6. Conclusion

Matter which may be added at this article dealing with elements about the transmission lines theory, may be related with four fundamental problems, as briefly summarized here after.

One first problem is to characterize the transmission lines connected at nonlinear loads, like a diode, or more generally at resistor which changes with a duty cycle of specified time period. According to the first configuration, the problem is to determine how behaves the TL at wave quarter resonance frequency. For the second, it’s to determine currents and voltages spectra when the TL is fed with a DC voltage source. From the electromagnetic compatibility point of view, such problems are related to the evaluation of currents and voltages interferences spectra as resulting of use of energy invertors on the power grid. But also, to known how induction of high frequences up few GHz on...