An Efficient Detection Method for Vector Reflection Coefficient Based on USRP Platform

Vector reflection coefficient is very important for an antenna. Traditionally, VNA (vector network analyzer) is used as the measuring tool. In this paper, we put forward a SDR based measuring method for S parameter detection of antennas. LabVIEW is used to build a framework of this platform. Users can adjust the specific parameters of the signal generated and processed by USRP according to the actual scenario. This method tends to be more flexible and efficient. A comparison of different measuring method is also made to prove its reliability.