All the calculations we've performed so far assume that a wave leaves the antenna and strikes the tag, interacting with no other objects. This kind of calculation is very sensible if the tag and ...

Ever hear of the Phoniebox project? If not – tune in, that’s a hacker’s project your entire family will appreciate. Phoniebox is a software suite and tutorial for building a jukebox controlled through ...

Electrical currents and charges radiate, but the net effects usually cancel; an antenna is a special structure arranged to avoid such cancellation and create electromagnetic waves from electrical ...