The losses of two kinds of structure are measured with Hewllet-Packed automatic network analyser(HP8510).The errors,caused by impedance mismatched between the helix and coupler are corrected.

• 在HP8510矢量网络分析仪上对两种结构的损耗进行了测量，并对螺旋线与能量耦合器之间的阻抗失配引起的误差进行了修正。