On 09/05/2010 10:06 PM, Peter Krengel wrote:
Thanks Robert, Stanley and Bob for the tips.

I tested some materials in a microwave oven and they all seemed to
be good because there was no heating (maybe handwarm at 800W).

So the magic word seems to be refracting effects even at 1.5GHz...

As I cannot get a commercial helf sphere for putting over the patch
has anyone an idea what to take for i.e. from kitchen?

One should recall that some plastics absorb more water than others... so unless one has a good info on their absorbtion, putting them into water overnight and the pour it out and wipe it clean just prior to microwave it would form a better simulation...

Cheers,
Magnus

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