Progress on a 94 GHz omniguide traveling-wave tube gain experiment

Author

Shchegolkov, D.Y. ; Dalmas, D.A. ; Earley, L.M. ; Haynes, W.B. ; Renneke, R.M. ; Simakov, E.I.

Author_Institution

Los Alamos Nat. Lab., Los Alamos, NM, USA

fYear

2011

fDate

26-30 June 2011

Firstpage

1

Lastpage

1

Abstract

Compact, efficient, high-bandwidth and high-power mm-wave sources are essential for many applications in secure communications, environmental monitoring, imaging, spectroscopy for remote sensing in nonproliferation, and basic research such as radio astronomy. Commercial microwave tube amplifiers are available at frequencies up to only 100 GHz (W-band) and have to trade off maximum output power against bandwidth. A wide-band mm-wave traveling-wave tube (TWT) amplifier based on a slow-wave cylindrically-symmetric photonic band gap (PBG) structure, or an “omniguide” is being developed at Los Alamos National Laboratory. The omniguide represents a periodic system of concentric dielectric tubes. PBG TWT structures have great potential for very large bandwidth and linear dispersion.

Keywords

microwave amplifiers; microwave tubes; travelling wave tubes; Los Alamos National Laboratory; concentric dielectric tubes; environmental monitoring; frequency 100 GHz; frequency 94 GHz; high-power mm-wave sources; imaging; microwave tube amplifiers; radio astronomy; remote sensing; secure communications; slow-wave cylindrically-symmetric photonic band gap structure; spectroscopy; wide-band mm-wave traveling-wave tube amplifier;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science (ICOPS), 2011 Abstracts IEEE International Conference on

Conference_Location

Chicago, IL

ISSN

0730-9244

Print_ISBN

978-1-61284-330-8

Electronic_ISBN

0730-9244

Type

conf

DOI

10.1109/PLASMA.2011.5993330

Filename

5993330