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Proceedings Paper

Terahertz traveling wave tube amplifiers as high-power local oscillators for large heterodyne receiver arrays
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Paper Abstract

The size of existing and projected submillimeter heterodyne receiver arrays is rapidly increasing. As receiver arrays grow ever larger, the local oscillator power they require increases as well. We have developed Terahertz (THz) Traveling Wave Tube Amplifiers (TWTA) that promise to provide more than enough power in the 200 to 700 GHz frequency range to pump the largest arrays being planned for submillimeter telescopes. This technology combines revolutionary carbon nanotube cathodes and electron gun design with unique software modeling and micro-fabrication capabilities. We review key enabling technologies that make this breakthrough possible, present the design, realization, computer models and preliminary results of the THz TWT we have fabricated at 220 and 350 GHz

Paper Details

Date Published: 15 July 2010
PDF: 10 pages
Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 774115 (15 July 2010); doi: 10.1117/12.857904
Show Author Affiliations
Christian Y. Drouet d'Aubigny, TeraVision Inc. (United States)
Christopher K. Walker, Steward Observatory, The Univ. of Arizona (United States)
Abram G. Young, TeraVision Inc. (United States)
Paul Gensheimer, Steward Observatory, The Univ. of Arizona (United States)
Dathon R. Golish, TeraVision Inc. (United States)
Christopher E. Groppi, Arizona State Univ. (United States)


Published in SPIE Proceedings Vol. 7741:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V
Wayne S. Holland; Jonas Zmuidzinas, Editor(s)

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