Measurements of Beidou Antenna for Iridium Communication

With the increasing demand for large-scale data transmission and data security in deep sea observation and detection, Iridium and Beidou dual-mode communication has become the main approach in the field of China’s ocean observation and detection. However, the size and weight of the two antennas are not easy to reduce, which presents a challenge to the buoyancy control system of carriers such as deep sea ARGO buoys. According to the fact that the RDSS L frequency band of Beidou satellite is similar to that of Iridium Satellite system and partly coincides with Iridium frequency band, this paper provides the potential of using Beidou deep sea antenna for Iridium communication. Firstly, the electrical characteristics of existing Iridium and Beidou antennas on the market are measured in microwave anechoic chamber and SATIMO system. Then the outdoor measurements are conducted. The results show that the Beidou deep sea antenna can be used for Iridium communication.