The battery in an active RFID tag plays a crucial role in powering the tag”s operations. It provides the necessary electrical energy to the microchip, allowing it to perform tasks such as data processing, modulation, and transmission. The battery life can vary depending on the power requirements of the tag and the frequency of transmission.
RFID technology works by transmitting data through radio waves. The process involves: Tag Activation: When an RFID tag enters the reader’s signal range, its antenna receives the electromagnetic signal, which powers the chip, enabling it to transmit data. Passive tags rely on the reader’s energy, while active tags use an internal battery.
The battery life of active RFID tags is a limiting factor. However, advancements in energy harvesting technology could enable RFID tags to draw power from environmental sources, such as solar energy or electromagnetic fields, extending their lifespan and reducing maintenance costs.
Active RFID tags differ from passive RFID tags in that they have their own internal power source, typically a battery. Unlike passive tags that rely on external RF energy for power, active tags are self-powered and can transmit signals over longer distances. An active RFID tag consists of a microchip, an antenna, and a battery.
Cost: Active RFID tags are relatively more expensive, reaching up to $20 per tag (may vary). Battery Life: The operational lifespan of an active RFID tag is tied to its battery life, which typically lasts around four years before needing replacement.
RFID tags, the core components of RFID systems, come in two main types: passive and active tags. Passive RFID tags rely on external RF energy emitted by RFID readers to power their operation. These tags are cost-effective, lightweight, and suitable for short-range applications.