摘要功分器是相控阵雷达、多路中继通信机等微波设备不可缺少的重要组成部分。宽带功分器作为相控阵雷达等微波设备的关键部件，其尺寸和重量都受到严格的限制。所以，研制体积小、重量轻、成本低、性能良好的宽带功分器不仅是工程实际的需要，而且由于相控阵雷达在星载和机载系统中得到日益广泛的应用，使得这种研究显得尤为必要和迫切。因此，本论文的工作具有较大的实际意义。65334

本文对宽带Wilkinson功率分配器进行了初步研究，经过理论分析，建模仿真，做了以下的工作：

（1）全面而系统的阅读了关于RFID和电磁场理论的书籍理论，初步完成了所需的理论基础知识研究。

（2）本文以RFID系统理论为基础，对其中的Wi1kinson功率分配器进行了深入的研究，针对国内外的对于Wilkinson宽带设计相关经典设计结构进行了说明。

（3）对传统3dB单节功率分配器进行了改进，增加了带宽，设计出一种3dB多节宽带功率分配器，该功率分配器利用Agilent公司的ADS软件进行仿真，在1.45-2.15GHz频段范围能内满足良好的性能指标，输入输出端口均达到良好匹配。

毕业论文关键词：Wilkinson功率分配器 宽带 带状线 多节3dB 

毕业设计说明书（论文）外文摘要

Title Broadband Wilkinson power pider Research and Design

Abstract

Power pider is the indispensable component of microwave equipments such as phased-array radar, multi-channel relay communication system. Broadband power pider such as a phased-array radar’s microwave equipment, key parts of its size and weight are subject to strict limitations. Therefore, the development of small size, lightweight, low cost and good performance of the broadband power pider is not only the practical engineering needs, but also because of phased array radar in spaceborne and airborne systems are an increasingly wide range of applications, Makes this study is particularly necessary and urgent. Therefore, this paper's work has great practical significance.

In this paper, broadband Wilkinson power pider conducted a preliminary study, after a theoretical analysis, modeling and simulation, do the following tasks:

(1)Comprehensive and systematic reading about RFID and books on the theory of electromagnetic theory, initially completed the required theoretical basics of research.

(2)In this paper, power pider systems theory, on which the Wi1kinson power pider conducted in-depth research for broadband at home and abroad for the design-related Wilkinson classic design structure are described.

(3)the traditional single-3dB power splitter has been improved, increased bandwidth, to design a multi-section broadband 3dB power splitter, the power distributor with Agilent's ADS simulation software in the 1.45-2.15GHz band can be met within the scope of good performance indicators, input and output ports are to achieve a good match.

Key word：Wilkinson power pider，stripline,broadband,multi-section 3dB

目 录

第1章 绪论 1

1.1 选题背景及意义 1

1.2 研究现状和发展趋势 1

1.3 功分器理论概述 4

1.4 设计中使用的软件介绍 6

第2章 电磁学基础 8

2.1 电磁场基本理论 8

2.2 带状线 9

2.3 S参数 10

2.4 传输线 11

第3章 宽带Wilkinson功分器