Near-field diffraction pattern by an underground void of circular cylinder
作者： Taek-Kyung Lee , Seong-Ook Park , Jung-Woong Ra , Se-Yun Kim
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摘要: Amplitude patterns of the electromagnetic field scattered by a circular air cylinder embedded in dielectric medium are analyzed. Twenty five decibel double dip measured scale-down experiment presented. Theoretical analysis shows that these dips become nulls near-field region. This phenomenon is useful locating high-contrast geological anomalies.
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