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Dual Polarization Multi-Frequency Antenna Array

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX10RA15C
Agency Tracking Number: 074641
Amount: $599,996.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: S1.02
Solicitation Number: N/A
Solicitation Year: 2007
Award Year: 2010
Award Start Date (Proposal Award Date): 2009-10-29
Award End Date (Contract End Date): 2011-06-28
Small Business Information
2790 Indian Ripple Road
Dayton, OH 45440-3639
United States
DUNS: 603299207
HUBZone Owned: No
Woman Owned: Yes
Socially and Economically Disadvantaged: No
Principal Investigator
 John Little
 Principal Investigator
 (937) 320-5999
Business Contact
 Jerry Capozzi
Title: Business Official
Phone: (937) 320-5999
Research Institution

NASA employs various passive microwave and millimeter-wave instruments, such as spectral radiometers, for a wide range of remote sensing applications from measurements of the Earth's surface and atmosphere to cosmic background emission. These instruments such as the HIRAD (Hurricane Intensity Radiometer), SFMR (Stepped Frequency Microwave Radiometer), and LRR (Lightweight Rainfall Radiometer), provide unique data accumulation capabilities for observing sea surface wind, temperature, and rainfall and significantly enhance the understanding and predictability of hurricane intensity. These microwave instruments require extremely efficient wideband or multiband antennas. For the Phase I SBIR program Spectra Research, Inc. teamed with Scientists from the Georgia Tech Research Institute (GTRI) to apply new technological antenna advances and new antenna design tools toward solving the challenge of designing small, multi-function antennas that reduce the space, weight, and drag demand on the platform.

The results of the analysis and numerical design in the Phase I program show strong potential for an antenna array that will satisfy all design requirements of a high efficiency replacement for the Hurricane Intensity Radiometer (HIRAD) array. Multiple fragmented aperture arrays were employed in a thin antenna element to achieve exceptional gain (within 0.2 dB of the aperture limited gain) over the entire band from 4-7 GHz with a superb VSWR of < 1.5.

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

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