| 一种偶极子背馈的室内三频段微带贴片天线 |
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| 引用本文： | 李道铁,裴进明.一种偶极子背馈的室内三频段微带贴片天线[J].安徽机电学院学报,2009(1). |
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| 作者姓名： | 李道铁 裴进明 |
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| 作者单位： | 安徽工程科技学院电气工程系 |
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| 基金项目： | 安徽省高校自然科学研究重大项目(zd2007006-1));; 芜湖市科研基金资助项目(芜科计2006) |
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| 摘 要： | 提出一种新型偶极子背馈的室内三频段微带贴片天线.8片不同尺寸的金属贴片被对称置于一对λ/4平板宽带偶极子前侧的介质基片顶面.偶极子与基片被空气隙隔开,它通过两节平行等宽的λ/4导体条带阻抗变换器与50Ω同轴线相连,通过电磁耦合对贴片馈电.天线覆盖三个主要的移动通信频段CDMA/GSM900(820~975MHz,VSWR≤2.5),GSM1800/DCS/PCS/UMTS(1585~2060 MHz,VSWR≤2),和Bluetooth/WLAN/ISM(2.39~2.502 GHz,VSWR≤2).增益为5~10 dBi,-3 dB波束宽度在E面和H面均不小于60°.另外,该天线还有结构简单和低剖面的优点,适合室内无线通信.
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| 关 键 词： | 三频段微带贴片天线 宽带偶极子 λ/4阻抗变换器 电磁耦合 室内无线通信 |
A dipole back-fed tri-band indoor microstrip patch antenna |
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| LI Dao-tie; PEI Jin-ming.A dipole back-fed tri-band indoor microstrip patch antenna[J].Journal of Anhui Institute of Mechanical and Electrical Engineering,2009(1). |
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| Authors: | LI Dao-tie; PEI Jin-ming |
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| Affiliation: | LI Dao-tie; PEI Jin-ming(Elec.Engn.Dept.; Anhui University of Technology and Science; Wuhu 241000; China); |
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| Abstract: | A novel dipole back-fed tri-band indoor microstrip patch antenna is presented.8 patches of different dimensions are symmetrically arranged on the top side of a dielectric substrate.A λ/4 planar broadband dipole is separated by an air gap from the substrate and connected by a pair of λ/4 impedance transformers to coaxial cable(50Ω).These patches are fed by the dipole through electromagnetic coupling and mutual adjacent coupling among them.The antenna covers the three bands:CDMA/GSM900 DCS/PCS(820～975MHz,VSWR... |
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| Keywords: | microstrip patch antenna broadband dipole λ/4 impedance transformer electromagnetic coupling indoor wireless communication |
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