微带阵列天线的时域散射特性

张雪芹; 王均宏; 李铮

doi:10.7498/aps.60.051301

摘要

本文用时域有限差分方法(FDTD)研究了微带阵列天线的时域散射场,分析了入射脉冲极化方向不同以及入射方向不同时的散射场的分布情况;讨论了时域散射场的时域波形以及频谱与微带阵列天线结构的关系;用散射场分离算法讨论了地板对于微带贴片阵列散射场的影响.研究发现,有限大地板的微带阵列天线的散射场主要是由地板的边沿电流产生的,同时微带贴片阵列的谐振频率与入射脉冲的极化方向有关,因此不同的极化方向对应于不同的散射频谱.

关键词:

时域散射 /
微带天线 /
FDTD

Abstract

In this paper, the scattering characteristics of microstrip antenna arrays in time domain are analyzed using finite-difference time domain (FDTD) method. The distributions of scattering field components, Eθ and Eφ, are studied when the polarization and incidence directions of the incident pulse vary. The relationship of time domain waveforms and spectra of the scattering field with the microstrip antenna array structure is analyzed. The effect of ground plane on the scattering field of microstrip patch array is investigated using the field separating approach. It was found that the scattering field of microstrip antenna array with finite ground plane is mainly generated by the edge current on the ground plane. The resonance frequency of microstrip patch array is associated with the polarization direction of the incident pulse, hence, different polarization directions correspond to different spectra of the scattering field.

Keywords:

作者及机构信息

(1)北京交通大学光波所,北京 100044; (2)防化研究院,北京 102205

基金项目: 国家自然科学基金(批准号:60825101) 资助的课题.

Authors and contacts

(1)Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China; (2)Research Institute of Chemical Defense, Beijing 102205, China

参考文献

[1]	Yang R, Xie Y J, Wang P, Yang T M 2007 Acta Phys. Sin. 56 4504 (in Chinese)[杨锐、谢拥军、王鹏、杨同敏 2007 物理学报 56 4504]
[2]	Wu M F, Meng F Y, Wu Q, Wu J 2006 Acta Phys. Sin. 55 6368 (in Chinese)[武明峰、孟繁义、吴群、吴健 2006 物理学报 55 6368]
[3]	Wu M F, Meng F Y, Wu Q, Wu J 2006 Acta Phys. Sin. 55 5790 (in Chinese)[武明峰、孟繁义、吴群、吴健 2006 物理学报 55 5790]
[4]	Zhu Z K, Luo C R, Zhao X P, 2009 Acta Phys. Sin. 58 6152 (in Chinese)[朱忠奎、罗春荣、赵晓鹏 2009 物理学报 58 6152]
[5]	Newman E H, Forrai D 1987 IEEE Transactions on Antennas and Propagation 35 245
[6]	Jackson D R 1990 IEEE Trans. 38 2
[7]	Rafi G Z, Moini R, Tavakoli A 1995 IEEE Trans. 38 303
[8]	Seaux J P, Reineix A, Jecko B, Hamelin J H 1991 IEEE Transactions on Electromagnetic Compatibility 33 224
[9]	Ilyinsky S, Ivakhnenko V I 1990 Proc. 20th European Microwave Conference Budapest 1990 p1487
[10]	Li Z R, Wang J H, Jiang K B, Luo L M 2007 Acta Electr. Sin. 35 1065(in Chinese)[李增瑞、王均宏、姜开波、罗莉梅 2007 电子学报 35 1065]
[11]	Ge D B, Yan Y B 2002 The Finite Difference Time Domain Method for Electromagnetic Waves 2 (Xi'an: Xi'dian Press) p15—17 (in Chinese) [葛德彪、闫玉波 2002 电磁场时域有限差分方法 (西安:西安电子科技大学出版社) 第15—17页]
[12]	Zhang X Q, Wang J H, Li Z R 2008 Chin. Phys. B 17 608

施引文献

[1]	Yang R, Xie Y J, Wang P, Yang T M 2007 Acta Phys. Sin. 56 4504 (in Chinese)[杨锐、谢拥军、王鹏、杨同敏 2007 物理学报 56 4504]
[2]	Wu M F, Meng F Y, Wu Q, Wu J 2006 Acta Phys. Sin. 55 6368 (in Chinese)[武明峰、孟繁义、吴群、吴健 2006 物理学报 55 6368]
[3]	Wu M F, Meng F Y, Wu Q, Wu J 2006 Acta Phys. Sin. 55 5790 (in Chinese)[武明峰、孟繁义、吴群、吴健 2006 物理学报 55 5790]
[4]	Zhu Z K, Luo C R, Zhao X P, 2009 Acta Phys. Sin. 58 6152 (in Chinese)[朱忠奎、罗春荣、赵晓鹏 2009 物理学报 58 6152]
[5]	Newman E H, Forrai D 1987 IEEE Transactions on Antennas and Propagation 35 245
[6]	Jackson D R 1990 IEEE Trans. 38 2
[7]	Rafi G Z, Moini R, Tavakoli A 1995 IEEE Trans. 38 303
[8]	Seaux J P, Reineix A, Jecko B, Hamelin J H 1991 IEEE Transactions on Electromagnetic Compatibility 33 224
[9]	Ilyinsky S, Ivakhnenko V I 1990 Proc. 20th European Microwave Conference Budapest 1990 p1487
[10]	Li Z R, Wang J H, Jiang K B, Luo L M 2007 Acta Electr. Sin. 35 1065(in Chinese)[李增瑞、王均宏、姜开波、罗莉梅 2007 电子学报 35 1065]
[11]	Ge D B, Yan Y B 2002 The Finite Difference Time Domain Method for Electromagnetic Waves 2 (Xi'an: Xi'dian Press) p15—17 (in Chinese) [葛德彪、闫玉波 2002 电磁场时域有限差分方法 (西安:西安电子科技大学出版社) 第15—17页]
[12]	Zhang X Q, Wang J H, Li Z R 2008 Chin. Phys. B 17 608

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