TIME-DOMAIN MEASUREMENT OF TIME-CODED UWB CHIPLESS RFID TAGS | Zendy

Ángel Ramos | Zendy; Antonio Lázaro | Zendy; David Girbau | Zendy; Ramón Villarino | Zendy

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TIME-DOMAIN MEASUREMENT OF TIME-CODED UWB CHIPLESS RFID TAGS

Author(s) -

Ángel Ramos,

Antonio Lázaro,

David Girbau,

Ramón Villarino

Publication year - 2011

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier11033005

Subject(s) - chipless rfid , time domain , computer science , real time computing , acoustics , telecommunications , physics , computer vision , radio frequency identification , computer security

Chipless ultra-wideband (UWB) has been proposed as a low-cost alternative for radiofrequency identiflcation (RFID). In this paper, a comprehensible theoretical introduction to time-domain operation of a UWB RFID tag is described, and a circuit model is proposed. For commercial applications low-cost RFID readers are demanded. To this end, this paper addresses the measurement of time-coded UWB chipless tags for RFID in time domain. Two difierent setups to detect time-coded tags are presented, one based on commercial UWB impulse radar (IR) and the other based on a vector network analyzer (VNA). The experimental results show the feasibility of using an IR-UWB radar as a UWB RFID reader, achieving very good read ranges.

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