Accession Number:

ADA608498

Title:

Metamaterial Cathodes in Multi-Cavity Magnetrons

Descriptive Note:

Conference paper

Corporate Author:

AIR FORCE RESEARCH LAB KIRTLAND AFB NM DIRECTED ENERGY DIR/HIGH-POWER MICROWAVE DIVISION

Report Date:

2011-06-01

Pagination or Media Count:

7.0

Abstract:

The paper presents results of computer experiments performed for research to enhance operational parameters of multicavity magnetrons through using the metal-thin-wire MTW and the metal-split-ring MSR metamaterial structures as a cold non-thermionic cathode. It is demonstrated by particle-in-cell PIC simulations of a generic 10-vane non-relativistic ultra-high frequency UHF magnetron that the output microwave power and the start-up time of this magnetron are improved by replacing either a solid or a transparent cathode by a bulk MTW metamaterial structure formed by an array of individual wires directed parallel to the axis of the magnetron rodded cathode.

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE