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Modern foil covered foam insulation and coated window glass unfortunately blocks mobile phone signals rather well. I'm aware of solutions that use broadband and wifi to tunnel through it but this seems like a problem waiting for a better solution.
Are there any good/cheap alternatives to metal foil coating that reflect heat as well but don't block radio waves? Perhaps someone has a neat design for a slot antenna that could be cut into the foil before being applied to the foam?
Are there any good/cheap alternatives to metal foil coating that reflect heat as well but don't block radio waves? Perhaps someone has a neat design for a slot antenna that could be cut into the foil before being applied to the foam?