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An application of a reflector for increase of the radiation efficiency of cellular telephone antennas

机译:反射器在提高蜂窝电话天线辐射效率中的应用

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A reflector placed near a cellular telephone antenna is proposed to increase its radiation efficiency. In this study, a half wavelength dipole antenna at 900 MHz is treated as a cellular telephone model and a small plate reflector is placed between the antenna and a human head-sized phantom model. By using the finite-difference time-domain (FDTD) method, various kinds of materials, such as a dielectric material, a magnetic material, and a conductive material, are investigated for the reflector composition. Among them, a magnetic reflector having high μ and low μ (complex relative permeability: μ−jμ) is shown to be effective for increasing the radiation efficiency.© 2000 John Wiley & Sons, Inc. Int J RF and Microwave CAE 10: 253–263, 2000.
机译:提出了一种放置在蜂窝电话天线附近的反射器,以提高其辐射效率。在这项研究中,将900 MHz的半波长偶极天线视为蜂窝电话模型,并在天线和人头大小的幻象模型之间放置了一块小板状反射器。通过使用时域有限差分法(FDTD),研究了各种材料,例如电介质材料,磁性材料和导电材料,作为反射镜的组成。其中,具有高μ和低μ(复数相对磁导率:μjj)的磁反射器可有效提高辐射效率。©2000 John Wiley&Sons,Inc. Int J RF和Microwave CAE 10:253 –263,2000。

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