The Castle Series from Unictron Technologies are Ceramic Patch Antennas that operate from 1164 to 1606 MHz and cover GPS, Galileo, Glonass, Beidou, and QZSS bands. These circular (RHCP) polarized antennas provide a peak gain of up to 6.3 dBic and have a maximum VSWR of 2:1. They have a solid structure, simple and neat appearance, and use a flat single-layer integrated design that can receive multi-frequency signals. The antennas are available in various sizes with 20 x 20 x 7 mm being the smallest and 50 x 50 x 8 mm the largest. They are designed for satellite navigation/time synchronization and are ideal for drone monitoring, ship management, geographic map data collection cameras, building mobile positioning systems, satellites, navigation, and time synchronization applications.