AI Article Synopsis
- The article discusses a wireless human motion detection system using a stretchable patch antenna designed with a Hilbert fractal pattern, allowing for 40% mechanical stretchability and a gain of 2.95 dB at 2.5 GHz.
- The fractal design enhances the antenna's performance and adaptability to different strains, showing minimal impact from bending while being sensitive to tension.
- The effectiveness of this system in detecting joint motions has been proven through experiments with a wireless on-body strain sensor.
Article Abstract
This article describes the implementation of a wireless human motion detection with interference resistance to untargeted deformations based on a stretchable patch antenna with fractal design. By rationally incorporating the Hilbert fractal pattern in the conductive patch and ground plane, the patch antenna shows a mechanical stretchability of ∼40% and a maximum gain of 2.95 dB at 2.5 GHz. Furthermore, the influence of the fractal order on the mechanical stretchability and radiation properties of the stretchable patch antenna is discussed. The resonant frequency of the stretchable fractal antenna demonstrates highly selective sensitivity to different deformations; i.e., it remains almost unchanged with bending deformations and is linearly dependent on the tensile strain. Remote detection of joint motions is experimentally verified by a wireless on-body strain sensor based on the fractal design-based stretchable microstrip antenna.
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| http://dx.doi.org/10.1021/acsami.3c04292 | DOI Listing |
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