Title :
Impedance of a short horizontal dipole over a ground plane covered with an anisotropic plasma
Author :
Matin, Md. ; Mushiake, Yasuto ; Ishizone, Takayuki ; Sawaya, Kunio
Author_Institution :
Tohoku University, Sendai, Japan
fDate :
7/1/1981 12:00:00 AM
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.
Keywords :
Dipole antennas; Electromagnetic scattering by plasma media; Elevated antennas; Anisotropic magnetoresistance; Dipole antennas; Education; Electromagnetic radiation; Electromagnetic scattering; Impedance; Magnetic fields; Plasma properties; Plasma sources; Reflection;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.1981.1142626