The ETU influence on characteristic impedance in GTEM Cell two-dimensional cross section is calculated by using FEM. The influences on the characteristic impedance in GTEM cell induced by grounding and un-grounding metal EUT are compared.

• 利用有限元方法计算了GTEM室内二维截面上EUT对特性阻抗的影响,比较了金属EUT接地和不接地2种情况下对GTEM室特性阻抗的影响;