A reactance theorem
Abstract
A formula is derived for the frequency derivative of the input reactance of any linear passive time-invariant electromagnetic system. It consists of five terms, each of which is identifiable uniquely with one of the following five physical attributes of the system: time-average stored magnetic energy, time-average stored electric energy, radiation, dispersion by the medium, and dissipation by the medium.
- Publication:
-
Proceedings of the Royal Society of London Series A
- Pub Date:
- February 1977
- DOI:
- 10.1098/rspa.1977.0018
- Bibcode:
- 1977RSPSA.353....1R
- Keywords:
-
- Electromagnetic Wave Transmission;
- Linear Systems;
- Reactance;
- Electromagnetic Fields;
- Electromagnetic Properties;
- Electromagnetic Radiation;
- Energy Dissipation;
- Lossless Materials;
- Radiation Effects;
- Theorems;
- Wave Dispersion;
- Electronics and Electrical Engineering