Electronic Sensors and Systems Projects

Battery-Assisted-Passive Radio Frequency Tags

Pacific Northwest National Laboratory developed this semi-passive RF tag for the Army to detect and locate night-vision goggles in a cluttered battlefield.

Long-range monitoring with additional capabilities

Unlike totally passive radio frequency tags, the battery-assisted semi-passive tags are powered by a battery, allowsing them greater read range. Pacific Northwest National Laboratory's battery-assisted semi-passive tags have been proven in real-world conditions to monitor (read) and modify (write) from distances greater than 100 meters.

With power from small batteries similar to those found in watches, battery-assisted semi-passive tags can be used to monitor inputs from sensors, even when the tags aren't in the presence of a radio frequency field. As a result, our battery-assited semi-passive radio frequency tags also can control outputs. These systems can be used to activate or deactivate items remotely, making them ideal for alarms, ammunition, or thermostats.

Benefits

Long-distance devices—greater range to read and write
What's happening?—monitor inputs remotely
Hit the switch—activate or disable items remotely
Location, location, location—track an item's precise location

Battery-Assisted-Passive Radio Frequency Tags - Technologies Available for Licensing

Point of Contact Mary Peterson