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In the vehicle scene application, the connecting cable between the Tiantong module and the antenna is long, resulting in a large path loss, and the active antenna scheme is considered to reduce the impact of the path loss on the RF performance. Based on the optimization and adjustment of our Tiantong module, it can support the requirements of handheld passive antenna and vehicle-mounted active antenna.
In the vehicle scene application, the connecting cable between the Tiantong module and the antenna is long, resulting in a large path loss, and the active antenna scheme is considered to reduce the impact of the path loss on the RF performance. Based on the optimization and adjustment of our Tiantong module, it can support the requirements of handheld passive antenna and vehicle-mounted active antenna:
Handheld passive antenna scheme: it is composed of Tiantong module, AP carrier board and Tiantong antenna to meet the requirements of Tiantong satellite communication;
Vehicle-mounted active antenna scheme: it consists of Tiantong module, AP carrier board, active antenna transceiver component and Tiantong antenna;
• In the two vehicle application scenarios, the maximum transmission power of the system is not less than 33dBm; the minimum receiving sensitivity meets the requirement of better than-124dBm.
