RF Power Scavenging for Wireless Sensors

Award Information
Agency:
Department of Defense
Amount:
$69,906.00
Program:
SBIR
Contract:
N65538-04-M-0153
Solitcitation Year:
2004
Solicitation Number:
2004.1
Branch:
Navy
Award Year:
2004
Phase:
Phase I
Agency Tracking Number:
N041-096-1366
Solicitation Topic Code:
N04-096
Small Business Information
AEPTEC MICROSYSTEMS, INC.
700 King Farm Boulevard, Suite 600, Rockville, MD, 20850
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
007959281
Principal Investigator
 Thurston Brooks
 Principal Investigator
 (301) 670-6779
 tbrooks@aeptec.com
Business Contact
 Steven Chen
Title: President and CEO
Phone: (301) 670-6779
Email: schen@aeptec.com
Research Institution
N/A
Abstract
The use of batteries to power wireless sensors remains a major maintenance impediment to their use in large numbers. To solve these problems the Navy desires innovative methods to scavenge power from broadcast RF signals to power sensors. Under Phase I of this SBIR, AEPTEC's Team will create a development plan for energy scavenging in two usage modes: (1) for ambient environments, a single small power unit capable of supplying energy for an low power wireless sensor such as a Mote or MEMS chip, and (2) for directed energy sources, a power unit capable of deriving larger quantities of energy from units such as a 802.11 Access Point. To do these technologies, (i) AEPTEC will employ methods for optimizing RF energy transmission to the target scavenging device utilizing a Smart Antenna design combined with (ii) methods for RF energy reclamation using receive antenna device and proprietary microelectromagnetic physical structures and related circuitry that boasts up to 96% conversion efficiency. The developed solution will not interfere with RF data transfer between sensors and wireless access points and will be compatible with industry standard wireless protocols such as the IEEE 802.11 family, IEEE 802.15 family (Bluetooth), and emerging IEEE 1451.5 standard. A report will be provided that details the concept, suggested metrics and estimated life-cycle costs

* information listed above is at the time of submission.

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