An antenna includes a diplexer having a high pass filter coupled to first and second radiating elements and a low pass filter coupled to third and fourth radiating elements, the first and second radiating elements oriented in a different direction relative to the third and fourth radiating elements. Signals are transmitted to or receive from the first and second radiating elements with a greater intensity relative to the intensity with which the signals are transmitted to or received from the third and fourth radiating elements when the signal frequencies are above a low pass roll-off frequency of the low pass filter. Signals are transmitted to or received from the third and fourth radiating elements with a greater intensity relative to the intensity with which the signals are transmitted to or received from the first and second radiating elements when the signal frequencies are below a high pass roll-off frequency of the high pass filter.