Abstract
Today various types of vehicular antennas which can track the satellite have been studied for mobile satellite communications. In this paper, we chose CP-PASS which composed of strips and slots and Patch antenna which is cut corner, as circularly polarized printed antenna. We describe two four-element arrays of this element which is connected to beam-switching circuit. These antennas require phase shifters to cover whole azimuth direction by four beams. We discuss about the difference of the radiation pattern on both antennas.
