Low- and high-frequency RFID tags are usually passive or semi-active tags. These tags are less than one full wavelength away from the RFID reader and must modulate the wave produced by the reader into ...

Similarly, asset tracking capabilities of both passive and active RFID tags help operators locate needed equipment and other items far more rapidly than any human search could ever achieve.

An RFID tag without its own power source and transmitter ... The tag is able to send back information stored on the chip. Today, simple passive tags cost from U.S. 20 cents to several dollars, ...

Here’s an open source RFID cloner design that is about the same size as a standard RFID key card. It doesn’t need a battery to capture key codes, just the magnetic field generated by an RFID ...

Image credit: Advanced Infrastructure The way in which the reader perceives the RFID tag depends on whether the tag is active or passive. Active tags periodically transmit the tag's RF signal, which ...

For other applications, passive RFID tags can be read up to approximately 10 feet away, while active tags with batteries can be several hundred feet from the reader. Linear polarized antennas ...

The RFID business is quintupling in value in the next ten years but the Active RFID business is growing about ten times. The trend in the number of suppliers of active RFID and trials, the trend in ...