Planar Wideband Phased-Array Element For VHF RADAR

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8750-07-C-0141
Agency Tracking Number: F071-059-2514
Amount: $99,745.00
Phase: Phase I
Program: SBIR
Awards Year: 2007
Solicitation Year: 2007
Solicitation Topic Code: AF071-059
Solicitation Number: 2007.1
Small Business Information
4865 Sterling Drive, Suite 100, Boulder, CO, 80301
DUNS: 125961123
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Farzin Lalezari
 Principal Investigator
 (303) 449-5211
Business Contact
 Theresa Boone
Title: Chief Operating Officer
Phone: (303) 449-5211
Research Institution
Currently fielded VHF FOPEN SAR systems are tailored around large Unmanned Aerial Vehicles such as the Global Hawk platform. The current antenna design is an array of log-periodic monopoles that is permanently installed on the platform. While these antennas deliver the gain and suppress the backlobe at sufficient level, they are large and require permanent installation on the aircraft. There is a need to provide an alternate technology that does not require a permanent installation on a large aircraft. Installation on tactical sized UAVs such as Predator is desired for maximizing the tactical value and flexibility of the system. The FIRST RF solution achieves the critical performance characteristics from a low profile two element array. Many wideband array elements are 3 dimensional and require a minimum spacing of 0.2 wavelengths or more of depth. This is impractical for VHF frequencies on small platforms. The proposed array element technology is capable of meeting coverage and bandwidth requirements while maintaining conformality. In addition, traditional array solutions require a large number of elements to achieve the necessary front to back ratio. The FIRST RF beamforming technology requires a minimum of only 2 elements to achieve the front to back requirement.

* information listed above is at the time of submission.

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