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Not that long ago, the radios in a cell phone would be SF.


Indeed!

The antenna in mobile phones perform well across a wide range of frequencies due to being fractals!

https://en.wikipedia.org/wiki/Fractal_antenna


No, it does so because of solid state tuners, and RF switches.


The article I linked claims:

A fractal antenna's response differs markedly from traditional antenna designs, in that it is capable of operating with good-to-excellent performance at many different frequencies simultaneously.

Is this inaccurate?

The associated electronics are obviously necessary too.


Fractal antennas are mostly snake oil. You’ll always see then driven against a large counterpoise (ground plane), as the counterpoise becomes the radiator. You can make use of Chu’s limit without resorting to fractals.

https://en.m.wikipedia.org/wiki/Chu–Harrington_limit


FYI @madengr, almost all of your recent comments - going back a few months, are in [dead] state. Not sure if you've been shadow-banned or what, but you might want to contact the mods or something.




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