I once read on a forum that an antenna is basically an impedance matching network between the radio system and free space.
I've believed this and thought about it since.
Now I wonder, since an antenna radiates electromagnetic waves, and the impedance of free space presumably exists due to things like air, if this is not correct. If i understand this bit of physics correctly, the EM wave exists independently to molecules and atoms in the atmosphere.
yeah?
Thanks,
J
I've believed this and thought about it since.
Now I wonder, since an antenna radiates electromagnetic waves, and the impedance of free space presumably exists due to things like air, if this is not correct. If i understand this bit of physics correctly, the EM wave exists independently to molecules and atoms in the atmosphere.
yeah?
Thanks,
J