The near-field mechanical subsystem by scans the frame, the axis controller , X axis, the Y axis, the Z axis, polarizes the axis step to enter motor and each frequency band wave guide pokes head in to compose . The radio frequency subsystem by receives and dispatches two parts to be composed, launch subsystem by the synthesis source, the directional coupler and the transmitting antenna is composed. Receives the subsystem by the synthesis source, the frequency converter, the vector network analyzer and the receiving antenna is composed. The frequency converter includes the mixer module, this inspires/the intermediate frequency assignment unit.