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This paper presents the space-time characteristics of time reversed (TR) electromagnetic propagation. Theoretical formulations are deduced from wave equations in multiple-source or multiple-receiver environments. A conclusion that time reversal waveform can faultlessly focus in time and space domains is drawn from the detailed analysis. The finite-difference time-domain (FDTD) method is used to verify...
An unconditionally stable time-domain method with reduced grid size is proposed to deal with Maxwell's differential equations. The proposed method uses Yee's finite difference scheme in the space domain, and expands electromagnetic fields in a series of basis functions and treats them in a moment method procedure in the time domain. We use triangle basis functions and Galerkin's testing procedure...
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