基于基片集成波导结构的小型化无源微波器件研究

发布时间：2018-06-01 22:18

本文选题：基片集成波导 + 滤波器　；参考：《西安电子科技大学》2015年硕士论文

【摘要】：基片集成波导是一种近十年来新提出的传输线结构,通过在低损耗的介质基片上进行双面覆盖金属,并在基片上引入两列周期性排列的金属化通孔来实现,整个基片集成波导在结构上类似于介质填充的金属波导,其电磁传播特性也相似。基片集成波导可以使用PCB、LTCC等工艺进行加工,其平面结构的特点使得易于和其它的平面电路如微带线、带状线、共面波导等相集成,在具有低插损、高Q值、高功率容量、低辐射等优点的同时,还具有小型化、低成本、便于量产的特点,适应了当前微波技术的发展趋势,具有广阔的发展前景。本文围绕基于基片集成波导的小型化无源微波器件展开了研究,具体的研究工作和成果概括如下:1、基片集成波导的基本结构研究。包括基片集成波导的传播特性、金属化通孔的设计以及介质基片的选择,同时还对于基片集成波导与其他平面传输线转换器进行了介绍,包括基片集成波导与微带线、共面波导的转换器,以及耦合形式的转换器。2、LTCC交指型带通滤波器研究。首先研究了滤波器设计的基本理论以及耦合谐振器电路,在此基础上,基于LTCC工艺设计了一款工作于10GHz的垂直交指型带通滤波器,以及一款工作于10GHz的源和负载耦合的垂直交指带通滤波器,引入源和负载耦合后,滤波器在有限的频带内产生了传输零点,过渡带更加陡峭。3、基片集成波导三维LEGO结构研究。对LEGO结构的基本单元E面弯角进行了深入的研究,综合考虑等效电路及影响其传输性能的几个因素,设计了一款基于LEGO结构的用于微波无线连接(工作于10.7~11.7GHz)的基片集成波导魔T,并采用人工蜂群算法对其进行优化,仿真结果与实测结果取得了基本一致的效果。4、非完整模基片集成波导谐振器研究。首先研究了四分之一模基片集成波导谐振器不同谐振频率下的谐振模式,同时还研究了八分之一模谐振器的主模,基于耦合谐振器电路设计了一款工作于10GHz的四分之一模基片集成波导三模带通滤波器,一款工作于5.8GHz的四分之一模的直接耦合带通滤波器以及一款工作于10GHz的四分之一模与八分之一模相互耦合的带通滤波器,仿真结果与实测结果取得了良好的一致性。
[Abstract]:The substrate integrated waveguide is a newly proposed transmission line structure in the last ten years. By covering metal on a low loss dielectric substrate and introducing a metallized through hole with two columns of periodic arrangement on the substrate, the whole substrate integrated waveguide is similar to a metal waveguide filled with medium, and its electromagnetic propagation characteristics are also phase. Like. The substrate integrated waveguide can be processed by PCB, LTCC and other processes. The features of its plane structure make it easy to integrate with other planar circuits, such as microstrip, strip line, coplanar waveguide and so on. In the same time, it has the advantages of low insertion loss, high Q value, high power capacity, low radiation and so on. It also has the characteristics of miniaturization, low cost, and convenient for production. The development trend of the current microwave technology has a broad prospect. This paper focuses on the research of miniaturized passive microwave devices based on the substrate integrated waveguide. The specific research work and achievements are summarized as follows: 1, the basic structure of the substrate integrated waveguide, including the propagation characteristics of the substrate integrated waveguide and the design of the metallized through hole As well as the selection of dielectric substrates, the basic chip integrated waveguide and other planar transmission line converters are also introduced, including the substrate integrated waveguide and microstrip line, the coplanar waveguide converter, and the coupling form converter.2, the LTCC interdigital bandpass filter. First, the basic theory and coupling of the filter design are studied. The resonator circuit, based on this, designs a vertical cross finger bandpass filter working on 10GHz based on the LTCC process, and a vertical cross finger bandpass filter that works on the source and load coupling of the 10GHz. After the coupling of the source and load, the filter produces the transmission zero in the limited frequency band, the transition band is steepening.3, the substrate is more steep. The three-dimensional LEGO structure of integrated waveguide is studied. The basic unit E bending angle of the LEGO structure is deeply studied. Considering the equivalent circuit and several factors affecting its transmission performance, a base chip integrated waveguide magic T for microwave wireless connection (working in 10.7~11.7GHz) based on LEGO structure is designed, and the artificial bee colony algorithm is used. It is optimized, the simulation results and the measured results have achieved the basic effect.4, the non complete mode substrate integrated waveguide resonator research. First, the resonant modes of the 1/4 mode substrate integrated waveguide resonators at different resonant frequencies are studied. At the same time, the main modes of the 1/8 mode resonators are also studied, based on the coupling resonator circuit setting. Plan a 10GHz work in the 1/4 the third mock exam mode substrate integrated waveguide bandpass filter, bandpass filter with 1/8 mode 1/4 mode 1/4 mode a direct coupling workingwithin 5.8GHz band pass filter and a 10GHz coupling, simulation results and experimental results and a good agreement Sex.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN713

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