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by claudex 547 days ago
longer wavelength also means longer antenna, which doesn't fit most use case for inside usage.
1 comments
dcow 547 days ago
Have you seen modern cell and wifi antennas? The wavelength of wifi is 11cm so you make a quarter wave antenna and print it right on to the board [1].

1. https://www.antenna-theory.com/antennas/patches/pifa.php

link
Dylan16807 547 days ago
"below 300MHz" means a wavelength of at least a meter.
link