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In this paper the novel passive UHF RFID seal tag for metallic returnable transit items (RTI) is presented. The tag design exploits the metal structure of RTI. Enhanced security encoding based on MD5 hash and AES algorithm is also presented, which enables authentication without online network connection. Up to 9 m theoretical read distance was obtained with 19 mm ?? 20 mm ?? 57 mm size tag. 100% read...
Flexible antennas for GPS reception have been designed and their performance on two different substrates has been evaluated. Two antenna types, a corner-truncated square patch and a planar inverted F-antenna were studied. Antenna patterns were manufactured using conductive pastes and silk screen printing technique. Two different silver pastes and several mixing ratios of silver and carbon pastes were...
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