Microfabricated, 94 GHz, 25 W, Helical Traveling Wave Tube

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX12CA45C
Agency Tracking Number: 104440
Amount: $899,555.00
Phase: Phase II
Program: SBIR
Awards Year: 2012
Solicitation Year: 2010
Solicitation Topic Code: S1.02
Solicitation Number: N/A
Small Business Information
Teraphysics Corporation
110 Alpha Park, Cleveland, OH, 44143-2215
DUNS: 623981375
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Carol Kory
 Principal Investigator
 (440) 554-3417
 ckory@teraphysics.com
Business Contact
 Carole Ream
Title: Business Official
Phone: (440) 573-0008
Email: ream@teraphysics.com
Research Institution
 Stub
Abstract
Teraphysics Corporation completed the Phase I objectives for the electrical design of a 94 GHz, 26 W TWT with 53% overall efficiency, including the helical circuit with efficiency enhancing taper, input/output couplers, electron gun, magnetic circuit and multistage depressed collector. The device includes a novel, microfabricated, helical circuit with electron beam propagating above the helix rather than through the middle. In addition to completing all of the proposed Phase I objectives, we designed vacuum windows, made significant progress on the mechanical design, fabricated the electron gun electrodes and circuit block, and conducted machining trials, and brazing experiments. The successful Phase I results at 94 GHz along with Teraphysics' proven results at 95 and 650 GHz warrant further development of the 94 GHz TWT in a Phase II program. If awarded, we will apply our relevant experience and the Phase I results to fabricate, assemble, and test a 94 GHz TWT. The advantages of implementing high efficiency TWT amplifiers into NASA spacecraft compared to the current state of the art include lower system power requirements, reduced payload volume and reduced thermal management challenges.

* information listed above is at the time of submission.

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