Electromagnetic Scattering from Obstacles in the Near Field Region of Electrically Large Arrays

Date

2009-09-18

Author

Cetin, Ramazan
Aydın Çivi, Hatice Özlem
Nepa, Paolo
Manara, Giuliano

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In this paper, an efficient method for the analysis of electromagnetic scattering/radiation from the obstacles nearby electrically large array antennas, with nonuniform excitation, is proposed. The approach is based on the combination of a ray field representation of electrically large arrays and a DFT (Discrete Fourier Transform) based representation of array current distribution. Proposed method is applied to a 2D problem: Radiation of a linear array of 2N+1 infinitely long current elements with tapered current distribution in the presence of an infinitely long PEC (Perfect Electric Conductor) cylinder. Accuracy and efficiency of the method is discussed by numerical examples.

Subject Keywords

Moment method

URI

https://hdl.handle.net/11511/54233

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Department of Electrical and Electronics Engineering, Conference / Seminar

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Citation Formats

R. Cetin, H. Ö. Aydın Çivi, P. Nepa, and G. Manara, “Electromagnetic Scattering from Obstacles in the Near Field Region of Electrically Large Arrays,” 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/54233.