一種新型基站天線的非均勻網(wǎng)格FDTD分析
Analysis of a novel base stationi antenna with non-uniform FDTD
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摘要: 板狀振子型基站天線是一種現(xiàn)代移動(dòng)通信中廣泛使用的基站天線。為了比較準(zhǔn)確地對(duì)其天線單元和槽形板進(jìn)行建模,同時(shí)考慮到計(jì)算資源限制,該文應(yīng)用一種非均勻網(wǎng)格FDTD方法對(duì)其輻射方向圖特性進(jìn)行了分析。數(shù)值結(jié)果表明該文方法處理天線輻射問(wèn)題的有效性。
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關(guān)鍵詞:
- 基站天線; 非均勻網(wǎng)格FDTD; 方向圖
Abstract: The dipole antenna array with trough reflector is widely applied to base stations for mobile communications. In order to simulate the antenna units and the trough reflector accurately and take the limitation of computation resources into account, this paper employs a kind of non-uniform FDTD algorithm in analyzing the radiation pattern. The numerical results show the effectiveness of this algorithm for antenna problems. -
K.S. Yee , Numerical solution of initial boundary value problems involving Maxwells equations in isotropic media, IEEE Trans. on AP, 1966, 14(5), 302 307.[2]Jiang Huiling, Analysis of computation error in antennas simulation by using non-uniform mesh FDTD, IEICE Trans., E00-A, No.1 January 1998, 1-9.[3]R. Luebbers, L. Chen, T. Uno, S. Adachi, FDTD calculation of radiation patterns, impedance,and gain for monopole antenna on a conducting box, IEEE Trans. on AP, 1992, 40(11), 1577-1583.[4]汪茂光,幾何繞射理論,西安,西安電子科技大學(xué)出版社,1994,70-71.[5]Jian Peng, A. Balanis, NEC and ESP codes: Guidelines, limitations, and EMC applications,IEEE Trans. on EMC, 1993, 35(2), 124-133. -
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