一種高效均勻復(fù)合型菲涅爾透鏡設(shè)計
發(fā)布時間:2018-07-25 06:17
【摘要】:針對可見光通信系統(tǒng)中菲涅爾透鏡天線無法兼顧高聚光效率和均勻性的問題,設(shè)計了一款復(fù)合型菲涅爾透鏡。通過采用分區(qū)法將透鏡分成內(nèi)環(huán)區(qū)和外環(huán)區(qū),提高了菲涅爾透鏡的聚光效率,并結(jié)合分布式焦點(diǎn)法對透鏡結(jié)構(gòu)進(jìn)行優(yōu)化,改善了聚光光斑能量均勻性。仿真結(jié)果表明,該復(fù)合型菲涅爾透鏡實現(xiàn)了高聚光效率下的能量均勻分布,適用于高增益、短焦距和小視場角的可見光通信系統(tǒng)。
[Abstract]:Aiming at the problem that Fresnel lens antenna in visible light communication system can not take into account the high concentration efficiency and uniformity, a composite Fresnel lens is designed. By dividing the lens into inner ring and outer ring, the efficiency of Fresnel lens is improved, and the structure of Fresnel lens is optimized by using the distributed focus method, and the energy uniformity of the focal spot is improved. The simulation results show that the hybrid Fresnel lens can achieve uniform energy distribution at high concentration efficiency, and is suitable for visible light communication systems with high gain, short focal length and small field of view angle.
【作者單位】: 重慶郵電大學(xué)光電工程學(xué)院;
【基金】:重慶市科委項目(cstc2014zktjccx BX0074)資助
【分類號】:TN929.1
本文編號:2142895
[Abstract]:Aiming at the problem that Fresnel lens antenna in visible light communication system can not take into account the high concentration efficiency and uniformity, a composite Fresnel lens is designed. By dividing the lens into inner ring and outer ring, the efficiency of Fresnel lens is improved, and the structure of Fresnel lens is optimized by using the distributed focus method, and the energy uniformity of the focal spot is improved. The simulation results show that the hybrid Fresnel lens can achieve uniform energy distribution at high concentration efficiency, and is suitable for visible light communication systems with high gain, short focal length and small field of view angle.
【作者單位】: 重慶郵電大學(xué)光電工程學(xué)院;
【基金】:重慶市科委項目(cstc2014zktjccx BX0074)資助
【分類號】:TN929.1
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1 劉浩杰;基于LED室內(nèi)可見光通信收發(fā)天線若干關(guān)鍵問題研究[D];北京理工大學(xué);2015年
2 尹田田;應(yīng)用于水下光通信的菲涅爾透鏡研究[D];哈爾濱工業(yè)大學(xué);2014年
3 李湘;基于LED的室內(nèi)可見光通信菲涅爾光學(xué)接收天線的研究[D];北京理工大學(xué);2015年
,本文編號:2142895
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