Millimeter-Wave Dual-Polarized Omnidirectional Reference Antennas for Total Array Gain Evaluation

The present manuscript introduces a compact millimeter-wave dual-polarized reference antenna module designed for performance comparison of handset antenna arrays in multipath environments. Both vertically- and horizontally-polarized fields are covered with sufficiently wide impedance bandwidths and low gain variation along the horizontal plane. When integrated into a compact dual-polarized antenna module, the mutual coupling between the antennas is well controlled to ensure minimal distortion in the radiation patterns. Measurements confirm that the proposed antenna module achieves the designed low gain variation and almost identical realized gains for the two polarizations.