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新型层叠短接式微带蓝牙天线的仿真分析

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新型层叠短接式微带蓝牙天线的仿真分析

内容简介:为适应快速发展的蓝牙无线通信技术的要求,设计了新型层叠短接式微机械蓝牙天线,其10dB带宽达到了11%以上,辐射效率为68%,天线长度小于1/7 λ.首次将三维ADI-FDTD(the alternating direction implicit finite-difference time-domain)全波分析方法应用于该天线的建模和分析,数值模拟结果表明在计算域内网格尺寸相对于其它处网格尺寸或波长小得多的条件下,三维ADI-FDTD时域全波分析方法能更有效地模拟微机械微带蓝牙天线,并能有效地减少CPU计算时间.

Abstract:For the rapid development of bluetooth wireless communication, a novel stack-shorted micromachined bluetooth antenna was designed with a 10 dB bandwidth of more than 11% and an efficiency of more than 68%, respectively, the length is less than 1/7 wavelength. The alternating direction implicit finite-difference time-domain (ADI-FDTD) method for a full three-dimensional (3-D) wave is used for modeling and analyzing the antenna for the first time. Numerical simulation results manifest that the ADI-FDTD method is more efficient than the conventional 3-D FDTD method in terms of the central processing unit time if the size of the local minimum cell in the computational domain is much smaller than those of cells or the wavelength. It can efficiently reduce the CPU time.

作者:余文革, 钟先信, 巫正中, 李晓毅,

关键词:蓝牙, ADI-FDTD 方法, FDTD 方法, 微带天线, 微电子机械系统,

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