Low-profile, Wideband Antennas for the Joint Tactical Radio System (JTRS)

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-08-M-1338
Agency Tracking Number: F073-066-0140
Amount: $99,996.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2007
Solicitation Topic Code: AF073-066
Solicitation Number: 2007.3
Small Business Information
2790 Indian Ripple Road, Russ Research Center, Dayton, OH, 45440
DUNS: 603299207
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Daniel Reuster, Ph.D
 Director of Engineering
 (937) 320-5999
Business Contact
 Jerry Capozzi
Title: President / COO
Phone: (937) 320-5999
Email: capozzij@spectra-research.com
Research Institution
The purpose of the proposed program is to design, fabricate, and demonstrate a prototype wideband antenna that is operational over selected portions of the service bands (2-2000 MHz) required by the Joint Tactical Radio System (JTRS). In addition, the designs will address the following technical objectives: (1) minimize the voltage-standing-wave ratio (VSWR) with a target VSWR of 2.0, (2) maximize the radiation efficiency, (3) demonstrate an omni-directional radiation pattern in the azimuth plane, and (4) exhibit an elevation pattern that is equivalent to that of a quarter-wavelength monopole for line of sight waveforms. In addition to the above criteria, the antenna will be low profile for improved aerodynamics. In particular, aircraft platforms typically mount antennas a distance of one-quarter wavelength above the ground plane to provide maximum broadside gain by constructively adding the primary and reflected antenna signals. If the distance is less than one-quarter wavelength, the primary and reflected signals will partially or completely cancel each other, thus limiting the bandwidth of the antenna. This effort will investigate and demonstrate novel approaches to overcoming the bandwidth limitations associated with wideband, low-profile antennas including, but not limited to, the use of magnetically conducting ground planes.

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

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