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
Personal Author(s):
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.
Descriptors:
Subject Categories:
- Electrical and Electronic Equipment