Low-Profile Magnetic Shielding for Circuit Board Electronics

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-08-M-0148
Agency Tracking Number: N081-060-1057
Amount: $69,851.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2008
Solicitation Topic Code: N08-060
Solicitation Number: 2008.1
Small Business Information
NVE CORP. (FORMERLY NONVOLATILE ELECTRON
11409 Valley View Road, Eden Prairie, MN, 55344
DUNS: 114264351
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Catherine Nordman
 Design Engineer
 (952) 996-1629
 cathyn@nve.com
Business Contact
 Curt Reynders
Title: CEO
Phone: (952) 829-9170
Email: reynders@nve.com
Research Institution
N/A
Abstract
Electronic components sensitive to magnetic fields, such as superconducting digital electonics, require magnetic shielding from ambient fields and magnetic pulses. While enclosures of high permeability magnetic materials are commonly used to achieve passive flux shunting, the structures are substantially larger than the circuitry being protected. For military and commercial satellites, this adds undesired volume and weight. A substantially lower-profile solution is proposed here in which stray magnetic fields are both passively shunted and actively nulled. The shielding assemblies are small and can be used alone or in arrays to cover desired areas of electronic components on printed circuit boards. The assemblies are expected to produce substantial magnetic-field reductions and yet have at least three times less the volume and weight of a purely passive shield.

* information listed above is at the time of submission.

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