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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2013-01-31
An FFT-Based Approach in Acceleration of Discrete Green's Function Method for Antenna Analysis
By
Salma Mirhadi,

    Dr. Salma Mirhadi

    Department of Electrical Engineering

    Iran University of Science and Technology

    Iran

    Homepage

Mohammad Soleimani,

    Dr. Mohammad Soleimani

    Department of Electrical Engineering

    Iran University of Science and Technology

    Iran

    Homepage

Ali Abdolali

    Dr. Ali Abdolali

    Department of Electrical Engineering

    Iran University of Science and Technology

    Iran

    Homepage

Progress In Electromagnetics Research M, Vol. 29, 17-28, 2013
doi:10.2528/PIERM12121407 | Google Scholar

Abstract
In this paper, the fast Fourier transform (FFT) to perform spatial convolutions of the time domain discrete Green's functions (DGF) method related to the analysis of the antenna with more than one dimension has been proposed. For this aim, the discrete Green's functions and the currents on the antenna have been appropriately defined periodic so as to use the zero padded fast Fourier transform. The computational complexity of this approach is O(NwNxNyNz log(NxNyNz)), contrary to O(NwNx2Ny2Nz2)for direct implementation of the convolutions. Simulation results demonstrate the great efficiency of the FFTbased spatial convolutions in the modeling of planar antennas.
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Citation
Salma Mirhadi, Mohammad Soleimani, and Ali Abdolali, "An FFT-Based Approach in Acceleration of Discrete Green's Function Method for Antenna Analysis," Progress In Electromagnetics Research M, Vol. 29, 17-28, 2013.
doi:10.2528/PIERM12121407
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