A 250 GHz photonic band gap gyrotron traveling wave amplifier

Author

Nanni, Emilio A. ; Shapiro, Michael A. ; Temkin, Richard J.

Author_Institution

Plasma Sci. & Fusion Center, Massachusetts Inst. of Technol. Cambridge, Cambridge, MA, USA

fYear

2012

fDate

24-26 April 2012

Firstpage

413

Lastpage

414

Abstract

A 250 GHz gyrotron traveling wave tube (gyro-TWT) for nanosecond pulse amplification with 1 kW peak power and gain exceeding 50 dB has been designed and is under construction. The amplifier uses a novel photonic band gap (PBG) interaction circuit that confines a TE03-like mode while providing lower-order mode suppression. Cold test results for the transmission line, input coupler, PBG waveguide and mode converter are presented. A triode electron gun designed for this amplifier has been constructed. Ongoing experimental installation and cold test results for the photonic structure will be discussed.

Keywords

convertors; gyrotrons; millimetre wave amplifiers; photonic band gap; transmission lines; travelling wave amplifiers; waveguide couplers; PBG interaction circuit; PBG waveguide; TE03-like mode; frequency 250 GHz; input coupler; lower-order mode suppression; mode converter; nanosecond pulse amplification; photonic band gap gyrotron travelling wave amplifier; photonic structure; transmission line; triode electron gun; Couplers; Electron beams; Lattices; Loss measurement; Photonic band gap; Structural beams; Transmission line measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference (IVEC), 2012 IEEE Thirteenth International

Conference_Location

Monterey, CA

Print_ISBN

978-1-4673-0188-6

Electronic_ISBN

978-1-4673-0187-9

Type

conf

DOI

10.1109/IVEC.2012.6262218

Filename

6262218