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利用微波圆波导测量系统，在８．５～１１．５ ＧＨｚ 频段内测量了螺旋结构手性材料的手性参数．研究了手性掺杂体的螺径、螺距和线径对手性参数的影响．结果表明，随着螺旋体结构参数的变化，有Ｃｏｔｔｏｎ 效应出现． 实验结果为手性材料的设计提供了实验依据．
The chiral parameters of helical chiral materials were measured in the frequency band of 8.5-11.5 GHz by using the microwave circular waveguide measurement system. The chiral diameter, pitch and diameter of the chiral dopant on chiral parameters were investigated. The results show that with the spiral structure parameters change, Cotton effect appears. The experimental results provide the experimental basis for the design of chiral materials.