Abstract: A sensor assembly for determining the level of oil in a filter pan is disclosed herein. The assembly includes a load cell for sensing the amount of oil in the filter pan. The filter pan is pivotable about an end of the pan within a frame for supporting cooking equipment. The load cell is attached on one end to the frame. The assembly also includes a lever pivotable about a fulcrum, such that the first end of the lever supports the other end of the oil filter pan, and the second end of the lever urges against the load cell.

Abstract: A circulator comprises a waveguide housing having a plurality of hollow waveguide arms that communicate with a central cavity, the waveguide housing having a height defined by a plurality of waveguide sidewalls between a waveguide floor and a waveguide ceiling. A ferrite element is disposed in the central cavity of the waveguide housing, with the ferrite element including a central portion. The ferrite element further includes a plurality of ferrite segments that each extend from the central portion and terminate at a distal end. A plurality of dielectric transformers each having an upper surface protrude into the waveguide arms away from the central cavity along the waveguide floor. The dielectric transformers have a height that is less than the height of the waveguide housing such that the upper surface of the transformers is separated from the waveguide ceiling by a gap.

Abstract: A circulator for a waveguide is provided. The circulator comprises a waveguide housing including a central cavity, and a ferrite element disposed in the central cavity of the waveguide housing, with the ferrite element including a first surface and an opposing second surface. The circulator also comprises a pair of asymmetric dielectric spacers including a first dielectric spacer located on the first surface of the ferrite element, and a second dielectric spacer located on the second surface of the ferrite element.

Abstract: A circulator comprises a waveguide housing having a plurality of hollow waveguide arms that communicate with a central cavity, the waveguide housing having a height defined by a plurality of waveguide sidewalls between a waveguide floor and a waveguide ceiling. A ferrite element is disposed in the central cavity of the waveguide housing, with the ferrite element including a central portion. The ferrite element further includes a plurality of ferrite segments that each extend from the central portion and terminate at a distal end. A plurality of dielectric transformers each having an upper surface protrude into the waveguide arms away from the central cavity along the waveguide floor. The dielectric transformers have a height that is less than the height of the waveguide housing such that the upper surface of the transformers is separated from the waveguide ceiling by a gap.

Abstract: A circulator comprises a waveguide housing having a plurality of hollow waveguide arms that communicate with a central cavity, the waveguide housing having a height defined by a plurality of waveguide sidewalls between a waveguide floor and a waveguide ceiling. A ferrite element is disposed in the central cavity of the waveguide housing, with the ferrite element including a central portion. The ferrite element further includes a plurality of ferrite segments that each extend from the central portion and terminate at a distal end. A plurality of dielectric transformers each having an upper surface protrude into the waveguide arms away from the central cavity along the waveguide floor. The dielectric transformers have a height that is less than the height of the waveguide housing such that the upper surface of the transformers is separated from the waveguide ceiling by a gap.

Abstract: A circulator for a waveguide is provided. The circulator comprises a waveguide housing including a central cavity, and a ferrite element disposed in the central cavity of the waveguide housing, with the ferrite element including a first surface and an opposing second surface. The circulator also comprises a pair of asymmetric dielectric spacers including a first dielectric spacer located on the first surface of the ferrite element, and a second dielectric spacer located on the second surface of the ferrite element.

Abstract: A compact interfacing device for rotating electro-magnetic fields between an input and output waveguide includes a support bar extending between opposing sides of a frame, the frame encircling an interior space divided by the support bar; and a dipole bar orientated orthogonal to the support bar. When the input waveguide interfaces an input-side of the frame and is arranged so that an extent of an input width of the input waveguide is orientated at first angle with respect to an extent of the dipole-bar length, and when the output waveguide interfaces an output-side of the frame and is arranged so that an extent of an output width of the output waveguide is orientated at a second angle with respect to the extent of the dipole-bar length, an input electric field aligned perpendicular to the extent of the input width is rotated upon propagating through the compact interfacing device.

Abstract: A circulator for a waveguide is provided. The circulator comprises a waveguide housing including a central cavity, and a ferrite element disposed in the central cavity of the waveguide housing, with the ferrite element including a first surface and an opposing second surface. The circulator also comprises a pair of asymmetric dielectric spacers including a first dielectric spacer located on the first surface of the ferrite element, and a second dielectric spacer located on the second surface of the ferrite element.

Abstract: A circulator for a waveguide is provided. The circulator comprises a waveguide housing including a central cavity, and a ferrite element disposed in the central cavity of the waveguide housing, with the ferrite element including a first surface and an opposing second surface. The circulator also comprises a pair of asymmetric dielectric spacers including a first dielectric spacer located on the first surface of the ferrite element, and a second dielectric spacer located on the second surface of the ferrite element.

Abstract: A circulator for a waveguide is provided. The circulator comprises a waveguide housing including a central cavity, and a ferrite element disposed in the central cavity of the waveguide housing, with the ferrite element including a first surface and an opposing second surface. The circulator also comprises a pair of asymmetric dielectric spacers including a first dielectric spacer located on the first surface of the ferrite element, and a second dielectric spacer located on the second surface of the ferrite element.

Abstract: A circulator comprises a waveguide housing having a plurality of hollow waveguide arms that communicate with a central cavity, the waveguide housing having a height defined by a plurality of waveguide sidewalls between a waveguide floor and a waveguide ceiling. A ferrite element is disposed in the central cavity of the waveguide housing, with the ferrite element including a central portion. The ferrite element further includes a plurality of ferrite segments that each extend from the central portion and terminate at a distal end. A plurality of dielectric transformers each having an upper surface protrude into the waveguide arms away from the central cavity along the waveguide floor. The dielectric transformers have a height that is less than the height of the waveguide housing such that the upper surface of the transformers is separated from the waveguide ceiling by a gap.

Abstract: A circulator for a waveguide is provided. The circulator comprises a waveguide housing including a central cavity, and a ferrite element disposed in the central cavity of the waveguide housing, with the ferrite element including a first surface and an opposing second surface. The circulator also comprises a pair of asymmetric dielectric spacers including a first dielectric spacer located on the first surface of the ferrite element, and a second dielectric spacer located on the second surface of the ferrite element.

Abstract: A compact interfacing device for rotating electro-magnetic fields between an input and output waveguide includes a support bar extending between opposing sides of a frame, the frame encircling an interior space divided by the support bar; and a dipole bar orientated orthogonal to the support bar. When the input waveguide interfaces an input-side of the frame and is arranged so that an extent of an input width of the input waveguide is orientated at first angle with respect to an extent of the dipole-bar length, and when the output waveguide interfaces an output-side of the frame and is arranged so that an extent of an output width of the output waveguide is orientated at a second angle with respect to the extent of the dipole-bar length, an input electric field aligned perpendicular to the extent of the input width is rotated upon propagating through the compact interfacing device.