Low-cost X-polarised broadband PCS antenna with low cross-polarisation level

A broadband personal communication system (PCS) antenna concept, based on a low cost stacked patch approach is presented. The manufactured single elem ent shows an insertion loss bandwidth (-14dB) of 15.9% and is dedicated to the established PCS 1800 system including the DECT frequencies. The base st ation array antenna, a 1 x 8 element column array, is fabricated using dual +/-45 degrees polarised single elements. Within the 13.9% bandwidth of the array (-14dB) the measured level of crosspolarisation is below -16.5dB ove r all angles in both principal planes.