Title :
220 GHz power amplifier development at Northrop Grumman
Author :
Basten, M.A. ; Tucek, J.C. ; Gallagher, D.A. ; Kreischer, K.E.
Author_Institution :
Electron. Syst., Northrop Grumman Corp., Rolling Meadows, IL, USA
Abstract :
Northrop Grumman Electronic Systems is developing compact, efficient amplifiers above 100 GHz as part of the DARPA High Frequency Integrated Vacuum Electronics (HiFIVE) program. Sub-components are being demonstrated for a compact 100 W amplifier operating at 220 GHz including a low attenuation folded waveguide (FWG) circuit and a high aspect ratio electron beam propagating through a FWG circuit at 95% transmission efficiency. The HiFIVE program relies upon a robust FWG circuit where a TE10 mode propagates through a serpentine, rectangular waveguide as the electron beam travels through a beam hole along the axis of the circuit. The FWG slows the RF phase velocity relative to the electron beam, enabling synchronous interaction and net gain.
Keywords :
microwave power amplifiers; microwave propagation; rectangular waveguides; DARPA; HiFIVE program; Northrop Grumman Electronic Systems; RF phase velocity; TE10 mode; electron beam propagation; folded waveguide circuit; frequency 100 GHz; frequency 220 GHz; high frequency integrated vacuum electronics; power 100 W; power amplifier; rectangular waveguide;
Conference_Titel :
Plasma Science (ICOPS), 2011 Abstracts IEEE International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-61284-330-8
Electronic_ISBN :
0730-9244
DOI :
10.1109/PLASMA.2011.5992896
