D: the new Neonode cellphones use an antenna by Fractus.
Fractus uses fractal antenna technology.
The size they speak of look to be roughly compatible with a WaveBubble.
40.8 x 10.74 x 7.45 mm
D: hmm, 4 x 10 x 8cm, circa.
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D: a nice cover of not-metal might be nice.
The dimensions are roughly compatible.
I am mostly interested in cellphone frequencies.
Also, a directional antenna could eke out more range from the anemic internal antenna configuration.