Patent ID: 7292195
Filing Date: 2007-11-06
Classification: H01Q

Abstract:
1. An antenna assembly comprising: a loop comprising a conductive circuit; a counterpoise; a first feed point and a second feed point at each end of the conductive circuit, each feed point communicating with an output of a hybrid coupler having a sum input and a difference input; a first impedance inserted in series with the loop at each of the first and the second feed point; and a second impedance inserted in series with the loop at a location substantially equidistant from the first and second feed points; and wherein the conductive circuit includes a plurality of separate segments along a length of the conductive circuit, where two or more of the segments substantially extend in a first direction and at least one of the segments substantially extends in a second direction that is substantially orthogonal to the first direction, and where each one of the two or more of the segments that substantially extend in the first direction is respectively associated with and located proximate a corresponding one of the first and second feed points, and one of the at least one of the segments that substantially extends in a second direction includes or is proximate the location along the loop that is substantially equidistant from the first and second feed points.