A Parallel Implementation for the Time-Domain Analysis of a Rectangular Reflector Antenna Using OpenMP

─ This paper presents and evaluates a parallel time domain analysis of a rectangular reflector on multicores machine. Rectangular reflector antennas have motivated the time-domain analysis of electromagnetic scattering problems. The asymptotic time domain physical-optics (TDPO) is applied to the analysis of a rectangular reflector illuminated by a Gaussian-impulse. It is a numerical technique used in computational electrodynamics. The effects of time-delayed mutual coupling between points on the surface will be ignored to avoid the numerical limitations found in other conventional time-domain techniques such as interpolation error, numerical dispersion error, etc. As a result, the scattered signals at the specular reflection point, at the edges, and at the corners can be clearly distinguished. Furthermore, this paper evaluates and compares the performance of the sequential time-domain analysis against the parallel time-domain analysis on multicores machine. Index Terms ─ Electromagnetic scattering, parallel computing, rectangular reflector, time domain.

[1]  E. Kennaugh,et al.  The use of impulse response in electromagnetic scattering problems , 1958 .

[2]  Pradeep Dubey,et al.  Debunking the 100X GPU vs. CPU myth: an evaluation of throughput computing on CPU and GPU , 2010, ISCA.

[3]  R. Harrington.  Time-Harmonic Electromagnetic Fields , 1961 .

[4]  Prabhakar H. Pathak,et al.  Time-domain uniform geometrical theory of diffraction for a curved wedge , 1995 .

[5]  E. Kennaugh,et al.  Transient and impulse response approximations , 1965 .

[6]  J. Swinburne.  Electromagnetic Theory , 1894, Nature.

[7]  W.V.T. Rusch,et al.  Time-domain physical-optics , 1994 .

[8]  Raj Mittra,et al.  Computer techniques for electromagnetics , 1973 .

[9]  Mustafa Kuzuoglu,et al.  COMPUTATION OF PHYSICAL OPTICS INTEGRAL BY LEVIN'S INTEGRATION ALGORITHM , 2009 .

[10]  C. Baum,et al.  Impulse Radiating Antennas , 1993 .

[11]  P. A. Tirkas,et al.  Finite-difference time-domain method for antenna radiation , 1992 .

[12]  J. Asvestas.  The physical optics method in electromagnetic scattering , 1980 .

[13]  T. Cwik,et al.  A Simple Physical Optics Algorithm Perfect for Parallel Computing , 1993 .

[14]  Melinda Piket-May,et al.  9 – Computational Electromagnetics: The Finite-Difference Time-Domain Method , 2005 .

[15]  Raj Mittra,et al.  A New Direction in Computational Electromagnetics: Solving Large Problems Using the Parallel FDTD on the BlueGene/L Supercomputer Providing Teraflop-Level Performance , 2008, IEEE Antennas and Propagation Magazine.

[16]  P. D. Patter,et al.  Analysis of Reflector Antennas , 2013 .

[17]  Raj Mittra,et al.  Performance analysis of parallel FDTD algorithm on different hardware platforms , 2009, 2009 IEEE Antennas and Propagation Society International Symposium.

[18]  Barbara M. Chapman,et al.  Performance modeling of communication and computation in hybrid MPI and OpenMP applications , 2006, 12th International Conference on Parallel and Distributed Systems - (ICPADS'06).

[19]  Wenhua. Wenhua Yu ... . Yu,et al.  Parallel Finite-Difference Time-Domain Method , 2006 .

[20]  David Kaeli,et al.  Introduction to Parallel Programming , 2013 .