RFID tags may be one of two types:
- Active Tags
- Passive Tags
Active tags are packed with its own power source which amplifies their range of readability and results the readers at much farther distance to recieve the signals. However, passive tags do not require any power source and its power is supplied by the reader’s signals upon interrogation.
Active Tags: Advantages
- Higher distance in terms of coverage and readability
- Might consist of other sensors as the components power source is supplied internally
- Higher data bandwidth
Active tags: Disadvantages
- Higher cost of production
- Larger in size and limitation in its application and usage
- Requirement of maintenance and replacement of its battery
Passive Tags: Advantages
- Unlimited applications due to its small size
- Functional without the need of a battery
- Less expensive
Passive Tags: Disadvantages
- The tag can be read at a very short distance
- Basic functionality as it’s often not possible to be equipped with other sensors
- The tag remains readable even after the product is sold or terminated from process
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