DocumentCode
521820
Title
Novel antenna configuration for HF- and UHF-band hybrid card-type RFID tags
Author
Nishioka, Y. ; Hitomi, K. ; Okegawa, H. ; Mizuno, T. ; Fukasawa, T. ; Miyashita, H. ; Konishi, Y.
Author_Institution
Mitsubishi Electr. Corp., Kamakura, Japan
fYear
2010
fDate
12-16 April 2010
Firstpage
1
Lastpage
5
Abstract
This paper presents a novel, effective antenna configuration for HF- and UHF-band hybrid card-type RFID tags. The proposed antenna positively utilizes a coil for operation in the HF band as a ground conductor and acts as a monopole antenna in the UHF band. Capacitive coupling of the coil windings at the vicinity of the UHF feed point helps to reduce the dependency of the radiation efficiency on the coil´s dimensions and to obtain higher radiation efficiency in the UHF band. The wideband characteristics and effectiveness of the proposed antenna are demonstrated by electromagnetic simulations and experiments.
Keywords
Bandwidth; Broadband antennas; Coils; Conductors; Dipole antennas; Dual band; Hafnium; RFID tags; Radiofrequency identification; UHF antennas;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on
Conference_Location
Barcelona, Spain
Print_ISBN
978-1-4244-6431-9
Electronic_ISBN
978-84-7653-472-4
Type
conf
Filename
5504968
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