Patent ID: 8624791

Claim:
A cross-dipole antenna system, comprising: a cross-dipole antenna element, comprising: a first arm; a second arm, the first and second arms forming a first dipole; a third arm; and a fourth arm, the third and fourth arms forming a second dipole, wherein each of the arms lie in a plane and are spaced apart from each other by about 90 degrees, such that a proximal end of each of the arms is arranged near a center point and wherein each of the plurality of arms extends distally outward from the center point, wherein the cross-dipole antenna element has a substantially horizontal polarization orientation; a coaxial electrical cable coupling the cross-dipole antenna element to an electrical component and having an insulating outer jacket; and a half-wavelength choke configured to suppress electromagnetic interference (EMI) and/or radio frequency interference (RFI) having a target wavelength, the half-wavelength choke comprising: a first electro-conductive sleeve having a first length and configured to be disposed over an outer surface of an electrical cable; a first insulating layer disposed between the first electro-conductive sleeve and the electrical cable; a second electro-conductive sleeve having a second length and disposed over the first electro-conductive sleeve; and a second insulating layer disposed between the first electro-conductive sleeve and the second electro-conductive sleeve.