Testing of a 0.850 THz vacuum electronic power amplifier

Author

Tucek, Jack C. ; Basten, Mark A. ; Gallagher, David A. ; Kreischer, Kenneth E.

Author_Institution

Electron. Syst., Northrop Grumman Corp., Rolling Meadows, IL, USA

fYear

2013

fDate

21-23 May 2013

Firstpage

1

Lastpage

2

Abstract

A 0.850 THz vacuum electronic power amplifier capable of >50 mIV output power is being tested at Northrop Grumman Electronic Systems. The compact power amplifier is based on a DRIE-fabricated folded waveguide slow-wave circuit, together with a high current density thermionic cathode, a high field permanent magnet solenoid, and a single-stage depressed collector for overall device efficiency. The new 0.850 THz power amplifier design is based on a 0.670 THz source that achieved over 100 mIV of output power with 21.5 dB of saturated gain, 15 GHz of operational bandwidth, a collector efficiency of 93% and an overall device efficiency of 0.44%.

Keywords

power amplifiers; DRIE fabricated folded waveguide slow wave circuit; Northrop Grumman electronic system; compact power amplifier; device efficiency; high current density thermionic cathode; high field permanent magnet solenoid; vacuum electronic power amplifier design; Bandwidth; Gain; Permanent magnets; Power amplifiers; Power generation; Solenoids; Testing; Terahertz; high-resolution imaging; submillimeter wave; vacuum electronics;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference (IVEC), 2013 IEEE 14th International

Conference_Location

Paris

Print_ISBN

978-1-4673-5976-4

Type

conf

DOI

10.1109/IVEC.2013.6571144

Filename

6571144