Second- and Third-Harmonic Backscatter Through a Bandstop Filter Using Defected Ground Structure
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866908773198594048 |
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| author | Che, Dan Liu, Changjun He, Haoming Ren, Zhi Hua Wu, Pengde |
| author_facet | Che, Dan Liu, Changjun He, Haoming Ren, Zhi Hua Wu, Pengde |
| contents | In this brief, a novel harmonic-backscatter-rectifier (HBR) is introduced for simultaneous rectification and harmonic-based uplink. The proposed (HBR) employs a rectifier to generate both DC power and the harmonic carriers for backscattering communication, and a dual-band reconfigurable band-stop filter using defected ground structure(DGS) to modulate the second and third harmonics with low-power consumption and same input impedance at f0 all the time. As a proof of concept, an HBR prototype operating at 1.85 GHz was designed and experimented. An uplink data rate of 8Mbps (4Mbps x 2 ) was achieved when the HBR was fed with -10 dBm RF power, and the data modulation consumed less than 27.7pJ/bit. In addition, a passive harmonic tag was implemented with the proposed HBR and a low-power binary sequence generator, which demonstrated a continuous uplink of 12 kbps at -6 dBm RF power. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_12087 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Second- and Third-Harmonic Backscatter Through a Bandstop Filter Using Defected Ground Structure Che, Dan Liu, Changjun He, Haoming Ren, Zhi Hua Wu, Pengde Applied Physics In this brief, a novel harmonic-backscatter-rectifier (HBR) is introduced for simultaneous rectification and harmonic-based uplink. The proposed (HBR) employs a rectifier to generate both DC power and the harmonic carriers for backscattering communication, and a dual-band reconfigurable band-stop filter using defected ground structure(DGS) to modulate the second and third harmonics with low-power consumption and same input impedance at f0 all the time. As a proof of concept, an HBR prototype operating at 1.85 GHz was designed and experimented. An uplink data rate of 8Mbps (4Mbps x 2 ) was achieved when the HBR was fed with -10 dBm RF power, and the data modulation consumed less than 27.7pJ/bit. In addition, a passive harmonic tag was implemented with the proposed HBR and a low-power binary sequence generator, which demonstrated a continuous uplink of 12 kbps at -6 dBm RF power. |
| title | Second- and Third-Harmonic Backscatter Through a Bandstop Filter Using Defected Ground Structure |
| topic | Applied Physics |
| url | https://arxiv.org/abs/2601.12087 |