用于生物医学的天线与无线输能系统设计
发布时间:2019-06-06 05:55
【摘要】:无线电能传输技术(WPT)是近十年来所兴起的一种新型能量供给技术,可为植入式装置提供更好的能量供给方法。随着该技术在生物医学领域的逐步应用,它将会进一步推动医疗领域无创、低危险治疗的发展,具有重要的科学意义和研究价值。本文提出了一种应用于植入设备近场供电的新型WPT系统,该系统可以有效提高能量传输效率(PTE)。引入寄生贴片,植入天线的增益可以提高8dB。通过优化发射阵列天线与植入天线之间的PTE,发射阵列天线可以得到一组最优的激励分布。与具有等幅同相激励分布的WPT系统相比,优化的WPT系统的PTE值高出1.3倍。人们生活质量的提高促使以人体为中心的无线网络技术被广泛应用。为了实现多功能,可重构天线是这个技术中重要的一部分。本文提出了两款应用于人体无线通信的低剖面方向图可重构天线,它们均由一个短路环形贴片和一个圆形贴片组成。在2.45GHz的频率下,可以同时获得两种辐射模式,一种是体上通信的全向辐射模式,另一种是体外通信的定向辐射模式。
[Abstract]:Radio energy transmission technology (WPT) is a new energy supply technology rising in recent ten years, which can provide a better energy supply method for implantable devices. With the gradual application of this technology in biomedical field, it will further promote the development of non-invasive and low-risk treatment in medical field, and has important scientific significance and research value. In this paper, a new type of WPT system for near-field power supply of implantable equipment is proposed, which can effectively improve the efficiency of energy transmission (PTE). By introducing parasitic patch, the gain of embedded antenna can be increased by 8 dB. By optimizing the PTE, transmit array antenna between the transmit array antenna and the embedded antenna, a set of optimal excitation distribution can be obtained. Compared with the WPT system with equal amplitude and in-phase excitation distribution, the PTE value of the optimized WPT system is 1.3 times higher than that of the optimized PTE system. With the improvement of people's quality of life, human-centered wireless network technology has been widely used. In order to achieve multi-function, reconfigurable antenna is an important part of this technology. In this paper, two low profile pattern reconfigurable antennas for human wireless communication are proposed, which are composed of a short circuit ring patch and a circular patch. At the frequency of 2.45GHz, two radiation modes can be obtained at the same time, one is the omnidirectional radiation mode of body communication, the other is the directional radiation mode of in vitro communication.
【学位授予单位】:南京信息工程大学
【学位级别】:硕士
【学位授予年份】:2017
【分类号】:TN820
本文编号:2494116
[Abstract]:Radio energy transmission technology (WPT) is a new energy supply technology rising in recent ten years, which can provide a better energy supply method for implantable devices. With the gradual application of this technology in biomedical field, it will further promote the development of non-invasive and low-risk treatment in medical field, and has important scientific significance and research value. In this paper, a new type of WPT system for near-field power supply of implantable equipment is proposed, which can effectively improve the efficiency of energy transmission (PTE). By introducing parasitic patch, the gain of embedded antenna can be increased by 8 dB. By optimizing the PTE, transmit array antenna between the transmit array antenna and the embedded antenna, a set of optimal excitation distribution can be obtained. Compared with the WPT system with equal amplitude and in-phase excitation distribution, the PTE value of the optimized WPT system is 1.3 times higher than that of the optimized PTE system. With the improvement of people's quality of life, human-centered wireless network technology has been widely used. In order to achieve multi-function, reconfigurable antenna is an important part of this technology. In this paper, two low profile pattern reconfigurable antennas for human wireless communication are proposed, which are composed of a short circuit ring patch and a circular patch. At the frequency of 2.45GHz, two radiation modes can be obtained at the same time, one is the omnidirectional radiation mode of body communication, the other is the directional radiation mode of in vitro communication.
【学位授予单位】:南京信息工程大学
【学位级别】:硕士
【学位授予年份】:2017
【分类号】:TN820
【参考文献】
相关期刊论文 前3条
1 公茂进;;微带贴片天线的分析方法[J];移动通信;2008年24期
2 王安国;张佳杰;王鹏;侯永宏;;可重构天线的研究现状与发展趋势[J];电波科学学报;2008年05期
3 伍刚;张小平;;基于腔模理论对圆形微带天线的研究[J];微计算机信息;2007年09期
相关硕士学位论文 前4条
1 单龙;微带阵列天线的优化设计[D];南京信息工程大学;2014年
2 邱继刚;相控微带天线阵馈电网络的研究[D];大连交通大学;2011年
3 高嵬;毫米波微带阵列天线研究[D];电子科技大学;2007年
4 陶发;植入式生物遥测装置无线电能传输系统研究[D];南京航空航天大学;2005年
,本文编号:2494116
本文链接:https://www.wllwen.com/kejilunwen/xinxigongchenglunwen/2494116.html