EBG-based electronic filter using multi-layer and multi-cell structure
AssigneeAmazon Technologies, Inc.
InventorsJe Kyung Lee, Anuj Modi, Tzung-I Lee, Cheol Su Kim
Life of this patent
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Abstract
An electronic filter includes a ground plane and a top conductor overlying the ground plane. The top conductor includes an input and an output for receiving and outputting signals, respectively. The filter further includes a plurality of unit cells arranged in series along the top conductor. Each of the plurality of unit cells includes a planar structure disposed between the top conductor and the ground plane. Each of the plurality of unit cells further includes a pair of vias connecting the planar structure to the ground plane.
Claims20
A method of filtering a signal, the method comprising:
- receiving the signal at an input of a top conductor, the top conductor overlying a ground plane;
- passing the signal through a plurality of unit cells arranged in series along the top conductor, wherein each of the plurality of unit cells includes:
- a planar structure disposed between the top conductor and the ground plane, wherein the planar structure is composed of a conductive material;
- and
- a pair of vias connecting the planar structure to the ground plane;
- and
- outputting the signal at an output of the top conductor
- wherein the plurality of unit cells are geometrically tapered in a first direction such that a width of a first unit cell of the plurality of unit cells is less than a width of a second unit cell of the plurality of unit cells, wherein the first unit cell neighbors the second unit cell.
An apparatus comprising:
- a ground plane;
- a top conductor overlying the ground plane, the top conductor having an input and an output for receiving and outputting signals, respectively;
- and
- a plurality of unit cells arranged in series along the top conductor, wherein each of the plurality of unit cells includes:
- a planar structure disposed between the top conductor and the ground plane, wherein the planar structure is composed of a conductive material;
- and
- a pair of vias connecting the planar structure to the ground plane;
- wherein the plurality of unit cells are geometrically tapered in a first direction such that a width of a first unit cell of the plurality of unit cells is less than a width of a second unit cell of the plurality of unit cells, wherein the first unit cell neighbors the second unit cell.
An apparatus comprising:
- a ground plane;
- a top conductor overlying the ground plane, the top conductor having an input and an output for receiving and outputting signals, respectively;
- and
- a plurality of unit cells arranged in series along the top conductor, wherein each of the plurality of unit cells includes:
- a planar structure disposed between the top conductor and the ground plane, wherein the planar structure is composed of a conductive material;
- and
- a pair of vias connecting the planar structure to the ground plane;
- wherein the top conductor includes at least one inter-cell path between portions of the top conductor that overlie neighboring cells of the plurality of unit cells, and wherein the at least one inter-cell path is non-linear.
A method of filtering a signal, the method comprising:
- receiving the signal at an input of a top conductor, the top conductor overlying a ground plane;
- passing the signal through a plurality of unit cells arranged in series along the top conductor, wherein each of the plurality of unit cells includes:
- a planar structure disposed between the top conductor and the ground plane, wherein the planar structure is composed of a conductive material;
- and
- a pair of vias connecting the planar structure to the ground plane;
- passing the signal through at least one inter-cell path of the top conductor, wherein the at least one inter-cell path is between portions of the top conductor that overlie neighboring cells of the plurality of unit cells, and wherein the at least one inter-cell path is non-linear;
- and
- outputting the signal at an output of the top conductor.
Dependencies are inferred from the claim text.