Transparent Glass Antenna for 28 GHz and its Signal Reception Characteristics in Urban Environment

This paper proposes a transparent glass antenna for the 28-GHz band for 5G connected vehicles and clarifies the signal reception characteristics when distributing the glass antennas to vehicle windows in an urban environment. Comparison results between the distributed transparent glass antennas and an omni-directional antenna show that the relative received power for the glass antenna is higher than that for the omni-directional antenna. In addition, results show that the relative received power when using a vertically and horizontally polarized antenna are approximately the same. Therefore, we actualize a transparent antenna that maintains the high antenna gain and omni-directional antenna pattern using vertical and horizontal polarization when installed on the windows.