You searched for: “passive tag”
passive tag
1. An RFID tag without a battery.

When radio waves from the reader reach the chip’s antenna, the energy is converted by the antenna into electricity that can power up the microchip in the tag.

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, depending on the amount of memory on the tag and other features.

2. A tag that contains no internal power source.

It typically derives its power from the carrier signal radiated from the scanner or reader. This type of tag is used in all library RFID systems.

This entry is located in the following unit: Radio Frequency Identification (RFID): Definitions (page 7)
Word Entries containing the term: “passive tag”
semi-passive tag
Similar to active tags, but the battery is used to run the microchip's circuitry but not to broadcast a signal to the reader.

Some semi-passive tags sleep until they are woken up by a signal from the reader, which conserves battery life.

Semi-passive tags can cost a dollar or more. These tags are sometimes called battery-assisted tags.

This entry is located in the following units: Radio Frequency Identification (RFID): Definitions (page 9) semi- (page 3)