I am interested in simulating resonant wireless power transfer circuits similar to the ones developed by MIT and others. So far, I have been able to successfully create a basic simulation model of a set of resonantly coupled inductors with a k of 0.1 or less. However, I'm interested in exploring the behavior of the system at high frequencies where the distance between coils becomes a significant fraction of the transmission wavelength.
When I say significant, I mean within a quarter wavelength, as I am still interested in near-field coupling. However, even within this regime, I am interested in exploring the effects that the propagation/phase delay of the field from the receiver has on the transmitter.
Is there any way to model the effects of delayed phase of two resonantly coupled inductors in LTSpice? I imagine it would be something like a wireless transmission line but I have no idea how I would even start to model this. Again, the phase delay range I'm interested in is only 10-20 degrees max from the source. Any pointers in the right direction greatly appreciated!
Also, as a reference, here's a paper I've been reviewing that discusses the subject a bit more.
Thank you, Jason O