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Active RF Circulators

Award Information

Agency:
Department of Defense
Branch:
Defense Advanced Research Projects Agency
Award ID:
74322
Program Year/Program:
2005 / SBIR
Agency Tracking Number:
05SB2-0273
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Applied Radar, Inc.
315 Commerce Park Road North Kingstown, RI 02852-
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2005
Title: Active RF Circulators
Agency / Branch: DOD / DARPA
Contract: W31P4Q-06-C-0076
Award Amount: $98,986.00
 

Abstract:

Applied Radar Inc. proposes the development of active MMIC-based circulators in order to achieve high isolation between transmit and receive paths for simultaneous transmit and receive (STAR) phased-array radar system architectures. This technology will enable increased persistence in intelligence, surveillance and reconnaissance (ISR) systems and allow multiple simultaneous radar modes including SAR, GMTI and AMTI. The different pulse widths required by these various radar modes often precludes simultaneous multi-mode radar operation. Previous work in active MMIC circulators in the early 1990's demonstrated the concept of active circulator, but did not achieve the required performance. Recent advances in chip-level RF modeling, advances in device processes and new materials such as SiGe, GaN, and SiC show promise of achieving an active circulator with up to 40 dB of T/R isolation with less than 0.5 dB of loss, while handling 1 Watt or more of CW power. There is also a growing trend towards the integration of multiple RF components in a single chip. The development of a high-performance MMIC-based circulator will enable system-on-a-chip architectures, enabling increased phased-array functionality, while reducing size and cost.

Principal Investigator:

William H. Weedon
President/CEO
4012950062
whw@appliedradar.com

Business Contact:

William H. Weedon
President/CEO
4012950062
whw@appliedradar.com
Small Business Information at Submission:

APPLIED RADAR, INC.
210 Airport Street, Quonset Point North Kingstown, RI 02852

EIN/Tax ID: 043438479
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No