Large Phased-Array Antenna Multi-Beam Beamformers

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: W31P4Q-04-C-R149
Agency Tracking Number: 02SB2-0340
Amount: $1,300,000.00
Phase: Phase II
Program: SBIR
Awards Year: 2004
Solicitation Year: 2002
Solicitation Topic Code: SB022-047
Solicitation Number: 2002.2
Small Business Information
1291 E hillsdale Blvd, Foster City, CA, 94404
DUNS: 119301831
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 James Coward
 Chief Engineer
 (415) 334-7171
 jim@saraswati-associates.com
Business Contact
 Michael Rowan
Title: President
Phone: (415) 334-7171
Email: michael@saraswati-associates.com
Research Institution
N/A
Abstract
DARPA has identified the need for very large mobile phased array antennas. The need includes theater area ground based systems, airborne systems, and space based systems. The antennas will range from 100,000 elements to greater than 1,000,000 elements. High performance beamforming networks are required. The antenna systems will require wide instantaneous bandwidth necessitating that the beamformers efficiently implement true time delay processing. Saraswati has developed a optical beamforming network concept called Corona that is very size, weight, and cost effective in implementing high degrees of time delay. The heart of the beamformer is a 3-D MEMs photonic cross connect switch (PXC). Saraswati is partnering with Calient, the leader in MEMs PXCs. The Calient PXC meets the demanding environmental and lifetime requirements of the telecom market making it an excellent candidate for military applications. The chief objectives for this Phase II project are to: (a) demonstrate the innovative techniques of the Corona beamformer, and (b) develop a test bed to validate the performance models, and (c) develop a brassboard version of the custom receive MEMs PXC and optical time delay units, and (d) identify sources for each component that are qualifiable to the military environment.

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

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