. Paul ; Chamberlain, Martyn
Author_Institution :
Sch. of Electron. & Electr. Eng., Univ. of Leeds, UK
Abstract :
The problems facing the development of klystrons for use at submillimeter wavelengths are reviewed. Analytical formulas for reentrant cavity resonance, starting conditions, output power, and oscillation buildup are presented. This paper describes methods of calculating cavity Q-factor, output coupling, focusing potentials, electron paths, and heating effects. The scaling of output power with frequency is derived. Examples of techniques that might be used to realize a working device are presented.
Keywords :
Q-factor; cavity resonators; klystrons; submillimetre wave tubes; cavity Q-factor; cavity resonance; electron paths; focusing potentials; heating effects; oscillation buildup; output coupling; submillimeter-wave reflex klystrons; Electrons; Frequency; Klystrons; Micromachining; Microwave photonics; Oscillators; Physics; Plasma devices; Power generation; Submillimeter wave technology; Electron optics; klystrons; micromachining; submillimeter-wave devices;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2004.835977
