Problems when simulating antenna efficiency
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Hi, I am using sim4life to estimate the efficiency (the ratio between the EM radiated power and the electrical power delivered to the antenna) of a communication antenna for an implantable device. What would be the best way to do it?
So far my approach has been the following:
- Perform an FDTD simulation.
- Extract the "Overall Field" sensor.
- Choose "Power balance".
However, I get a radiated power nearly ten times less than the input power (even at ideal conditions, without any losses).
I have also tried integrating the Poynting vector over a surface to get the radiated power and extracting the input power sensor, however, I get nearly the same results.
How can I simulate the efficiency of an antenna using sim4life?