A flexible, wideband RFID tag antenna for metallic surfaces

A flexible, wideband antenna for radio frequency identification tags mountable on metallic surfaces is presented. A novel balanced feed structure, in which a longitudinal two-step staircase slit is inserted at one of the radiating edges of a patch and a tag chip feed is placed between the two steps,...

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Bibliographic Details
Published inProceedings of the 2012 IEEE International Symposium on Antennas and Propagation pp. 1 - 2
Main Authors Cho, J.-H, Son, H.-W, Jeong, S.-H, Choi, W.-K, Park, C.-W
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2012
Subjects
Antenna measurements
Broadband antennas
Impedance
Radiofrequency identification
Surface impedance
Wideband
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Summary:A flexible, wideband antenna for radio frequency identification tags mountable on metallic surfaces is presented. A novel balanced feed structure, in which a longitudinal two-step staircase slit is inserted at one of the radiating edges of a patch and a tag chip feed is placed between the two steps, is proposed to perform simple and wideband impedance matching between an antenna and a tag chip. There is no via connection between the patch and ground plane. The measured 3-dB return loss bandwidth of the proposed antenna is about 84 MHz, and its read range is about 8.1 m.
ISBN:1467304611
9781467304610
ISSN:1522-3965
1947-1491
DOI:10.1109/APS.2012.6349362