Wireless Electricity using HFSS

Hello everyone, i'm an analog designer so i'm kinda new to HFSS. working on wireless electricity research and already have finished the circuit design on Cadence Virtuoso. now i'm working on the EM simulation on HFSS. I have a head model (already built on HFSS) and i have two coils to transmit and receive the power beside the head model. i have everything built but now i need to set up the excitation and reports. my questions are;
1) is there any way to excite the system from the circuit i designed on Cadence?
2) if i am exciting a coil from one terminal with a current source... shouldn't i set the other terminal of the coil wire to be ground or something ? or it will assume that the current is moving through the coil wire anyway?
3) how can i calculate the induced current in the secondary coil ?
4) is there any way to calculate the inductance of a coil that i built in HFSS ?
5) to find the E-field and H-field and SAR inside the head model.. should i set the head model to a certain type of port or something?

Thanks a lot in advance and very sorry asking many questions !