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High Frequency MEMS-based TWTS using Novel Interaction Circuits and Beam Sources

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911NF-04-C-0112
Agency Tracking Number: A2-1302
Amount: $0.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 2004
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
20937 Comer Drive
Saratoga, CA 95070
United States
DUNS: 968627539
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Carol Kory
 Senior Research Engineer
 (440) 554-3417
Business Contact
 Purobi Phillips
Title: C.O.O.
Phone: (650) 595-2168
Research Institution
 University of Wisconsin
 John Bosske
1415 Engineering Drive
Madison, WI 53706
United States

 (608) 262-8548
 Nonprofit College or University

From consultations with the Army program manager, it was determined that the Army has a strong need for improved amplifiers in the W band. Accordingly, the proposed Phase II overall technical objective is to develop a 10 W, W-band prototype planar helix TWT. In Phase I, we addressed improving the repeatability, cost and yields of conventional Ka-band TWTs by introducing novel circuits, beam sources and collectors taking advantage of MEMS fabrication techniques. The results are promising, and further investigation is expected to lead to revolutionary advances in TWT technology. In particular, we found that the planar helix is a promising circuit for batch fabrication at Ka-band through THz frequencies. The circuit holds several other advantages including large impedance for high RF efficiency; thermal stability; and a geometry allowing the use of a sheet beam. Sheet beam operation results in reduced current density and lighter magnet weight for the same voltage and current as compared to a round beam. Alternatively, a sheet beam can provide increased current, lower voltage, and shorter TWT length for the same current density as a round beam.

* Information listed above is at the time of submission. *

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