To get the average power for a periodic signal, we add up the total power over a cycle and divide by the cycle time. This gives us a factor of (1/2), the average value of cos 2: Sometimes people ...

NCPR broadcasts throughout the North Country on FM. FM is a truly wonderful thing … if handled correctly. To receive and enjoy our quality programs to the fullest, you'll need the three A's of radio: ...

Analog radio broadcasts are pretty simple, right? Tune into a given frequency on the AM or FM bands, and what you hear is what you get. Or at least, that used to be the way, before smart engineers ...

Passive and semipassive RFID tags do not use a radio transmitter; instead, they use modulation of the reflected power from the tag antenna. Reflection of radio waves from an object has been a subject ...