State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan, Nanjing, 210023, P. R. China.
College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), National and Local Joint Engineering Laboratory of RF Integration and Micro-Assembly Technology, Nanjing University of Posts & Telecommunications, 9 Wenyuan, Nanjing, 210023, P. R. China.
Nat Commun. 2023 Jan 17;14(1):278. doi: 10.1038/s41467-022-35371-6.
Flexible titanium carbide (TiC) 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 TiC inks. Here, we report the flexible ultrawideband TiC 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 TiC film and commercial circuit boards for high spatial uniformity and mechanical flexibility. The bandwidth and center frequency of TiC 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.
灵活的碳化钛 (TiC) 天线为物联网 (IoT) 应用信息通信的普及提供了突破。由于介电基板和无添加剂 TiC 油墨的有限共形集成，当前的配置受到限制，只能采用多层复杂设计。在这里，我们通过结合界面改性和先进挤压印刷技术的策略，报告了灵活的超宽带 TiC 单极天线。聚多巴胺作为分子胶纳米结合剂，有助于 TiC 薄膜与商用电路板之间的紧密附着相互作用，以实现高空间均匀性和机械灵活性。弯曲天线返回平坦状态后，TiC 天线的带宽和中心频率可以得到很好的保持，低频范围内的增益差异在±0.2 dBi 内波动，克服了传统的非弹性 Cu 天线。它还实现了在弯曲状态下流畅稳定的实时无线传输演示实例。
