High-Efficiency, High-Power Ka-Band Elliptic-Beam Traveling-Wave-Tube Amplifier for Long-Range Space RF Telecommunications

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX11CF23P
Agency Tracking Number: 104774
Amount: $99,993.00
Phase: Phase I
Program: SBIR
Awards Year: 2011
Solicitation Year: 2010
Solicitation Topic Code: O1.05
Solicitation Number: N/A
Small Business Information
142 North Rd. Suite F130, Sudbury, MA, 01776-1142
DUNS: 605667125
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Jing Zhou
 Principal Investigator
 (617) 308-6378
Business Contact
 Michael Lawrence
Title: Business Official
Phone: (978) 376-0143
Email: mlawrence@beampower.com
Research Institution
Space telecommunications require amplifiers that are efficient, high-power, wideband, small, lightweight, and highly reliable. Currently, helix traveling wave tube amplifiers (TWTA) are the technology of choice. Conventional helix TWTAs employ circular electron beams. Recently, lightweight circular-beam helix TWTAs have been demonstrated with power output in the range of several hundred watts and overall efficiency in the range of 40 to 60 percent. Despite these advances, there is substantial value in further improvement across all of these areas.Beam Power Technology (BPT) proposes a novel elliptic-beam TWTA which is highly efficient (75%) and has 500 W of CW power, reduced weight, lower voltage and an expected 15+ year lifetime. The average power operation is at a back-off of -6 dB from saturation. The linearity is -35 dBc. The Phase I objective is to determine the feasibility of an elliptic-beam helix TWTA which substantially exceeds the performance levels of conventional helix devices. In Phase II, BPT will complete the engineering design and experimental demonstration of a prototype targeting eventual deployment into satellite applications.

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

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government