NASA SBIR 2007 Solicitation


PROPOSAL NUMBER: 07-1 O1.04-8886
SUBTOPIC TITLE: Antenna Technology
PROPOSAL TITLE: Printable Nano-Field Effect Transistors Combined with Carbon Nanotube Based Printable Interconnect Wires for Large-area Deployable Active Phased-Array

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Omega Optics, Inc.
10435 Burnet Road, Suite 108
Austin, TX 78758 - 4450
(512) 996-8833

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Maggie Y. Chen
10435 Burnet Rd. Suite 108
Austin, TX 78758 - 4450
(512) 996-8833

Expected Technology Readiness Level (TRL) upon completion of contract: 3 to 5

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
Flexible electronic circuits can be easily integrated with large area (>10m aperture), inflatable antennas to provide distributed control and processing functions. Flexible electronic circuits can also perform dynamic antenna sub-arraying and gain pattern reconfiguration for active phased-array antenna (PAA) and thus significantly enhance the reliability of NASA's space radar systems. However, existing flexible electronics are based on organic semiconductor materials that have carrier mobility four orders of magnitude lower than conventional single crystal silicon. Such low carrier mobility limits the operating speed of flexible electronics to a few kilohertz and thus makes it unsuitable for multi-GHz RF antenna applications. The proposed research aims to develop a printable silicon nano-FET with high carrier mobility of over 400 cm2/V•s. Such high carrier mobility provides an unprecedented opportunity to achieve flexible electronics with high operating frequency of over 40GHz. We will also develop procedures for printing of conducting interconnect wires using carbon nanotubes, which is critical for printing semiconductors. Based on our past experience on printable silicon nano-FET and printable carbon nanotube wires, the high-speed flexible electronics are expected to be integrated with large-area, inflatable radar antennas and achieve smart antenna systems for high performance and reliable space operations.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The proposed printable silicon FET combined with printable carbon nanotube interconnect wires provide a promising approach to achieve high-speed flexible electronics that can be monolithically integrated on NASA's large aperture, deployable antennas. The integrated high-speed (> 40GHz) electronics offer enhanced control, signal processing and reconfiguration functionalities for numerous radar bands, such as L- band, X- band, S- band, Ku- band and Ka-band. The technology will provide advanced navigation and communication, including basic mission support and high bandwidth demand, to implement the vision of go back to moon by 2020.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The printable silicon nano-FET offers an enabling technology for large-area flexible electronics with high operating speed and built-in control capability. It offers an attractive technology for many high-speed, low-cost electronics applications, particularly those that require or may benefit from flexible polymeric substrates such as RF identification tags, smart cards, electronic paper, and large area flat panel displays.

NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.

Architectures and Networks
Large Antennas and Telescopes
Ultra-High Density/Low Power

Form Generated on 09-18-07 17:50