多阵列宽频双极化天线的设计

发布时间：2018-01-07 00:36

本文关键词：多阵列宽频双极化天线的设计　出处：《武汉邮电科学研究院》2017年硕士论文　论文类型：学位论文

【摘要】：基站天线是移动通信重要组成部分之一。近年来移动通信发展速度越来越快,第四代通信技术已经逐渐成熟。为了节省基站的站址安装资源,减少网络建设成本,对宽频基站天线的研究显得至关重要。多阵列宽频双极化天线覆盖多个频段,性能优越,能够满足通信技术的需求。本论文主要研究了辐射单元、多阵列天线、内置合路器天线以及馈电网络。论文主要研究内容可概括为一下几个部分。天线辐射单元是天线的基础。本文设计了一种双极化低驻波高隔离度的宽频基站天线辐射单元。辐射单元基于互补性天线源原理进行设计,主要由正交放置的两对方形偶极子天线、圆形支撑座、双倒L型馈电线、反射板组成。既满足了方向图指标要求,也保证了电路参数驻波比和隔离度。使用HFSS电磁仿真软件对多阵列天线以及内置合路器天线进行了仿真设计,研究不同参数对其水平波宽、前后比以及交叉极化比的影响。使用AWR软件对天线指标进行优化,使实际天线指标达到稳定。馈电网络是天线重要的一部分,能与辐射单元共同保证天线性能。最后一章从理论分析了相控阵天线的原理,分别对功率分配器、移相器进行了简单的研究。再利用功分器、移相器设计一种新型馈电网络,完成波束赋形,使天线增益、旁瓣抑制等指标满足移动通信的要求。
[Abstract]:Base station antenna is one of the important components of mobile communication. In recent years, mobile communication is developing more and more quickly, 4th generation communication technology has been gradually mature. In order to save the base station site installation resources. Reducing the cost of network construction is very important to the research of broadband base station antenna. The multi-array broadband dual-polarization antenna covers multiple frequency bands and the performance is superior. Can meet the needs of communication technology. This paper mainly studies the radiation unit, multi-array antenna. Built-in combiner antenna and feed network. The main research contents of this paper can be summarized as follows. Antenna radiation unit is the basis of antenna. In this paper, a broadband base station antenna with dual polarization and low standing wave isolation is designed. Radiation units. The radiation units are designed based on the principle of complementary antenna sources. It is mainly composed of two pairs of square dipole antenna, circular support seat, double inverted L-type feed line and reflector, which meet the requirements of the pattern. The HFSS electromagnetic simulation software is used to simulate and design the multi-array antenna and the built-in combiner antenna, and the horizontal wave width of different parameters is studied. The AWR software is used to optimize the antenna index to make the antenna index stable. The feed network is an important part of the antenna. In the last chapter, the principle of phased array antenna is analyzed theoretically, and the power divider and phase shifter are studied simply. The phase shifter designs a new type of feed network, which completes the beamforming and makes the antenna gain and sidelobe suppression meet the requirements of mobile communication.
【学位授予单位】：武汉邮电科学研究院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN828.6

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