In the present study, a wearable coplanar waveguide fed flexible microstrip antenna is proposed, which is based on the floating‐ground backplane. When the antenna is placed on a high‐loss human body, the antenna maintains reasonable impedance matching and exhibits a peak gain of 5.6 dBi. Moreover, the performance of the antenna under different bending radii and crumpling conditions is also analyzed. The simulation and experimental results show that the bending and crumpling have little effect on the impedance bandwidth and radiation pattern of the proposed antenna. Accordingly, it is concluded that the proposed antenna has great robustness. Furthermore, it is found that the proposed floating‐ground backplane structure significantly reduces the backward radiation of the planar antenna and enables the antenna to obtain a very low specific absorption rate (SAR) and increase the antenna gain. It should be indicated that antennas with great robustness, very low SAR, and small size are ideal candidates for wearable applications.

中文翻译：

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基于浮地背板的可穿戴柔性微带天线

在本研究中，提出了一种基于浮地背板的可穿戴共面波导馈电柔性微带天线。将天线放在高损耗的人体上时，天线会保持合理的阻抗匹配，并具有5​​.6 dBi的峰值增益。此外，还分析了天线在不同弯曲半径和弯曲条件下的性能。仿真和实验结果表明，弯曲和折皱对所提出天线的阻抗带宽和辐射方向图影响很小。因此，可以得出结论，提出的天线具有很大的鲁棒性。此外，结果发现，所提出的浮地背板结构显着降低了平面天线的向后辐射，并使天线可以获得非常低的比吸收率（SAR），并提高了天线增益。应该指出的是，具有高鲁棒性，非常低的SAR和小尺寸的天线是可穿戴应用的理想选择。