Patent ID: 8345639

Claim:
An antenna comprising: an antenna port; first and second radiating elements forming a first dipole antenna; third and fourth radiating elements forming a second dipole antenna that is oriented orthogonally relative to the orientation of the first dipole antenna, the first radiating element being co-linear to the second radiating element and the third radiating element being co-linear to the fourth radiating element; and at least one diplexer comprising at least one high pass filter coupled between the antenna port and the first and second radiating elements and at least one low pass filter coupled between the antenna port and the third and fourth radiating elements, the at least one high pass filter to attenuate signals below a high pass roll-off frequency that are propagating between the antenna port and the first and second radiating elements, and the at least one low pass filter to attenuate signals above a low pass roll-off frequency that are propagating between the antenna port and the third and fourth radiating elements, wherein the low pass roll-off frequency is substantially equivalent to the high pass roll-off frequency.