Impedance of a short horizontal dipole over a ground plane covered with an anisotropic plasma |
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Authors: | Matin Md Mushiake Y Ishizone T Sawaya K |
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Affiliation: | Tohoku University, Sendai, Japan; |
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Abstract: | Impedance of a short dipole antenna placed parallel over a ground plane covered with an anisotropic plasma has been studied by the quasistatic approximation with emphasis on the effects of image displacement for arbitrary inclinations of the static magnetic field. As the image location can move with the operating frequencies, the reflected characteristic conical surfaces can create oblique resonance anomalies, depending upon source dimensions and source location. While an oblique resonance occurs when the characteristic conical surface coincides with the dipole axis, another anomaly occurs when the reflected cone grazes the dipole ends. |
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