
Proceedings Paper
Microfabrication and cold testing of copper circuits for a 50-watt 220-GHz traveling wave tubeFormat | Member Price | Non-Member Price |
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Paper Abstract
We present the microfabrication and cold test measurement results of serpentine waveguide amplifier circuits at 220
GHz. The circuits were fabricated using a novel embedded polymer monofilament technique combined with Ultraviolet-
LIGA to simultaneously create both the beam tunnel and interaction circuits. We find remarkable characteristic matches
between the measurements of the best circuits, illustrating that the process developed is able to create repeatable, highly
precise circuits with high yield. It was found that slight beam tunnel misalignment can cause very strong stopbands to
appear in the operating band due to bi- or quasi-periodicity. The NRL code TESLA-SW/FW has been used to rapidly
simulate the as-built structure under a variety of conditions to accurately predict the performance with an electron beam.
The tolerances needed on beam tunnel alignment are studied, with implications extending to the THz range.
Paper Details
Date Published: 27 March 2013
PDF: 9 pages
Proc. SPIE 8624, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VI, 862406 (27 March 2013); doi: 10.1117/12.2012074
Published in SPIE Proceedings Vol. 8624:
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VI
Laurence P. Sadwick; Créidhe M. O'Sullivan, Editor(s)
PDF: 9 pages
Proc. SPIE 8624, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VI, 862406 (27 March 2013); doi: 10.1117/12.2012074
Show Author Affiliations
Colin D. Joye, U.S. Naval Research Lab. (United States)
Alan M. Cook, U.S. Naval Research Lab. (United States)
Jeffrey P. Calame, U.S. Naval Research Lab. (United States)
David K. Abe, U.S. Naval Research Lab. (United States)
Alan M. Cook, U.S. Naval Research Lab. (United States)
Jeffrey P. Calame, U.S. Naval Research Lab. (United States)
David K. Abe, U.S. Naval Research Lab. (United States)
Alexander N. Vlasov, U.S. Naval Research Lab. (United States)
Igor A. Chernyavskiy, U.S. Naval Research Lab. (United States)
Khanh T. Nguyen, Beam-Wave Research, Inc. (United States)
Edward L. Wright, Beam-Wave Research, Inc. (United States)
Igor A. Chernyavskiy, U.S. Naval Research Lab. (United States)
Khanh T. Nguyen, Beam-Wave Research, Inc. (United States)
Edward L. Wright, Beam-Wave Research, Inc. (United States)
Published in SPIE Proceedings Vol. 8624:
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VI
Laurence P. Sadwick; Créidhe M. O'Sullivan, Editor(s)
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