Input selective smart bias tee

The Invention comprises a method and Interface for powering and controlling an antenna, having an RF signal input, an AISG signal input, including a DC current, wherein the RF signal input is coupled to the antenna by a filter, so the filter blocks a signal with DC current, and the AISG signal is coupled to the antenna through a switch, so that if an AISG signal is present, the switch automatically allows the AISG signal through to the antenna for control of the antenna, and if no AISG signal is present, the RF signal is automatically allowed through to the antenna for control of the antenna. 本发明包括种用于向天线供电和控制天线的方法和接口，具有RF信号输入、包括DC电流的AISG信号输入，其中所述RF信号输入通过滤波器被耦合到天线，因此滤波器阻断具有DC电流的信号，并且所述AISG信号通过开关耦合到所述天线，使得如果存在AISG信号，则开关自动地允许AISG信号通过到达天线以用于所述天线的控制，以及如果不存在AISG信号，则RF信号被自动地允许通过到达天线以用于所述天线的控制。