Strain-Insensitive Hierarchically Structured Stretchable Microstrip Antennas for Robust Wireless Communication

• DOI: 10.1007/s40820-021-00631-5
• Publication Date: 2021-04-09T12:03:06Z
• Authors: Jia Zhu; Senhao Zhang; Ning Yi; Chaoyun Song; Donghai Qiu; Zhihui Hu; Bowen Li; Chenghao Xing; Hongbo Yang; Qing Wang; Huanyu Cheng
• Keywords: Stretchable electronics; Flexible Electronics; Patch antenna; Power transmission

As the key component of wireless data transmission and powering, stretchable antennas play an indispensable role in flexible/stretchable electronics. However, they often suffer from frequency detuning upon mechanical deformations; thus, their applications are limited to sensing with capabilities remaining elusive. Here, a hierarchically structured microstrip antenna meshed patterns arranged arched shape showcases tunable resonance deformations improved overall stretchability. The almost unchanged during enables robust on-body communication RF energy harvesting, whereas rapid changing allows for sensing. proposed was demonstrated communicate wirelessly transmitter (input power - 3 dBm) efficiently (i.e., receiving higher than 100 dBm over distance m) on human bodies even 25% stretching. flexibility structural engineering combined coupled mechanical-electromagnetic simulations, provides versatile toolkit design other potential devices