Articles | Volume 3
Adv. Radio Sci., 3, 91–97, 2005
https://doi.org/10.5194/ars-3-91-2005
Adv. Radio Sci., 3, 91–97, 2005
https://doi.org/10.5194/ars-3-91-2005

  12 May 2005

12 May 2005

Reciprocity and mutual impedance formulas within lossy cavities

F. Gronwald and E. Blume F. Gronwald and E. Blume
  • Institute for Fundamental Electrical Engineering and EMC, Otto-von-Guericke-University Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany

Abstract. We discuss the validity of reciprocity and mutual impedance formulas within lossy cavities. Mutual impedance formulas are well-known from antenna theory and useful to describe the electromagnetic coupling between electromagnetic interference sources and victims. As an example the mutual impedance between two dipole antennas within a lossy rectangular cavity is calculated from a system of coupled Hallén's equations that efficiently is solved by the method of moments.