| Autor: |
Engin Dogan, Ali Kursad Gorur, Adnan Gorur |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
IEEE Access, Vol 11, Pp 107429-107440 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2169-3536 |
| DOI: |
10.1109/ACCESS.2023.3320108 |
| Popis: |
For multi-resonator based chipless radio frequency identification (RFID) tags, a novel triple-mode resonator is designed by loading open-circuited stubs to a transmission line which is coupled to input and output ports. Since the proposed resonator provides independently controllable three resonant frequencies, three bits can be obtained by means of a single triple-mode resonator. The presence and absence of the open stubs results in eight states from a single triple-mode resonator. Therefore, N triple-mode resonators in different lengths can generate $8^{N}$ different frequency codes. For this purpose, a multi-resonator circuit operating between 1.9 and 3.75 GHz is also developed by using 5 triple-mode resonators, so that 15 resonant frequencies can be obtained. Two conventional vertically/horizontally polarized monopole antennas are used to demonstrate the tag performance. Bit density and spectral efficiency of the designed tag are 29.04 bits/ $\lambda _{g}^{2}$ and 8.33 bits/GHz. Two chipless RFID tags having different frequency codes have been fabricated and tested in a good agreement with the predicted results. The designed tags have also been tested under various circumstances successfully. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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