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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2505.01570 |
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| _version_ | 1866916849544855552 |
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| author | Saetia, Christopher Graves, Kaitlyn Tadik, Serhat Durgin, Gregory D. |
| author_facet | Saetia, Christopher Graves, Kaitlyn Tadik, Serhat Durgin, Gregory D. |
| contents | Tunnel diodes have traditionally been researched for extending backscatter read-ranges for ultra-high-frequency (UHF) radio-frequency identification (RFID) tags as reflection amplifiers. This paper explores the natural harmonics that arise from biasing these diodes within their negative differential resistance regions and with no interrogating signal from a transmitting source, such as an RFID reader, to injection-lock these diodes. These harmonics are characterized for five tunnel diode boards, made with the same components and with each board's fundamental frequencies measuring at above -15 dBm at a biasing voltage of 200 mV when measured over-the-cable. The occurrence of these harmonics creates unique harmonic signatures for each board and demonstrates possible harmonic RFID applications that can help RFID readers discover and even identify RFID tags with backscatter-less and memory-less IDs generated by tunnel diodes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_01570 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Memory-less and Backscatter-less Tunnel Diode Harmonic Signatures for RFID Saetia, Christopher Graves, Kaitlyn Tadik, Serhat Durgin, Gregory D. Signal Processing Tunnel diodes have traditionally been researched for extending backscatter read-ranges for ultra-high-frequency (UHF) radio-frequency identification (RFID) tags as reflection amplifiers. This paper explores the natural harmonics that arise from biasing these diodes within their negative differential resistance regions and with no interrogating signal from a transmitting source, such as an RFID reader, to injection-lock these diodes. These harmonics are characterized for five tunnel diode boards, made with the same components and with each board's fundamental frequencies measuring at above -15 dBm at a biasing voltage of 200 mV when measured over-the-cable. The occurrence of these harmonics creates unique harmonic signatures for each board and demonstrates possible harmonic RFID applications that can help RFID readers discover and even identify RFID tags with backscatter-less and memory-less IDs generated by tunnel diodes. |
| title | Memory-less and Backscatter-less Tunnel Diode Harmonic Signatures for RFID |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2505.01570 |