新一代無線移動通信中的微基站天線技術(shù)研究
發(fā)布時間：2018-08-08 13:36
【摘要】：隨著3G的全球商用普及、4G規(guī)模部署的開始,微基站在現(xiàn)代無線通信系統(tǒng)中的地位越來越受到重視。微基站具有體積小、易安裝、易維護(hù)的優(yōu)點,可以從基站選址、環(huán)境保護(hù)、網(wǎng)絡(luò)覆蓋等方面彌補(bǔ)傳統(tǒng)宏基站的不足。然而,微基站的體積過小,使得作為微基站核心設(shè)備之一的天線必須具備優(yōu)良的性能。在微基站中,對天線的小型化、寬帶化要求愈發(fā)的高,端口隔離度也難以獲得明顯提升。微帶天線和印刷偶極子天線由于具備低成本、易集成、質(zhì)量輕的特點,常常成為了微基站天線的首選。本文主要從小型化、寬頻帶、高隔離度的角度研究了幾種用于微基站的微帶天線和印刷偶極子天線,論文的主要工作或創(chuàng)新點如下:首先,本文前兩章介紹了課題的研究背景、回顧了微基站天線相關(guān)技術(shù)的發(fā)展動態(tài),并針對雙極化天線相關(guān)理論進(jìn)行概述。其次,第三章給出了一種新型的雙極化雙E型貼片天線單元的設(shè)計,詳細(xì)給出了它的設(shè)計過程及性能分析。該天線單元具有低剖面、高隔離度的特點。第三,針對LTE微基站的實用需求,本文在第四章中將上述天線單元進(jìn)一步組陣,設(shè)計出了一款1×2天線單元和一款2×4天線陣列,并且通過仿真優(yōu)化評估了性能。所設(shè)計出的天線陣列可以應(yīng)用于LTE微基站系統(tǒng)中。第四,本文在第五章中介紹了全雙工的相關(guān)知識與應(yīng)用于全雙系統(tǒng)的天線的技術(shù)難點,并設(shè)計出了一款新型的采用磁耦合環(huán)饋電的雙極化微帶天線單元。在該天線單元基礎(chǔ)上進(jìn)一步設(shè)計出了一款1×2天線陣。該陣列通過引入一種新型的漸變型接地金屬條陣的結(jié)構(gòu)極大地提升了天線單元之間的同極化端口隔離度。仿真及實測結(jié)果表明該天線陣列具有超高隔離度特性,能夠應(yīng)用于全雙工系統(tǒng)。最后,本文在第六章中提出了一款新型的線極化偶極子天線,并詳細(xì)分析了該天線的結(jié)構(gòu)與工作原理。該線極化偶極子天線具備比一般經(jīng)典偶極子天線更小尺寸的優(yōu)點。在此基礎(chǔ)上進(jìn)一步設(shè)計出了一款雙極化偶極子天線,該雙極化天線具有小型化、寬頻帶、高隔離度的性能,可以應(yīng)用于IMT-Advanced系統(tǒng)。
[Abstract]:With the beginning of 3G commercial universal 4G scale deployment, the status of microbase stations in modern wireless communication systems has been paid more and more attention. Micro-base station has the advantages of small size, easy to install and easy to maintain. It can make up for the shortcomings of the traditional macro base station from the base station location, environmental protection, network coverage and so on. However, the size of the microbase station is too small, so the antenna, as one of the core devices of the microbase station, must have excellent performance. In microbase stations, the requirement of antenna miniaturization and wideband becomes more and more high, and the isolation of ports is difficult to improve. Microstrip antenna and printed dipole antenna have become the first choice of microbase station antenna due to their advantages of low cost, easy integration and light mass. In this paper, several microstrip antennas and printed dipole antennas for microbase stations are studied from the point of view of miniaturization, wide band and high isolation. The main work and innovations are as follows: firstly, the research background of this thesis is introduced in the first two chapters. The development of microbase station antenna correlation technology is reviewed, and the related theory of dual polarization antenna is summarized. Secondly, in chapter 3, the design of a new dual-polarization dual-E patch antenna unit is presented, and its design process and performance analysis are given in detail. The antenna unit has the characteristics of low profile and high isolation. Thirdly, according to the practical requirement of LTE microbase station, in chapter 4, we design a 1 脳 2 antenna unit and a 2 脳 4 antenna array, and evaluate the performance by simulation. The designed antenna array can be used in LTE microbase station system. Fourth, in chapter 5, we introduce the knowledge of full duplex and the technical difficulties of antenna used in full duplex system, and design a novel dual-polarization microstrip antenna unit with magnetically coupled loop feed. A 1 脳 2 antenna array is further designed on the basis of the antenna element. This array greatly improves the isolation of the same polarization ports between antenna elements by introducing a new structure of a new gradual grounding metal bar array. The simulation and experimental results show that the antenna array has high isolation and can be used in full duplex system. Finally, in chapter 6, a novel linear polarization dipole antenna is proposed, and its structure and working principle are analyzed in detail. The linear polarization dipole antenna has the advantage of smaller size than the classical dipole antenna. On this basis, a dual-polarization dipole antenna is designed, which can be used in IMT-Advanced system because of its miniaturization, wide band and high isolation.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN828.6
