Electrically tunable metadevices can add novel functionalities to electronic and electromagnetic systems such as antennas and cloaking technologies. However, current microwave metadevices are based on materials that require sophisticated and expensive fabrication processes, and are not compatible with large-area and high-throughput deposition techniques on flexible platforms. Here we report reconfigurable microwave resonators that are electrically tuned by organic electrochemical transistors. The devices are fabricated via inkjet printing onto polyimide substrates using commercial metal nanoparticle and conducting polymer inks. By applying electrostatic gating to the polymer—a mixed ion–electron conductor—we show that the amplitude and frequency of different microwave resonant structures, including individual magnetic and electric split-ring resonators as well as a metasurface, can be modulated in the sub-5-GHz range.

电可调元设备可以为电子和电磁系统增加新的功能，例如天线和隐形技术。然而，当前的微波元器件基于需要复杂且昂贵的制造工艺的材料，并且与柔性平台上的大面积和高通量沉积技术不兼容。在这里，我们报告了由有机电化学晶体管电调谐的可重构微波谐振器。这些器件是使用商业金属纳米颗粒和导电聚合物油墨通过喷墨印刷到聚酰亚胺基板上制造的。通过对聚合物（一种混合的离子-电子导体）应用静电门控，我们展示了不同微波谐振结构的振幅和频率，