手持终端一体化与宽频带双极化天线研究

发布时间：2018-01-15 01:22

本文关键词：手持终端一体化与宽频带双极化天线研究　出处：《西安电子科技大学》2014年硕士论文　论文类型：学位论文

【摘要】：论文根据相关的科研项目进行了选题,研究的主要内容有以下两部分:在第一部分中,研制了手持终端一体化天线的实验样机,仿真和测试结果表明该天线达到了技术指标要求;在第二部分中,结合项目要求研制了宽频带双极化天线的实验样机,各项性能均达到了指标要求,具有工程应用价值。论文的主要研究内容为:1.手持终端一体化天线实验样机的研制结合项目中对手持终端一体化天线所提出的性能指标,首先根据第二章中的基础理论,指出了手持终端一体化天线的设计难点,并给出了该天线的设计方案。文中采用电磁仿真软件对手持终端一体化天线的设计方案进行了仿真分析,从仿真结果可以看出天线在其工作频带内的电压驻波比均小于2.0,且圆极化特性良好,各个天线之间的隔离度均大于14.0dB。在此基础上,对天线的实验样机进行了加工,并且对该天线的电性能进行了测试。测试结果显示,所研制出的手持终端一体化天线在其工作频带内的驻波性能良好,并在尺寸受限的情况下达到了高隔离度的指标要求。2.宽频带双极化天线实验样机的研制针对宽频带双极化天线的技术指标要求,论文首先阐述了微带天线的相关概念和研究现状,指出了该天线要同时实现宽频带、双极化以及高隔离度的设计难点,并给出了该天线的设计方案。采用电磁仿真软件对宽频带双极化天线进行了设计与分析,并在仿真优化的基础上加工了该天线的实验样机,根据对其测试后所得到的结果可以看出,所设计的宽频带双极化天线在其工作频带内的电压驻波比均小于2.5,并在实现宽频带和双极化的同时达到了两端口间高隔离度的指标要求,具有一定的工程应用价值。
[Abstract]:The main contents of this paper are as follows: in the first part, the experimental prototype of the integrated antenna of handheld terminal is developed. The simulation and test results show that the antenna meets the technical requirements. In the second part, the experimental prototype of broadband dual-polarization antenna is developed according to the requirements of the project. It has engineering application value. The main research content of this paper is: 1. The performance index of integrated antenna of handheld terminal is proposed in the research and combination project of the prototype of integrated antenna of handheld terminal. Firstly, according to the basic theory of the second chapter, the paper points out the difficulties in the design of the integrated antenna of the handheld terminal. The design scheme of the antenna is given, and the design scheme of the integrated antenna of the handheld terminal is simulated and analyzed by using the electromagnetic simulation software in this paper. The simulation results show that the VSWR of the antenna in its working band is less than 2.0, and the circular polarization characteristics are good. The isolation of each antenna is greater than 14.0dB. on this basis. The experimental prototype of the antenna is processed, and the electrical performance of the antenna is tested. The test results show that the integrated antenna of the hand-held terminal has good standing wave performance in its working band. Under the condition of limited size, the requirement of high isolation is reached. 2. The development of the experimental prototype of broadband dual-polarization antenna is aimed at the technical requirements of broadband dual-polarization antenna. In this paper, the related concepts and research status of microstrip antenna are introduced, and the difficulties of designing the antenna with wide band, double polarization and high isolation are pointed out. The design scheme of the antenna is given. The broadband dual-polarization antenna is designed and analyzed by electromagnetic simulation software, and the experimental prototype of the antenna is fabricated on the basis of simulation optimization. According to the test results, it can be seen that the voltage standing wave ratio of the designed broadband dual-polarization antenna is less than 2.5 in its working band. At the same time, it meets the requirement of high isolation between two ports, and has certain engineering application value.
【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】：2014
【分类号】：TN821.1

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