Journal
ELECTRONICS LETTERS
Volume 48, Issue 13, Pages 749-750Publisher
INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/el.2012.1030
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Funding
- IT R&D programme of MKE/KEIT, Republic of Korea [10033189]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10033189] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A low-cost, wideband, flexible antenna for radio frequency identification tags mountable on curved metal surfaces is presented. The antenna consists of a label-type patch adhering to a flexible polyvinyl chloride substrate. A novel balanced feed method using two orthogonal slits on the patch is proposed to perform simple and wideband impedance matching between the antenna and a tag chip. A prototype antenna was fabricated and tested with a commercial tag chip. It has a 3 dB return loss bandwidth of 70 MHz and a uniform read range of over 9.7 m in the 902-928 MHz range when it is mounted on a cylindrical metal plate with a radius of curvature of 150 mm.
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