基于反f天线吸收边界条件的FDTD分析比较

2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2018-12-01 DOI:10.1109/ISAPE.2018.8634295

Lei Li

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引用次数: 0

摘要

本文用时域有限差分法(FDTD)对平面倒f天线进行了吸收边界条件(ABC)分析。为了比较吸收边界条件在吸收倏逝波时的效果，提出了FDTD法的两种吸收边界条件算法，即常规完美匹配层(PML)吸收边界条件和卷积完美匹配层(CPML)吸收边界条件。基于MATLAB编程语言，实现了时域有限差分法。利用Ansoft高频结构模拟器(HFSS)软件对天线进行了仿真，仿真结果与理论CPML分析吻合较好。天线尺寸为($10.48\ × 16\ × 0.847$) mm3，谐振频率为(2.23 ~ 5.89)GHz，覆盖c通信频段。倒f天线显示全向辐射方向图和良好的峰值增益。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Comparasion of FDTD Analysis With Absorbing Boundary Condition Based on Inverted-F Antenna

Planar inverted-F antenna analysed using the finite difference time domain (FDTD) method with absorbing boundary condition (ABC) are demonstrated in this thesis. To compare the effective of absorbing boundary condition at absorbing evanescent wave, two kinds of absorbing boundary conditions algorithm of the FDTD method are presented, which are convention perfectly matched layer (PML) absorbing boundary conditions and convolutional Perfectly Matched Layer (CPML) absorbing boundary condition. Based upon the programming language of MATLAB, the FDTD method is realized. The antenna is simulated using Ansoft High Frequency Structure Simulator (HFSS) software, The simulation results agree fairly well with theoretical CPML analysis. The dimension of proposed antenna is ($10.48\times 16\times 0.847$) mm3 and its resonated at (2.23-5.89) GHz which cover the C-communication frequency band. Inverted-F antenna display omnidirectional radiation pattern and good peak gains across the operation bands.

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2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)

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