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A microwave regenerable filter element including a filter media for filtering particulates from an exhaust gas, and a plurality of discrete heat generators disposed in the filter media, each of the plurality of discrete heat generators being adapted to absorb microwave energy and convert the microwa

A microwave regenerable filter element including a filter media for filtering particulates from an exhaust gas, and a plurality of discrete heat generators disposed in the filter media, each of the plurality of discrete heat generators being adapted to absorb microwave energy and convert the microwave energy into heat. In one embodiment, the plurality of discrete heat generators may have a length dimension of substantially 1/2 of a microwave wavelength and a width dimension of substantially 1/8 of a microwave wavelength. In another embodiment, the plurality of discrete heat generators may be disposed in a spatial array in a manner that density of the plurality of discrete heat generators varies radially away from a central axis of the filter element. In yet another embodiment, the density of the plurality of discrete heat generators in the spatial array may also vary axially along the central axis of the filter element.

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1. A microwave regenerable filter element comprising:a filter media for filtering particulates from an exhaust gas; and a plurality of discrete heat generators disposed in said filter media, each of said plurality of discrete heat generators being adapted to absorb microwave energy and convert the m

1. A microwave regenerable filter element comprising:a filter media for filtering particulates from an exhaust gas; and a plurality of discrete heat generators disposed in said filter media, each of said plurality of discrete heat generators being adapted to absorb microwave energy and convert the microwave energy into heat; wherein each of said plurality of discrete heat generators are substantially planar shaped having a length dimension and a width dimension which are substantially larger than a thickness dimension.