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

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$99,893.00
Award Year:
2010
Program:
SBIR
Phase:
Phase I
Contract:
W9113M-10-P-0032
Award Id:
96981
Agency Tracking Number:
B093-016-0438
Solicitation Year:
n/a
Solicitation Topic Code:
MDA 09-016
Solicitation Number:
n/a
Small Business Information
2363 Calle Del Mundo, Santa Clara, CA, 95054
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
877452664
Principal Investigator:
Behzad Moslehi
Principal Investigator
(408) 565-9004
bm@ifos.com
Business Contact:
Behzad Moslehi
CEO/CTO
(408) 565-9004
bm@ifos.com
Research Institution:
n/a
Abstract
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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