CST – Computer Simulation Technology

Hybrid UHF/UWB Antenna for Passive Indoor Identification and Localization Systems

Title:
Hybrid UHF/UWB Antenna for Passive Indoor Identification and Localization Systems
Author(s):
Catarina C. Cruz, Jorge R. Costa, Carlos A. Fernandes
Source:
IEEE Transactions on Antennas and Propagation
Vol./Issue/Date:
Volume: 61, Issue: 1, January 2013
Year:
2013
Page(s):
354 - 361
Keywords:
Indoor localization, identification, passive tag antenna, dual-band antenna, RFID, UWB
Abstract:
There is a growing interest for simultaneous identification and centimetre-resolution localization of multiple targets in indoor environments. A hybrid passive UHF/UWB RFID concept has been recently proposed that conciliates the potential from high resolution UWB impulse radio with the typical range from UHFRFID identification systems. This paper proposes a new planar antenna for hybrid passive tag systems, which operates both in the UHF-RFID band and in the FCC UWB band. The co-designed UHF andUWB antenna elements are printed back-to-back on each side of a common substrate with appropriate topology for future integrationwith a single UHF-UWBRFIDchip. Experimental tests have shown that both UHF-RFID and UWB performance of the hybrid antenna are comparable to available commercial solutions that work just on a single band. The antenna is adequate for lowcost mass production of hybrid passive tags. It aims at low-cost passive RFID systems combining the ability of item identification with precise tracking in indoor environments.
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