Wavelength-Switching Photonic Beamformer for Steering Multiple Simultaneous RF-Beams

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: W9113M-10-P-0032
Agency Tracking Number: B093-016-0438
Amount: $99,893.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: MDA09-016
Solicitation Number: 2009.3
Small Business Information
2363 Calle Del Mundo, Santa Clara, CA, 95054
DUNS: 877452664
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Behzad Moslehi
 Principal Investigator
 (408) 565-9004
Business Contact
 Behzad Moslehi
Title: CEO/CTO
Phone: (408) 565-9004
Email: bm@ifos.com
Research Institution
The proposed effort is aimed at developing a photonic beamformer implementing wavelength-switching for beamsteering of multiple simultaneous-independent RF beams in Receive mode. We propose a novel high-speed, cost-effective and programmable true-time delay (TTD) processor that is shared by all elements of a phased-array antenna (PAA). This technique is based on controlling the optical path of each carrier from a tunable laser operating in C-band. The key innovation is that the direction of incidence of RF beam is determined by the wavelength of the optical carrier through a set of fiber Bragg gratings array that are shared by all T/R elements of the antenna. This method provides high-resolution beamsteering that is immune to EMI. Furthermore, this approach will not require any optical switching technologies removing the need for electronic control of the fiber-optic TTD matrix. However, in order to meet the demand of simultaneous processing of 10 independent RF-beams for PAA with 40,000-400,000 T/R elements it is necessary to supplement this wavelength routing TTD technique with optical CDMA and/or optical dynamic spectrum access technology. The need to operate across wider bandwidth, increased resolution, and higher dynamic range drives the need for simultaneous-independent RF-beams for both Transmit/Receive modes regardless of PAA size.

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

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