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Radio Frequency Identification (RFID) is that the wireless non-contact use of frequency waves to transfer data. Tagging items with RFID tags help the users to identify and track inventory or assets automatically and uniquely. RFID takes auto-ID technology to the subsequent level by allowing tags to be read without a line of sight and, relying on the type of RFID, having a read range between a few centimeters to over 20+ meters.

RFID got distinguished with its first application where it identified the airplanes as friends or foe in war II. Not only does the technology still improves year over year, but the cost of implementing and using an RFID system in Pakistan continues to decrease, making RFID less costly and efficient.

Talking briefly, there are few types also within the spectrum, there are three primary frequency ranges used for RFID transmissions – Low Frequency, High Frequency, and Ultra-High Frequency.

An RFID system are mainly composed of three components which include a scanning antenna, a transceiver, and a transponder. When the scanning antenna and transceiver get combined, they’re mentioned as an RFID reader or interrogator. The RFID reader may be a network-connected device that will be portable or permanently attached. It uses frequency waves for its operation to transmit signals that are sufficient to activate the tag.  The tag is liable to send a wave back to the antenna once activated and gets translated into data. The transponder is found within the RFID tag itself. The read range for RFID tags varies supported factors including the sort of tag, sort of reader, RFID frequency, and interference within the surrounding environment or from other RFID tags and readers. Generally speaking, tags that have a stronger power source even have a extended read range.