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 ...

A periodic signal that persists indefinitely, without changing its amplitude, frequency, or Phase–a continuous wave (CW) signal–carries no information other than the fact that it is present. In order ...

Listen to the pop, sizzle, and hum. Look at the bars and wavy lines. These and other characteristics of electromagnetic interference (EMI) are very familiar. RF energy is radiated from a culprit ...