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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.
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Keywords:
- time domain scattering /
- microstrip antenna /
- FDTD
[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 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 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 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 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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[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 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 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 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 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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