The Influence of Conducting Rough Surfaces on the Performance of Microwave Coazial Filter
Conducting Rough Surfaces (CRS) of microwave devices introduced by the manufacturing process lead to a variation in the device performance. In course of debugging microwave and millimeter wave devices, we often need to get the accurate electromagnetic models for conducting rough surfaces. In this paper, the electromagnetic characteristics of two-dimensional conducting rough surfaces are studied at microwave frequencies. Machine-fabricated rough surfaces with controlled roughness statistics were examined accurately. The reflecting energy and the absorbing energy of electromagnetic waves are dependent on the surface roughness and the working frequency. Because microwave has a short wavelength, the characteristics of the reflecting and the absorbing energy of electromagnetic waves are affected by the surface roughness strongly. In this paper, the reflecting characteristics and the absorbing characteristics of a series of nickel, aluminous and gold rough surfaces are measured using the broadband integrative vector network analyzerthe (VNA) from 3.95 GHz to 4.25 GHz. The reflecting coefficient and the absorbing characteristics of the rough surfaces are extracted by the measured data and the statistical analysis methods.
Conducting roug surfaces coazial filter
Yuemin Ning Wanshun Jiang Jianqin Deng
41st Institute of China Electronic Technology Group Corporation National Key Laboratory of Science and Technology on Electronic Test and Measurement
国际会议
北京
英文
798-801
2009-10-27（万方平台首次上网日期，不代表论文的发表时间）