Elliptical slot based polarization insensitive compact and flexible chipless RFID tag

Jabeen, Iqra, Ejaz, Asma, Akram, Adeel, Amin, Yasar, Loo, Jonathan and Tenhunen, Hannu (2019) Elliptical slot based polarization insensitive compact and flexible chipless RFID tag. International Journal of RF and Microwave Computer-Aided Engineering, 29 (11) , e21734. ISSN 1099-047X [Article] (doi:10.1002/mmce.21734)

Abstract

A miniaturized, polarization insensitive, and fully passive chipless radio frequency identification tag is proposed in this research article. The realized tag is based on slotted elliptical structures in a nested loop fashion with identical lengths and widths of slot resonators. Alteration of data sequence is accomplished by addition and elimination of nested resonators in the geometric structure. The tag is capable to encode 10 bits of data and covers spectral range from 3.6 to 15.6 GHz. The formulated structure demonstrates polarization insensitive characteristic. The data encoding structure is analyzed and optimized for different substrates that are, Rogers RT/duroid/5880, Rogers RT/duroid/5870, and Taconic TLX‐0 over the miniaturized footprint of 22.8 × 16 mm2. The presented tag is robust, novel, compact, and flexible exhibiting a stable response to impinging electromagnetic waves at various angles of incidence.

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