Patent ID: 9722308
Date: 2017-08-01
CPC Classifications: H01Q

Claim:
1. A low passive intermodulation (PIM) antenna apparatus, comprising: a pair of planar radiating elements, each of the pair of planar radiating elements comprising a pair of larger surfaces that are separated by a smaller surface of the respective radiating element, a first larger surface of a first of the pair of radiating elements being parallel with a second larger surface of a second of the pair of radiating elements; a ground plane upon which the pair of planar radiating elements are disposed, at least a majority portion of each of the pair of planar radiating elements being disposed on a same side of the ground plane; and one or more isolation rings disposed between the pair of planar radiating elements, the one or more isolation rings being oriented orthogonal with the first larger surface of the first of the pair of radiating elements and the second larger surface of the second of the pair of radiating elements, the one or more isolation rings being electrically coupled to the ground plane with a majority portion of the one or more isolation further being disposed on the same side of the ground plane; wherein the pair of planar radiating elements and the one or more isolation rings are disposed substantially orthogonal with respect to a top surface of the ground plane; and wherein the disposition of the one or more isolation rings between the pair of radiating elements improves upon an isolation measure between the pair of radiating elements.