Antenna polarimetric calibration using multi-mode TRL calibration method and its extension

This paper presents two antenna polarimetric calibration methods. One is to use a multi-mode TRL calibration method. This method is generalized from the conventional TRL method, hence its operation bandwidth is limited. The other one is the "TRR (thru-rotation-reflector)" calibration method. This method uses one antenna to rotate along the propagation axis with an unknown angle. It has no limitation on the operation bandwidth.