A 3D printed disk‐loaded monopole antenna by injecting liquid metal alloy is designed. The monopole antenna is operating at 2.4 GHz for wireless sensor network applications. The proposed antenna mainly comprises three parts: a hollow dielectric shell, liquid metal alloy, and a feeder. The hollow dielectric shell is fabricated by 3D printing technique. Liquid metal alloy EGaIn is filled in the hollow dielectric shell to form the antenna radiator. An SMA connector with square flange is inserted into the hollow dielectric shell to feed the antenna. A prototype antenna is fabricated and experimentally measured for verification. Measured results show that the frequency of the designed antenna covers from 2.36 to 2.6 GHz, which is suitable for commercial 2.4 GHz wireless communication applications.

中文翻译：

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基于3D打印技术的液态金属圆盘加载单极天线

设计了一种通过注入液态金属合金制成的3D打印的磁盘式单极天线。单极天线在无线传感器网络应用中的工作频率为2.4 GHz。所提出的天线主要包括三个部分：空心电介质壳，液态金属合金和馈线。中空介电壳通过3D打印技术制造。液态金属合金EGaIn填充在空心介电壳中，以形成天线辐射器。将具有方形法兰的SMA连接器插入空心介电外壳中，以为天线供电。制造原型天线并进行实验测量以进行验证。测量结果表明，设计天线的频率范围为2.36至2.6 GHz，适用于商业2.4 GHz无线通信应用。