Patent ID: 8842046

Claim:
An apparatus comprising: a substrate having a first feed terminal, a second feed terminal, and a ground terminal; a first metallization layer disposed over the substrate, wherein the first metallization layer includes: a first window region; a first conductive region disposed over and in electrical contact with the first feed terminal, wherein first conductive region is substantially circular, and wherein the first conductive region is located within the first window region; a second conductive region disposed over and in electrical contact with the second feed terminal, wherein the second conductive region is substantially circular, and wherein the first conductive region is located within the first window region; and a third conductive region disposed over and in electrical contact with the ground terminal, wherein the third conductive region substantially surrounds the first window region; and a second metallization layer disposed over and in electrical contact with the first, second, and third conductive regions of the first metallization layer, wherein the second metallization layer includes a second window region that is at least partially aligned with the first window region; wherein the ground terminal further comprises a first ground terminal, and wherein the substrate has a second ground terminal, and wherein the first feed terminal, the second feed terminal, the first ground terminal, and the second ground terminal are substantially aligned; wherein the first window region is substantially rectangular; wherein the apparatus further comprises: a first via that extends between the first ground terminal and the third conductive region; a second via that extends between the second ground terminal and the third conductive region; a third via that extends between the first feed terminal and the first conductive region; and a fourth via that extends between the second feed terminal and the second conductive region; wherein the second metallization layer further comprises: a fourth conductive region that substantially surrounds the second widow conductive region and that is in electrical contact with the third conductive region; a fifth conductive region that bisects the second window region and that is electrical contact with the fourth conductive region; a sixth conductive region that is disposed over the first conductive region, is generally coextensive with the first conductive region, and is in electrical contact with the first and fifth conductive regions; and a seventh conductive region that is disposed over the second conductive region, is generally coextensive with the second conductive region, and is in electrical contact with the second and fifth conductive regions.