45 GHz TWT-recent advancements

Author

Dibb, D.R. ; Le Borgne, R.H.

Author_Institution

Hughes Electron Dynamics, Torrance, CA, USA

fYear

2000

fDate

2-4 May 2000

Abstract

Summary form only given, as follows. The latest advancements at Hughes Electron Dynamics regarding the development of 45 GHz traveling wave tubes (TWTs) are presented. The major topics are higher power operation, backward wave suppression, thermal management, and related design issues. TWT performance is shown. These TWTs are designed to produce in excess of 120 watts of CW RF power across the frequency band of 43.5 to 45.5 GHz. The basic design incorporates a BeO supported helix with low loss coating, heat shrunk into a conventional pole piece barrel, and focused with PPM magnets. The electron gun operates at 13.5 kV, with 100 mA of beam current. The gun has an isolated focus electrode and a positive anode. The collector is now a two-stage design. The package is conduction cooled.

Keywords

millimetre wave generation; millimetre wave tubes; travelling wave tubes; 120 W; 43.5 to 45.5 GHz; 45 GHz TWT; BeO; BeO supported helix; CW RF power; Hughes Electron Dynamics; backward wave suppression; collector; conduction cooled device; design; electron gun; low loss coating; operating power; performance; thermal management; traveling wave tubes; Coatings; Electrodes; Electron beams; Electron tubes; Energy management; Magnets; Packaging; Radio frequency; Thermal management;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2000. Abstracts. International

Conference_Location

Monterey, CA, USA

Print_ISBN

0-7803-5987-9

Type

conf

DOI

10.1109/OVE:EC.2000.847400

Filename

847400