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Multi-Beam Phased-Array Antenna Beamformers

Award Information

Agency:
Department of Defense
Branch:
Air Force
Award ID:
67427
Program Year/Program:
2004 / SBIR
Agency Tracking Number:
F041-024-2568
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
SA Photonics
130A Knowles Dr. Los Gatos, CA 95032-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2004
Title: Multi-Beam Phased-Array Antenna Beamformers
Agency / Branch: DOD / USAF
Contract: FA9453-04-M-0105
Award Amount: $99,764.00
 

Abstract:

Saraswati Associates is pleased to submit the following Phase I proposal. In this proposal we present our approach to develop technology for very large phased array antennas with many simultaneous beams and flexible wide bandwidth operation. Saraswati has developed the innovative CORONA beam forming concept under a DARPA Phase 1 SBIR contract). The CORONA system is very efficient for very large wide bandwidth phased array antennas because it scales with the square root of the number of elements whereas other concepts scale with either linearly with the number of elements or even the square of the number of elements. We have completed key risk reduction laboratory evaluations in a Phase 1A program and currently are in negotiations for the Phase II effort to develop the key elements of the basic beamformer. The basic CORONA beam forming architecture supports 4 simultaneous beams in X band. Also, in the basic CORONA system, the 4 beams have identical properties (eg. beamwidth, bandwidth, waveform, etc.). We propose to investigate enhancements to the CORONA architecture that allows for a high number of multiple beams (~16) with a flexible wide range of independent control of the beam properties: Independent simultaneous waveforms for GMTI, AMTI, and acquisition Independent control of bandwidth and center frequency Independent control of beamshape and scan/track parameters Multi-band operation Increasing the number of beams usually scales the beamformer linearly with the number of beams. Because CORONA scales as the square root it is well suited for multi-beam operation. We will utilize the analytic models and computer simulations that we have developed to design a flexible Multi-Beam CORONA (MB-CORONA) concept to have the above capabilities. The models include: Beam properties Bandiwdith and frequency response properties Main lobe beamwidth and gain Sidelobe performance Dynamic range Individual link performance Full scale antenna performance Phase control and time delay allocation budgets Allocation models down to individual components Size, weight, and power (SWAP) models Roll-ups for complete beamformer SWAP performance

Principal Investigator:

James Coward
Chief Engineer
5032888070
jim@saraswati-associates.com

Business Contact:

Michael Rowan
President
4153347171
michael@saraswati-associates.com
Small Business Information at Submission:

SARASWATI ASSOC.
1291 E Hillsdale Blvd, Suite 305 Foster City, CA 94404

EIN/Tax ID: 611427995
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No