Characterization of a inverted-cupstron microwave source

J. Pehowich, S. P. Kuo

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A microwave inverted-cupstron tube radiating at cyclotron frequencies is designed and analyzed. This device utilizes the negative mass instability for the resonant interaction between an axis encircling electron layer and the modes of a cylindrical waveguide. The outer wall is a conducting circular waveguide and the inner wall has a slotted structure similar to the outer walls of the anode blocks of a magnetron. Similar to a noninverted cupstron tube the E layer configuration maximizes the finite Larmour radius effect for the harmonic cyclotron resonance interaction. The slotted inner boundary introduces a periodic fringe field for enhancing the harmonic resonant interaction. A parametric study of the operational characteristics of the device was performed for determining the optimum design parameters and the beam energy.

Original languageEnglish (US)
Title of host publication91 IEEE Int Conf Plasma Sci
PublisherPubl by IEEE
Number of pages1
ISBN (Print)0780301471
StatePublished - 1991
Event1991 IEEE International Conference on Plasma Science - Williamsburg, VA, USA
Duration: Jun 3 1991Jun 5 1991

Publication series

Name91 IEEE Int Conf Plasma Sci


Other1991 IEEE International Conference on Plasma Science
CityWilliamsburg, VA, USA

ASJC Scopus subject areas

  • General Engineering


Dive into the research topics of 'Characterization of a inverted-cupstron microwave source'. Together they form a unique fingerprint.

Cite this