the radiator has a size of 1m x 1m, with a 60m Varylink.
Here is the result of the 60m test:
and here you see the full RBN report.
here the efficient is 87.5% !!!
and the calculation is here.
In the update is now included the construction of the 60mVarylink.
And here you see the 60m antenna installed on the car: