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Microwave/DC cyclotron wave converter having decreased magnetic field

Foreign code F130007490
File No. 3449
Posted date Jul 10, 2013
Country United States of America
Application number 90266801
Gazette No. 20020060527
Gazette No. 06507152
Date of filing Jul 12, 2001
Gazette Date May 23, 2002
Gazette Date Jan 14, 2003
Priority data
  • P2000-355358 (Nov 22, 2000) JP
Title Microwave/DC cyclotron wave converter having decreased magnetic field
Abstract

A microwave/DC converter employing fast cyclotron wave of the electron beam. Coupling section for feeding energy into the electron beam contains two microwave cavities 3, 7. The second cavity 7 has a group of 2n (where n=2, 3, . . . ) rod electrodes aligned symmetrically in parallel around the axis for giving the electron beam a rotational movement around the axis according to the microwave power P and receives the electron beam already slightly modulated by the first cavity 3, which is a resonant coupler with uniform transverse electric field and operates at 1/n-th of the second resonant cavity frequency (attached Figure shows the case of n=2). For the effective interaction in both cavities 3, 7 uniform static magnetic field corresponds to the cyclotron frequency equal to a half of external microwave power source frequency.

Asymmetrically reversed magnetic field is used between microwave cavities and collector to achieve the maximal efficiency of the microwave energy conversion into DC energy. Additional electrode 9 of the collector 11 creates a potential distribution providing converter with an effective protection against secondary emission influence.

  • Inventor, and Inventor/Applicant
  • MATSUMOTO HIROSHI
  • VANKE VLADIMIR A
  • SHINOHARA NAOKI
  • KANSAI TECHNOLOGY LICENSING ORGANIZATION CO., LTD
IPC(International Patent Classification)
U.S. Cl./(Sub)
  • 315/3.5
  • 315/5
  • 315/291
  • 315/500
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