Intellectual CAD for Three-Tier Wide Band WDR Filters

作     者：Alexander G. Yushchenko Dovlet S. Mamedov Denis M. Zaytsev 

作者机构：不详 

出 版 物：《Wireless Engineering and Technology》 (无线工程与技术（英文）)

年 卷 期：2012年第3卷第1期

页      面：30-35页

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

主　　题：Intellectual CAD Waveguide-Dielectric Filters Expert System Optimization Methods Wide Band Pass 

摘      要：The paper presents an original physical points of an intellectual CAD system designing for three-tier wide band waveguide-dielectric filters with LM modes. On the basis of formalized physical knowledge about the behavior of coupled resonators, the CAD system analyses electromagnetic signal passing through a filter structure and makes decisions gradually approaching the optimal filter design through a series of changes in its geometry. From a mathematical point of view, this approach is an alternative to well-known optimization methods and is also very promising for solving the problem of finding a global extremum of an objective function. We also include the filter optimization results obtained with the CAD system for the frequency range 23 - 81 GHz, band widths up to 30% and insertion losses less than 0.5 dB.