Abstract: A spiral cylindrical ceramic circular polarized antenna, wherein a cylindrical ceramic body is made of microwave ceramic material with the dielectric constant equal to or greater than 20, and spiral radiation metallic electrodes are printed on the ceramic body to cause 90 degrees of phase difference between the neighboring spiral radiation metallic electrodes. A BALUN and transformer component, PCB, or ceramic ground plane is configured on the bottom tie-plate of the ceramic body to transfer the feed signal from unbalanced signal to balanced signal and to offer a matching impedance. With this design, two mutually perpendicular electromagnetic fields are formed to create CPW (Circular Polarized Wave), in order to facilitate the reception of GPS satellite signal.