This paper proposes a frequency reconfigurable monopole antenna using kirigami technology. The monopole antenna is designed on a three-storey tower and the tower is transformed from a ground mode to the three-storey structure by kirigami. For the ground mode, the horizontal monopole pattern is realized on a two-dimensional plane or floor. For the tower mode, the monopole pattern is transformed to a three-dimensional vertical monopole that is realized on the pillars. In the process of transformation of the tower, the resonant frequency of the antenna is changed because this frequency is determined by the monopole length. The proposed idea is numerically and experimentally demonstrated by realizing the antenna using polyethylene terephthalate (PET) film. The resonant frequency changes from 420 to 530 MHz when the antenna is transformed from the ground to tower modes, respectively. The measured peak gains are −5.08 dBi and 0.76 dBi at the ground and tower modes, respectively. In this work, an architectural three-storey tower is applied to antenna design, and its frequency reconfigurability is achieved by kirigami transformation.

本文提出了一种采用kirigami技术的频率可重构单极天线。单极天线设计在三层塔上，并且通过激折线将塔从地面模式转换为三层结构。对于接地模式，水平单极子图案是在二维平面或地板上实现的。对于塔式模式，单极模式转换为在立柱上实现的三维垂直单极。在铁塔的转换过程中，天线的谐振频率会发生变化，因为该频率由单极长度决定。通过使用聚对苯二甲酸乙二醇酯（PET）薄膜实现天线，在数值上和实验上证明了所提出的想法。当天线分别从地面模式转换为塔式模式时，谐振频率从420 MHz变为530 MHz。在地面模式和塔式模式下，测得的峰值增益分别为−5.08 dBi和0.76 dBi。在这项工作中，将一座三层建筑的塔楼应用于天线设计，并通过kirigami变换实现其频率可重构性。