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Microwave mode shifting antenna system for regenerating particulate filters

United States Patent

April 26, 2011
View the Complete Patent at the US Patent & Trademark Office
A regeneration system comprises a particulate matter (PM) filter including a microwave energy absorbing surface, and an antenna system comprising N antennas and an antenna driver module that sequentially drives the antenna system in a plurality of transverse modes of the antenna system to heat selected portions of the microwave absorbing surface to regenerate the PM filter, where N is an integer greater than one. The transverse modes may include transverse electric (TE) and/or transverse magnetic (TM) modes.
Gonze; Eugene V. (Pinckney, MI), Paratore, Jr.; Michael J. (Howell, MI), Kirby; Kevin W. (Calabasas Hills, CA), Phelps; Amanda (Malibu, CA), Gregoire; Daniel J. (Thousand Oaks, CA)
GM Global Technology Operations, Inc. (
11/ 972,952
January 11, 2008
STATEMENT OF GOVERNMENT RIGHTS This disclosure was produced pursuant to U.S. Government Contract No. DE-FC-04-03 AL67635 with the Department of Energy (DoE). The U.S. Government has certain rights in this disclosure.