摘要
微波耦合谐振网络,包括带通滤波器和双工器等,在无线通信系统中有广泛的应用。严格的产品指标和制造误差之间的矛盾是大规模生产这类器件的主要困难所在。这篇文章回顾并总结了当前常用的一类有助于降低产品调试难度、降低整个生产成本的计算机辅助调试技术。这类方法利用有理式拟合方法,例如柯西方法和矢量拟合法,来提取网络的耦合矩阵。通过比较提取出的耦合矩阵和目标矩阵,可以诊断出一个耦合谐振器件的问题所在,从而帮助调试。文中给出了一些实际的例子来展示这些方法的可行性和有效性。
Microwave coupled-resonator networks,including bandpass filters and diplexers,have wide applications in wireless communication systems.The contradiction between stringent specifications on their performance and the loosely-controlled fabrication precision constitutes the major challenge in mass production of the devices.To help with the post-production tuning process and reduce the overall cost,this paper reviews some available analytical computer-aided tuning techniques,which rely on the rational function approximation techniques such as the Cauchy method and vector fitting to extract a coupling matrix from frequency-domain responses.By comparing the extracted matrix and the target matrix,one can easily identify which tuning elements need to be adjusted in order to obtain the desired response.Practical examples are given to demonstrate the applicability of these techniques.
出处
《微波学报》
CSCD
北大核心
2017年第5期1-7,共7页
Journal of Microwaves
基金
香港中文大学研究生奖学金