本文編號：2171945
[Abstract]:With the beginning of 3G commercial universal 4G scale deployment, the status of microbase stations in modern wireless communication systems has been paid more and more attention. Micro-base station has the advantages of small size, easy to install and easy to maintain. It can make up for the shortcomings of the traditional macro base station from the base station location, environmental protection, network coverage and so on. However, the size of the microbase station is too small, so the antenna, as one of the core devices of the microbase station, must have excellent performance. In microbase stations, the requirement of antenna miniaturization and wideband becomes more and more high, and the isolation of ports is difficult to improve. Microstrip antenna and printed dipole antenna have become the first choice of microbase station antenna due to their advantages of low cost, easy integration and light mass. In this paper, several microstrip antennas and printed dipole antennas for microbase stations are studied from the point of view of miniaturization, wide band and high isolation. The main work and innovations are as follows: firstly, the research background of this thesis is introduced in the first two chapters. The development of microbase station antenna correlation technology is reviewed, and the related theory of dual polarization antenna is summarized. Secondly, in chapter 3, the design of a new dual-polarization dual-E patch antenna unit is presented, and its design process and performance analysis are given in detail. The antenna unit has the characteristics of low profile and high isolation. Thirdly, according to the practical requirement of LTE microbase station, in chapter 4, we design a 1 脳 2 antenna unit and a 2 脳 4 antenna array, and evaluate the performance by simulation. The designed antenna array can be used in LTE microbase station system. Fourth, in chapter 5, we introduce the knowledge of full duplex and the technical difficulties of antenna used in full duplex system, and design a novel dual-polarization microstrip antenna unit with magnetically coupled loop feed. A 1 脳 2 antenna array is further designed on the basis of the antenna element. This array greatly improves the isolation of the same polarization ports between antenna elements by introducing a new structure of a new gradual grounding metal bar array. The simulation and experimental results show that the antenna array has high isolation and can be used in full duplex system. Finally, in chapter 6, a novel linear polarization dipole antenna is proposed, and its structure and working principle are analyzed in detail. The linear polarization dipole antenna has the advantage of smaller size than the classical dipole antenna. On this basis, a dual-polarization dipole antenna is designed, which can be used in IMT-Advanced system because of its miniaturization, wide band and high isolation.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN828.6
【參考文獻(xiàn)】
相關(guān)期刊論文 前2條
1 石長生;談天線隔離度[J];電子科技導(dǎo)報;1997年11期
2 王效軍;雙極化天線在移動電話基站中的應(yīng)用[J];廣西通信技術(shù);1999年03期
相關(guān)碩士學(xué)位論文 前1條
1 李冰;寬帶基站天線小型化技術(shù)研究[D];電子科技大學(xué);2013年
，本文編號：2171945
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