قلم

وبلاگ امیرحسین حاجی حسینی

قلم

وبلاگ امیرحسین حاجی حسینی

قلم

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پنجشنبه, ۱۳ آذر ۱۳۹۹، ۰۷:۰۹ ب.ظ

۰

A compact half butterfly chipless RFID tag based on image theory with DER analysis

پنجشنبه, ۱۳ آذر ۱۳۹۹، ۰۷:۰۹ ب.ظ

A compact half butterfly chipless RFID tag based on image theory with DER analysis

 Amirhosein Zarif, Sajad Mohammad-Ali-Nezhad, Sajad Tijeri-Mofrad, Amirhosein Hajihoseini Gazestani

Abstract:

In this paper, a compact RFID chipless structure is designed, simulated, and fabricated. Image theory has been used to reduce the structure of the RFID tag so that it halves the tag and creates a PEC wall having the same resonant frequencies. In other words, each symmetric structure by this method is half the size with features similar to the original structure. The proposed structure has a ratio of area to lambda equal to 0.05 in which there are nine resonances in a frequency band of 4.3–8.5 GHz with dimensions of 14 × 7 mm2 in a bit density of 9.18 bit/cm2 and fabricated on Rog4003 substrate. The bit density for the full structure was equal to 4.59 bit/cm2. The original and proposed structures have similar resonances that indicate the accuracy of the proposed method. Also, this method can be used to create a label with a higher number of bits. The simulation results using HFSS software were in good agreement with the measurement results. Furthermore, the calculated detection error rate of the proposed structure was lower than the original one.

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