滤波天线及其阵列综合设计研究

项目名称： 滤波天线及其阵列综合设计研究

项目编号： No.61501232

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 邓宏伟

作者单位： 南京航空航天大学

项目金额： 20万元

中文摘要： 从天线和滤波器的整体性能出发，一体化设计结构紧凑高性能滤波天线及其阵列具有重要的研究意义。本项目基于传统的广义Chebyshev滤波器综合理论，分析推导广义Chebyshev滤波器传输函数与有耗和频变耦合矩阵的关系，并对有耗和频变耦合矩阵的提取方法进行深入研究，从而能够稳定有效地提取特定拓扑结构对应的耦合矩阵。研究有耗和频变耦合机理，着重研究设计有耗和频变耦合的新结构，并探索实现有耗和频变耦合结构的耦合系数的新方法，设计新型的小型化高性能滤波器和双工器。研究设计新型的天线和双馈双频天线结构，并准确提取天线的Q值，在此基础上利用子耦合矩阵综合设计方法设计高性能滤波天线和双工滤波天线。考虑天线阵列相位和空间分布及谐振器间耦合相位性质，在对电和磁耦合结构实现进行深入研究的基础上，设计简单的滤波天线阵拓扑结构。进而研究有限谐振器Q值有耗滤波器综合，利用子耦合矩阵综合设计方法研制新型的滤波天线阵。

中文关键词： 滤波天线；滤波天线阵；滤波器综合；滤波器设计；微波双工器

英文摘要： To improve the overall performance of antennas and filters, a co-design approach is applied to realize the filtering antenna and filtering antenna array with compact size and high performance, which are significant to the theoretical research. Based on the traditional synthesis theory of the generalised Chebyshev filters, the relationship between the transfer function of generalised Chebyshev filter and the lossy and frequency coupled matrix is analyzed and derivated. The lossy and frequency coupled matrix of the specific topological structure is stably and effectively extracted through the in-depth study of the coupled matrix extraction method. By studying the lossy and frequency dependent coupling mechanism, emphatically designing new lossy and frequency dependent coupled structure, and researching new realizing method of the coupling coefficient for the lossy and frequency dependent coupled structure, novel compact and high performance filter and diplexer structures can be accurately designed. Based on the design of the new antenna and double-fed dual-band antenna structures and the accurate extraction of the quality factor (Q) of the antenna, the compact and high performance filtering antenna and diplexer filtering antennas are proposed by using the submatrix synthesis design method. Further, considering the phase and spatial distribution of the antenna array and the phase property of the coupling between the resonators, the simple topology of the filtering antenna array is designed based on the invstigation of the new electric and magnetic coupled structure. Through the in-depth investigation of the synthesis of the filter with finite Q resonators, the novel filtering antenna array is synthesized designed by using the submatrix synthesis design method.

英文关键词： Filtering Antenna ;Filtering Antenna Array;Filter Synthesis;Filter Design;Microstrip Diplexer