Antenna probes for power reception from deep tissues for wearable microwave thermometry
Antenna probes for power reception from deep tissues for wearable microwave thermometry
复制标题
用于从深层组织接收功率的天线探头，用于可穿戴微波测温
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
M. Fallahpour
中科院分区：
文献类型：
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作者：
Parisa Momenroodaki;Z. Popovic;M. Fallahpour
本文提出的研究的目标是使用微波辐射测量监测内部体温的可穿戴天线探头的设计过程。从内部组织层接收热黑体辐射是具有挑战性的，因为人体皮肤由于其高导电性和介电常数而主导接收功率。因此，需要一种新的设计方法，用于优先从深层组织层接收热功率的探头，同时最小化表面组织的贡献。设计方法从近场的互易性开始，允许使用体积损失功率密度的模拟来预测黑体辐射。设计了几种带覆盖层的探头，以最大化特定埋层中的体积损耗功率密度。实验在1.4 GHz的安静频段进行，温度跟踪证明和热电偶直接测量皮肤脂肪肌肉幻影相比。
The goal of the research presented in this paper is a design procedure for wearable antenna probes for monitoring internal body temperature using microwave radiometry. Receiving thermal black-body radiation from internal tissue layers is challenging as the human skin dominates the received power due to its high conductivity and permittivity. Therefore, a new design method is needed for probes that receive thermal power preferentially from deep tissue layers, while minimizing the contribution of surface tissues. The design method starts from reciprocity in the near-field, allowing simulations of volume loss power density to be used to predict black-body radiation. Several probes with superstrates are designed in order to maximize the volume loss power density in a specific buried layer. The experiments are performed in the 1.4-GHz quiet band, and temperature tracking is demonstrated and compared to thermocouple direct measurements on a skin-fat-muscle phantom.