用于生物醫(yī)學(xué)的天線與無線輸能系統(tǒng)設(shè)計
發(fā)布時間:2019-06-06 05:55
【摘要】:無線電能傳輸技術(shù)(WPT)是近十年來所興起的一種新型能量供給技術(shù),可為植入式裝置提供更好的能量供給方法。隨著該技術(shù)在生物醫(yī)學(xué)領(lǐng)域的逐步應(yīng)用,它將會進(jìn)一步推動醫(yī)療領(lǐng)域無創(chuàng)、低危險治療的發(fā)展,具有重要的科學(xué)意義和研究價值。本文提出了一種應(yīng)用于植入設(shè)備近場供電的新型WPT系統(tǒng),該系統(tǒng)可以有效提高能量傳輸效率(PTE)。引入寄生貼片,植入天線的增益可以提高8dB。通過優(yōu)化發(fā)射陣列天線與植入天線之間的PTE,發(fā)射陣列天線可以得到一組最優(yōu)的激勵分布。與具有等幅同相激勵分布的WPT系統(tǒng)相比,優(yōu)化的WPT系統(tǒng)的PTE值高出1.3倍。人們生活質(zhì)量的提高促使以人體為中心的無線網(wǎng)絡(luò)技術(shù)被廣泛應(yīng)用。為了實現(xiàn)多功能,可重構(gòu)天線是這個技術(shù)中重要的一部分。本文提出了兩款應(yīng)用于人體無線通信的低剖面方向圖可重構(gòu)天線,它們均由一個短路環(huán)形貼片和一個圓形貼片組成。在2.45GHz的頻率下,可以同時獲得兩種輻射模式,一種是體上通信的全向輻射模式,另一種是體外通信的定向輻射模式。
[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.
【學(xué)位授予單位】:南京信息工程大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TN820
本文編號: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.
【學(xué)位授予單位】:南京信息工程大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TN820
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,本文編號:2494116
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