螺旋体结构参数对手性材料反射系数的影响  

The effects on the reflectance of chiral materials by the constitutive parameters of helix

作　　者：章平[1] 黄致新[2] 王国强[1] 

机构地区：[1]郧阳师范高等专科学校物理系,湖北丹江口442700 [2]华中师范大学物理科学与技术学院,武汉430079

出　　处：《华中师范大学学报（自然科学版）》2007年第1期48-50,共3页Journal of Central China Normal University：Natural Sciences

基　　金：湖北省教育厅重点项目(2000A4002)

摘　　要：以石蜡为基底，以铜螺旋体为手性掺杂体，制作了手性复合材料，利用圆波导测量法在8．5～11．5GHz频段内测量了各样品的反射系数．分析了螺旋体的螺径、螺距、线径、环数对手性材料的反射系数的影响．结果表明，选取适当结构参数的螺旋体，可以有效地降低手性材料的反射系数。The chiral materials are prepared by using copper helices as chiral inclusions, in which paraffins was used as matrix. The reflectance of chiral materials are measured in the range of 8.5-11.5 GHz by using the measurement method of microwave circular waveguide. The effects on the reflectance of chiral material by the diameter, the pitch, the gauge and the rings of the helices have been analyzed. The results indicate that selecting appropriate constitutive parameters of helix can depress the reflectance of chiral materials efficiently.

关 键 词：结构参数 手性材料 反射系数 

分 类 号：O482.4[理学—固体物理]