Details

Autor(en) / Beteiligte

• Sanmartin, J R
• Martinez-Sanchez, M

Titel

The radiation impedance of orbiting conductors

Ist Teil von

• Journal of Geophysical Research, 1995-02, Vol.100 (A2), p.1677-1686

Ort / Verlag

Washington, DC: Blackwell Publishing Ltd

Erscheinungsjahr

1995

Link zum Volltext

Beschreibungen/Notizen

• The dispersion relation for waves in a cold, magnetized plasma is discussed using the potential for the longitudinal part of the electric field. This clarifies wave emission from a conductor in low Earth orbit and should be useful in considering the far field and both hot plasma and nonlinear, near‐field effects. General formulas for radiation impedance are directly obtained. For tethers a fundamental dependence on contactor size is discussed. Spherical and ellipsoidal contactors and an (anodeless) bare tether are considered. Simple arguments on nonlinear contactor effects lead to a surprisingly simple result for impedances off the Alfvén branch.