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Article Dans Une Revue IEEE Transactions on Microwave Theory and Techniques Année : 2016

Folded Multilayer C-Sections With Large Group Delay Swing for Passive Chipless RFID Applications

Résumé

An origami based multilayer structure suitable for passive chipless Radio Frequency Identification (RFID) applications is presented in this article. Contrary to the existing multilayer designs where metallic via is used for the interconnections, the proposed technique uses the folding of the structure designed in a flexible substrate. Thus, the multilayer structure is obtained from a thin printed circuit board that is folded to give the desired 3D structure. The proposed structure consists of cascaded commensurate transmission line sections (also known as C-sections) coupled at alternative ends. The group delay characteristic of the C-sections is utilized for encoding. Broad side coupling of the structure is exploited here, which enables large group delay with higher frequency selectivity. It is proved that to produce the same amount of delay, linearly cascaded C-sections demands five times more number of C-sections than that of a multilayered structure, which also signifies the factor of miniaturization of the proposed design. A coding capacity of 6 bits and 12 bits are estimated, respectively, for single and multi-group of multilayered C-sections in the allowed industrial, scientific and medical (ISM) bands. This shows for the first time that frequency domain chipless technology can be compatible with the use of ISM bands. It also allows a coding capacity of 43 bits in the ultra-wideband (UWB) band which is comparable with the EAN 13 barcode.
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Dates et versions

hal-02066603 , version 1 (01-07-2020)

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Raji Sasidharan Nair, Etienne Perret. Folded Multilayer C-Sections With Large Group Delay Swing for Passive Chipless RFID Applications. IEEE Transactions on Microwave Theory and Techniques, 2016, 64 (12), pp.4298-4311. ⟨10.1109/TMTT.2016.2613049⟩. ⟨hal-02066603⟩

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