Dual Polarization Multi-Frequency Antenna Array

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$599,996.00
Award Year:
2010
Program:
SBIR
Phase:
Phase II
Contract:
NNX10RA15C
Agency Tracking Number:
074641
Solicitation Year:
2007
Solicitation Topic Code:
S1.02
Solicitation Number:
n/a
Small Business Information
Spectra Research, Inc.
2790 Indian Ripple Road, Dayton, OH, 45440-3639
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
Y
Duns:
603299207
Principal Investigator:
John Little
Principal Investigator
(937) 320-5999
jlittle@spectra-research.com
Business Contact:
Jerry Capozzi
Business Official
(937) 320-5999
capozzij@spectra-research.com
Research Institution:
n/a
Abstract
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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