Patent ID: 9466876
Filing Date: 2016-10-11
CPC Classification: H01Q,H04R

Claim Text:
1. An antenna comprising: a first conducting element having a first conductive surface; a second conducting element having a second conductive surface; a first conducting line providing a short circuit between the first and second conductive surfaces; a second conducting line having a first end electrically connected to the first conductive surface and a second, free end; a third conducting line having a first end electrically connected to the second conductive surface and a second, free end; wherein the second and third conducting lines are aligned along an axis and each of the second ends of the second and third conducting lines serves as one of the terminals of a two terminal port for feeding a radio frequency (RF) signal of wavelength λ to the antenna, and wherein the first and second conducting elements are arranged with the first and second conductive surfaces in a face-to-face relationship, spaced apart by a distance d, and the first, second and third conducting lines are arranged such that currents flow, in response to the feeding of a RF signal to the antenna, in the first conductive surface generate a magnetic field that at least partially cancels out the magnetic field generated by currents caused to flow in the second conductive surface, and currents are caused to flow in the first, second and third conducting lines, the currents caused to flow in the second and third conducting lines having two components, a first component generating a magnetic field that at least partially cancels out the magnetic field generated by the same current flowing in the first conducting line and a second component acting as the effective antenna current that generates an E-field vector along the axis of alignment of the second and third conducting lines.