Microwave mode shifting antenna system for regenerating particulate filters
US7931727B2 · kind B2 · utility
5Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2008 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | Feb 7, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N3/035
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.