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How to define the port of Tx and Rx antenna of wireless power transfer in HFSS

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smlee

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Dear sir,

Good evening?
I'm designing the inductive coupling wireless power transfer antenna at 100~300kHz using HFSS simulation tool.
In order to calculate the transfer efficiency in Rx loop antenna, Rx antenna also needs the port (second port) which is only used for calculating without excitation signal, while port 1 in Tx antenna is applied the excitation signal.

The quetions are as follows,
1) How can define the port 2 without excitation signal in Rx antenna to calculate S21 value from Tx antenna source?
2) If WPT antennas are using the lumped port in Tx and Rx, which type of solution is more recommended for its model between driven modal and driven terminal?

Thank you in advance,
SM Lee
 

1) assign the second port (port 3) to the second terminal of the Rx antenna. Adding a port doesn't mean it is adding an excitation signal. S21 is the power received at port 2 relative to power input at port 1.
2)I'd recommend modal, but I'm not an expert on the issue. I use terminal solutions for differential signals and modal for everything else.
 
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