2D Titanium carbide printed flexible ultrawideband monopole antenna for wireless communications

Weiwei Zhao, Hao Ni, Chengbo Ding, Leilei Liu (), Qingfeng Fu, Feifei Lin, Feng Tian, Pin Yang, Shujuan Liu, Wenjun He, Xiaoming Wang, Wei Huang () and Qiang Zhao ()
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Weiwei Zhao: Nanjing University of Posts & Telecommunications
Hao Ni: Nanjing University of Posts & Telecommunications
Chengbo Ding: Nanjing University of Posts & Telecommunications
Leilei Liu: Nanjing University of Posts & Telecommunications
Qingfeng Fu: Nanjing University of Posts & Telecommunications
Feifei Lin: Nanjing University of Posts & Telecommunications
Feng Tian: Nanjing University of Posts and Telecommunications
Pin Yang: Nanjing University of Posts & Telecommunications
Shujuan Liu: Nanjing University of Posts & Telecommunications
Wenjun He: Nanjing University of Posts & Telecommunications
Xiaoming Wang: Nanjing University of Posts & Telecommunications
Wei Huang: Nanjing University of Posts & Telecommunications
Qiang Zhao: Nanjing University of Posts & Telecommunications

Nature Communications, 2023, vol. 14, issue 1, 1-10

Abstract: Abstract Flexible titanium carbide (Ti3C2) antenna offers a breakthrough in the penetration of information communications for the spread of Internet of Things (IoT) applications. Current configurations are constrained to multi-layer complicated designs due to the limited conformal integration of the dielectric substrate and additive-free Ti3C2 inks. Here, we report the flexible ultrawideband Ti3C2 monopole antenna by combining strategies of interfacial modification and advanced extrusion printing technology. The polydopamine, as molecular glue nano-binder, contributes the tight adhesion interactions between Ti3C2 film and commercial circuit boards for high spatial uniformity and mechanical flexibility. The bandwidth and center frequency of Ti3C2 antenna can be well maintained and the gain differences fluctuate within ±0.2 dBi at the low frequency range after the bent antenna returns to the flat state, which conquers the traditional inelastic Cu antenna. It also achieves the demo instance for the fluent and stable real-time wireless transmission in bending states.

Date: 2023
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DOI: 10.1038/s41467-022-35371-6

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