腔体带通滤波器的设计与实现研究

发布时间：2018-05-01 09:09

本文选题：带通滤波器 + 交叉耦合　；参考：《安徽大学》2016年硕士论文

【摘要】：随着现代社会移动通信技术突飞猛进,产品更新迭代速度加快、价格竞争也愈发激烈。人们对在通信领域有重要作用的滤波器指标的要求也越来越高。随着计算机技术的突飞猛进,新的产品设计思路被不断提出,这也对滤波器的设计带来新的机遇和挑战。基于上面几点,本文以工程中的实际产品设计过程为切入点,对腔体滤波器的设计技术进行了详细的研究。首先,对滤波器原理进行了概括,对其基础理论进行简单的推导。其次,研究广义切比雪夫滤波器理论并对它的综合和化简方法进行详细的推导与验证。重点对CT/CQ拓扑结构的传输特性和化简进行了研究,并根据本章的研究编写了相关MATLAB程序,实现耦合矩阵的综合及化简,并用例子以验证。最后以实际产品开发的角度,从设计到仿真到调试对滤波器的快速设计方法进行了详细的研究。首先从滤波器综合开始,对给定指标进行更改以留有余量,方便最后的实物制作。其次,对如何将耦合矩阵综合出的参数映射到实体三维模型,将理论和工程经验相结合,从原理到操作及注意事项进行了详细的研究。对快速建模以及联合仿真技术进行探讨,提出一种简单实用的优化方式,对优化好的结果进行论证,并加工出实物。对实物调试进行简要概括,制作出满足要求的产品,对上述方法的理论进行了有效的论证。
[Abstract]:With the rapid development of mobile communication technology in modern society, the iterative speed of product renewal is accelerated, and the price competition is becoming more and more fierce. The requirement of filter index which plays an important role in communication field is becoming higher and higher. With the rapid development of computer technology, new product design ideas have been put forward, which brings new opportunities and challenges to filter design. Based on the above points, the design technology of cavity filter is studied in detail, which is based on the actual product design process in engineering. Firstly, the principle of filter is summarized and its basic theory is simply deduced. Secondly, the generalized Chebyshev filter theory is studied and its synthesis and simplification methods are deduced and verified in detail. The transmission characteristics and simplification of CT/CQ topology are studied in detail. According to the research in this chapter, the related MATLAB programs are written to realize the synthesis and simplification of coupling matrix, and an example is given to verify it. Finally, from the point of view of actual product development, the fast design method of filter is studied in detail from design to simulation to debugging. First, starting with filter synthesis, the given index is changed to make allowance, which is convenient for making the final object. Secondly, how to map the parameters synthesized from coupling matrix to solid 3D model, combining theory with engineering experience, from principle to operation and matters needing attention are studied in detail. This paper discusses the technology of rapid modeling and joint simulation, puts forward a simple and practical optimization method, demonstrates the good result of optimization, and processes the material object. This paper briefly generalizes the physical debugging, makes the products which meet the requirements, and proves the theory of the above method effectively.
【学位授予单位】：安徽大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN713

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