Experimental microwave power extraction in the Multi-Frequency Recirculating Planar Magnetron

Author

Greening, Geoffrey B. ; Jordan, Nicholas M. ; Exelby, Steven C. ; Gilgenbach, Ronald M. ; Simon, David ; Lau, Y.Y.

Author_Institution

Dept. of Nucl. Eng. & Radiol. Sci., Univ. of Michigan, Ann Arbor, MI, USA

fYear

2015

fDate

27-29 April 2015

Firstpage

1

Lastpage

2

Abstract

The Multi-Frequency Recirculating Planar Magnetron (MFRPM) is a variant of the Recirculating Planar Magnetron (RPM), a crossed-field oscillator capable of producing high-power microwaves (HPM). The first multi-frequency RPM, termed the MFRPM-6+8, consists of a 6-cavity 1-GHz and 8-cavity 2-GHz set of planar cavity arrays coupled by cylindrical electron beam / RF recirculation bends. Recent experimental work involved installation of an axial microwave power extraction assembly. Experiments are currently underway using a -300 kV, 200-300 ns voltage pulse, a 0.1-0.3 T axial magnetic field, and a Mode-Control Cathode (MCC) with a velvet electron emitter.

Keywords

cavity resonators; electron beams; magnetrons; microwave generation; microwave oscillators; HPM; MCC; MFRPM; RF recirculation bends; axial microwave power extraction assembly; crossed-field oscillator; cylindrical electron beam; frequency 1 GHz; frequency 2 GHz; high-power microwaves; mode control cathode; multifrequency recirculating planar magnetron; planar cavity arrays coupled; time 200 ns to 300 ns; velvet electron emitter; voltage 300 kV; Cathodes; Cavity resonators; Electron beams; Green products; Microwave oscillators; Plasmas; coherent radiation; electron beams; high power microwaves; magnetrons;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference (IVEC), 2015 IEEE International

Conference_Location

Beijing

Print_ISBN

978-1-4799-7109-1

Type

conf

DOI

10.1109/IVEC.2015.7223787

Filename

7223787