文档介绍：本科毕业(设计)论文
题目: 微带巴伦的研究
系(院):电子信息工程学院
姓名:
专业: 电子信息工程
学号年级
指导教师职称讲师
微带巴伦的研究
摘要:在天线领域中,巴伦可以实现某些天线馈电的不平衡到平衡的转换。随着当今通讯技术的发展,通讯容量的不断扩大,要求天线在更宽的频带内工作,因此,对巴伦的工作频带要求越来越宽。由于微带巴伦具有易加工、可实现宽频带的特性,宽频带微带巴伦的研究已经成为当今的一个热门课题。本文结合有限元(finite element method,FEM)算法的理论分析,研究并设计了一类宽频带微带巴伦。介绍了巴伦的作用与原理,针对于微带线巴伦列出了详细计算阻抗的方法和公式,讲解在较高频率上如何设计微带线巴伦并进行ADS仿真。采用仿真的方法,对微带巴伦进行了深入的研究,微带线巴伦在幅度不同的范围内平衡输出基本保持一致,在很大频宽内都保持180°正交相位,。
首次应用接地共面波导(Copl anar Waveguide Ground,CPWG)和耦合微带线(Coupled Strip Line,CSL)设计了一种新型的宽频带微带巴伦,该类型微带巴伦可以在低相对介电常数的介质板上制作,具有结构紧凑、成本低廉、制作简单的特点。
关键词:微带巴伦;微带线;频宽
Microstrip balun research
In the antenna field, Barron can achieve some antenna feed unbalanced to balanced conversion. With today'munications technology, communication capacity continues to expand, requires an antenna in a wider band, therefore, e increasingly demanding Barron's operating band width. Because microstrip balun easy processing, wideband characteristics can be achieved, research broadband microstrip balun has e a hot topic. In this paper, FEM (finite element method, FEM) algorithm theory analysis, research and design a class broadband microstrip balun. Describes the role of the principle of Barron, Barron for microstrip line lists the methods and formulas detailed calculations impedance at higher frequencies to explain how to design microstrip balun and ADS simulation. Using simulation method, the microstrip balun in-depth research, microstrip line balun different ranges within range balanced output remained the same, in a wide bandwidth have maintained 180 ° quadrature phase, insertion loss is about is .
The first application of ground coplanar waveguide (Copl anar Waveguide Ground, CPWG) and coupled microstrip line (Coupled Strip Line, CSL), a new type of broadband microstrip balun, the type microstrip balun can be low relative permittivity in dielectric constant of the dielectric plate production, with pact, low cost, making simple features.
Keywords: Microstrip balun; Micro