微波毫米波基片集成波导功分器实现技术

发布时间：2018-12-15 18:32

【摘要】：作为一种新型的导波结构,基片集成波导具有高集成度、高Q值、低成本等优点,广泛的应用于微波毫米波电路和系统中。本论文主要采用基片集成波导结构,研究了几种具有不同性能的微波毫米波功分器。本文的主要研究工作如下:1.通过对四分之一模式基片集成波导谐振器和半模基片集成波导谐振器的分析,采用类Wilkinson结构研制两种具有带通响应的功分器。在此基础上,通过嵌入多模谐振器和多个隔离电阻改善了双通带的频率选择特性和隔离特性,使用奇偶模法和耦合谐振器理论对以上电路进行了分析和设计。同时,采用基片集成波导径向腔、混合多过孔探针和引流槽技术,研制了一种具有宽带带通响应的功分器。2.以半模基片集成波导为基础,通过采用短路边馈电结构,实现了一种宽带的功分器。通过引入槽线隔离技术,有效的增强了功分器的隔离性能。同时,通过在电路中嵌入多模SIR谐振器,有效的改善了功分器的阻带性能。基于这些分析,提出并实现了宽带的两路和四路功分器。同时,采用Gysel功分器的拓扑结构,提出了一种具有高功率承受能力、高隔离特性功分器。通过奇偶模分析法对电路进行了理论分析,为电路的最终设计提供了参考。3.以全息术为理论基础,通过采用基片集成波导结构研制了一种毫米波宽带四路功分器,输入输出喇叭天线和抛物面反射镜均通过金属化通孔技术实现,通过在基板上开周期的空气槽实现了有限周期相位栅。同时,对整体电路的效率进行了深入的分析,为今后此类功分器的研究和设计指明了方向。
[Abstract]:As a new type of guided wave structure, substrate integrated waveguide has the advantages of high integration, high Q value and low cost. It is widely used in microwave millimeter wave circuits and systems. In this paper, several microwave millimeter wave power dividers with different performances are studied by using substrate integrated waveguide structure. The main work of this paper is as follows: 1. Through the analysis of 1/4 mode substrate integrated waveguide resonator and half mode substrate integrated waveguide resonator, two kinds of power dividers with bandpass response are developed by using Wilkinson like structure. On this basis, the frequency selection and isolation characteristics of double-pass band are improved by embedding multi-mode resonator and multiple isolation resistors. The circuit is analyzed and designed by using the odd-even mode method and coupled resonator theory. At the same time, a power divider with broadband band-pass response is developed by using substrate integrated waveguide radial cavity, mixed multi-hole probe and drainage slot technology. Based on the half-mode substrate integrated waveguide, a wideband power divider is realized by adopting a short side feed structure. By introducing slot isolation technology, the isolation performance of power divider is enhanced effectively. At the same time, the stopband performance of the power divider is improved effectively by embedding the multi-mode SIR resonator in the circuit. Based on these analyses, two and four power dividers are proposed and implemented. At the same time, using the topology structure of Gysel power divider, a kind of power divider with high power tolerance and high isolation characteristic is proposed. The theoretical analysis of the circuit is carried out by the method of parity mode analysis, which provides a reference for the final design of the circuit. Based on holography, a millimeter-wave wideband four-way power divider is developed by using a substrate integrated waveguide structure. Both the input and output horn antenna and the parabolic mirror are realized by metallizing through hole technology. The finite period phase gate is realized by opening the periodic air slot on the substrate. At the same time, the efficiency of the whole circuit is deeply analyzed, which points out the direction for the research and design of this kind of power divider in the future.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN626

【相似文献】