计算机辅助的插值算法在均衡器设计中的应用

多谐振腔结构的均衡器是一种典型的复杂微波结构，由于其测龟数据总是由离散的有限点集组成，因而对其子结构测量数据库采用插值法进行无缝化处理就成为均衡器优化设计的关键技术之一。文章针对其S参数测量数据库，提出了一种工程上实用的多维插值算法，并介绍了该算法的主要思想。利用C＋＋ Builder编程软件和MATLAB拟和软件，给出了均衡器一维、二维的插值实例，并利用Origin图形软件对其插值特性进行了分析和改进。计算和分析结果表明。该算法能在较高的插值精度条件下对数据进行有效的插值处理。且该算法在微波器件的工程设计中具有一定的推广应用价值。

Application of Multivariable Interpolation Algorithm Based on Weight Function of the Distance's Reciprocal in the Design of Equalizer

Equalizer with multi-cavities is a kind of typical complex microwave structure.Using the interpolation algorithm to dispose the measurement database is the key in the design of equalizer.A multivariable interpolation algorithm which aims at the S] parameter measurement database of complex microwave structures is presented here.The main thought of this algorithm is introduced in this paper.Using the C++Builder programme software and Matlab fit software,the paper also presents the one dimensional,two dimensional interpolation examples of microwave equalizer.The improvement of interpolation algorithm is presented here by using the Origin software.The result of calculation indicates that the two kinds of measurement database can achieve effective data interpolation disposal by using the algorithm with proper interpolation precision.The algorithm has great practical value in microwave engineering design.