Feature:1. PCB adopts 1.6mm thick double-sided board, 2.0 oz copper thickness, and full tinning process to ensure good passing performance of large and small currents2. Four‑arm helical antenna has a wide range of applications, including aerospace, meteorology, positioning, relay and many other fields3. The current amplitudes of the feed ends of the four spiral arms are equal, and the phases are different by 90° in turn4. With cardioid pattern, good front-to-back ratio and excellent wide-beam circular polarization characteristics5. 1.6G four-arm helical antenna is very suitable for use as a receiving antenna for satellite positioning systemsSpecification:Item Type: Four‑Arm Helical AntennaMaterial: PCBPurpose: Used in fields such as sky, weather, positioning, relay antenna, etc.Antenna Impedance: 50ΩWorking Frequency Band: 1.4 ~ 1.68GHzAntenna Connector: SMA (male).Package List:1 x Four-Arm Helical AntennaNote:Do not use it outside the frequency and impedance range.