超宽带天线及其陷波特征的研究与设计

发布时间：2018-07-01 16:14

本文选题：超宽带天线 + 陷波特征　；参考：《曲阜师范大学》2015年硕士论文

【摘要】：超宽带技术作为无线通信技术的重要组成部分,它被真正的使用是从二十世纪六十年代开始的,最初它被用于雷达探测,但在此后的一段时间内宽带技术发展较为缓慢。后来因为其高传输速率、保密性好、高增益、低功耗等原因,它成为国内外学者研究和讨论热点。在已经规定的超宽带频段内还存在WiMAX(3.35 3.75GHz)、WLAN(5.725 5.85GHz)以及X波段卫星系统的干扰,为了排除这些频段的干扰人们开始对陷波天线的研究。论文首先介绍超宽带系统的一些理论基础以及超宽带天线的主要性能参数,如增益、回波损耗、电压驻波比等。其次论文设计了两款超宽带天线,圆形缝隙微带天线和微带馈电超宽带天线。运用仿真软件对天线的某些参数进行仿真,进一步分析优化最后得出最佳尺寸。这两款天线在各个性能方面较为优良,满足超宽带天线的工程要求。然后又设计了两款单陷波的超宽带天线,陷波频率范围选为5.15 5.85GHz,运行仿真后天线的各项性能优良,满足陷波要求。此外还介绍一款双陷波超宽带天线,陷波频段范围选为3.35 3.75GHz和5.15 5.85GHz。最后设计的一款具有三陷波特征的天线,它在3.35 3.75GHz、5.15 5.85GHz、7.25 7.75GHz形成陷波,排除了这些频段对于超宽带通信系统的干扰。具有较大的实用价值。超宽带技术在将来会成为短距离高速率无线通信技术的最佳选择,而超宽带天线是超宽带通信系统用来发射和接收信号的关键器件。因此,超宽带天线的研究与设计具有相当大的研究潜力。
[Abstract]:Ultra-wideband (UWB) technology, as an important part of wireless communication technology, has been used since 1960s. At first, it was used in radar detection, but the development of broadband technology has been slow for some time since then. Later, because of its high transmission rate, high security, high gain, low power consumption and other reasons, it has become a hot topic of research and discussion at home and abroad. WiMAX (3.35 ~ 3.75 GHz) and X-band satellite system interference also exist in the prescribed UWB band. In order to eliminate the interference in these bands, people began to study the notch antenna. In this paper, the theoretical basis of UWB system and the main performance parameters of UWB antenna, such as gain, return loss, VSWR and so on, are introduced. Secondly, two UWB antennas, circular slot microstrip antenna and microstrip fed UWB antenna are designed. Some parameters of antenna are simulated by simulation software, and the optimum size is obtained by further analysis and optimization. These two antennas are excellent in various aspects and meet the engineering requirements of UWB antennas. Then, two UWB antennas with single notch wave are designed. The notch frequency range is 5.15 ~ 5.85 GHz. The simulated antenna has excellent performance and meets the requirements of notch wave. In addition, a dual-notch ultra-wideband antenna is introduced. The notch band ranges from 3.35 to 3.75 GHz and from 5.15 to 5.85 GHz. Finally, a three-notch antenna is designed, which forms a notch at 3.35 ~ 3.75 GHz ~ 5.15 ~ 5.85 GHz ~ 7.25 ~ 7.75 GHz, which eliminates the interference of these bands to UWB communication systems. It has great practical value. Ultra-wideband (UWB) technology will be the best choice for short-range and high-rate wireless communication technology in the future. UWB antenna is the key device for UWB communication system to transmit and receive signals. Therefore, the research and design of UWB antenna has great potential.
【学位授予单位】：曲阜师范大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN822.8

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