Author, as appears in the article.: Lazaro, A. Ramos, A. Villarino, R. Girbau, D.
Department: Enginyeria Electrònica, Elèctrica i Automàtica
e-ISSN: 1558-2221
Abstract: In this paper, we present an active ultra-wideband (UWB) reflector for radio frequency identification (RFID) and wireless sensor applications. The tag is composed of a receiver UWB antenna connected to a broadband amplifier. Its output is connected to a cross-polarized transmit antenna. In order to increase the battery lifetime, an UHF link is used to wake up the microcontroller. It modulates the radar cross section of the tag by turning the amplifier bias on and off. The amplitude of the reflected UWB pulse sent by the UWB reader is modulated as a result. The basic theory of operation of ultra-wideband radio identification systems is explained in this paper. A proof of concept using commercial components and experimental results obtained with an ultra-wideband radar are presented.
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Keyword in other language: UWB Antennas
ISSN: 0018-926X
Last page: 4774
Journal volume: 61
Papper version: info:eu-repo/semantics/acceptedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Entity: Universitat Rovira i Virgili.
Journal publication year: 2013
First page: 4767
Repositori URV