Title :
A flexible, wideband RFID tag antenna for metallic surfaces
Author :
Cho, J.-H. ; Son, H.-W. ; Jeong, S.-H. ; Choi, W.-K. ; Park, C.-W.
Author_Institution :
Div. of Electron. & Inf. Eng., Chonbuk Nat. Univ., Jeonju, South Korea
Abstract :
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.
Keywords :
antenna feeds; broadband antennas; radiofrequency identification; balanced feed structure; flexible wideband RFID tag antenna; ground plane; longitudinal two-step staircase slit; loss 3 dB; metallic surfaces; patch radiating edge; radiofrequency identification tags; tag chip feed; Antenna measurements; Broadband antennas; Impedance; Radiofrequency identification; Surface impedance; Wideband;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349362
