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Method of remote powering and detecting multiple UWB passive tags in an RFID system

Patent ·
OSTI ID:1041250
 [1];  [2];  [3];  [3];  [4]
  1. Castro Valley, CA
  2. San Ramon, CA
  3. Livermore, CA
  4. Palo Alto, CA
+ Show Author Affiliations
A new Radio Frequency Identification (RFID), tracking, powering apparatus/system and method using coded Ultra-wideband (UWB) signaling is introduced. The proposed hardware and techniques disclosed herein utilize a plurality of passive UWB transponders in a field of an RFID-radar system. The radar system itself enables multiple passive tags to be remotely powered (activated) at about the same time frame via predetermined frequency UWB pulsed formats. Once such tags are in an activated state, an UWB radar transmits specific "interrogating codes" to put predetermined tags in an awakened status. Such predetermined tags can then communicate by a unique "response code" so as to be detected by an UWB system using radar methods.
Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-7405-ENG-48
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
8,188,841
Application Number:
US patent applicaiton 11/897,773
OSTI ID:
1041250
Country of Publication:
United States
Language:
English

References (1)

A coded radar reflector for remote identification of personnel and vehicles conference January 1993

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