The axial cavum measurement device was used to simulate the input impedance of the body antenna based on the theory of long line.
本文基于长线理论用同轴线测量装置模拟弹体天线的输入阻抗值，使引信在同轴线测量装置中其工作状态和自由空间一样。
The common measurement of the two-port network'input impedance is to measure the S parameter, then Z parameter is calculated by the relation of S and Z, finally the input impedance is gained by the Z.
目前测量相参激励下二端口网络输入阻抗常用的方法是，先用二端口网络分析仪测量网络的散射矩阵S，再将散射矩阵S转化为阻抗矩阵Z，最后求出不同相参激励下各端口的输入阻抗。
The common measurement of the two-port network'input impedance is to measure the S parameter, then Z parameter is calculated by the relation of S and Z, finally the input impedance is gained by the Z.
目前测量相参激励下二端口网络输入阻抗常用的方法是，先用二端口网络分析仪测量网络的散射矩阵S，再将散射矩阵S转化为阻抗矩阵Z，最后求出不同相参激励下各端口的输入阻抗。
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