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Time-Domain Electromagnetic Fields Radiating Along the Horizontal Interface Between Vertically Uniaxial Half-Space Media

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2 Author(s)
Won-seok Lihh ; Global Commun. Technol. (GCT) Res., Inc, Seoul ; Sangwook Nam

At the horizontal interface between vertically uniaxial half-space media, the propagation of electromagnetic fields is theoretically investigated for an interfacial impulse current source of infinitesimal size. For the electric field, the problem divides into the horizontal source and horizontal receiver (HH), vertical source and vertical receiver (VV), horizontal source and vertical receiver (HV), and vertical source and horizontal receiver (VH) cases. Employing the interface scheme of the Cagniard-style analysis, the solutions of the HH and VV cases are obtained in exact explicit forms. The solutions of the HV and VH cases cannot be expressed in integral-free forms, but the impulse components implicit in the integral solutions can be analytically extracted without the aid of the frequency-domain asymptotic techniques. Investigation is also made of the magnetic field and of the variation of waveforms when the receiver is taken a little off the interface. The uniaxial case is a generalization of the isotropic case, affording richer information of the wave physics

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Antennas and Propagation, IEEE Transactions on  (Volume:55 ,  Issue: 5 )