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 ...

It doesn't have an active supply of power, but the magic happens when a device that uses RFID (like your phone) is nearby: When approached by a RFID reader some of the energy from the magnetic ...

If you’ve worked with passive RFID before, you know that most readers only work within inches of the card. In [Fran’s] DEFCON talk this summer he calls it the “ass-grabbing method” of ...

Instead of using a standard RFID reader, the system employs a network analyzer—an RF-based measurement device often used in ...

I would approach the RFID reader using a variation on this circuit ... tunnel diodes, or other active components, you lateral thinkers. It must demonstrably read a 125 kHz RFID tag placed within ...

Radio-Frequency Identification (RFID) technology is everywhere—powering everything from contactless payments and inventory tracking to access control systems. But while RFID systems makes life more ...

The RAIN Alliance has launched a new initiative to standardize the integration of RAIN RFID reader technology into mass market smartphones, marking a significant advancement in mobile authentication ...

The waves reach the tag's antenna and power the chip, which then sends its data to the reader in a process called "backscatter." Average cost for these is about $0.12 per tag in bulk. Active RFID ...

The "Radio Frequency Identification Technology Market Size, Share & Trends Analysis Report by Component (Tags, Antennas, ...