The temperature dependence of the dielectric parameters of tissues and tissue-mimicking phantoms is very important for non-invasive temperature measurement in medical applications using microwaves. We performed measurements of this dependence in the temperature range of 25–50°C using distilled water as a reference liquid commonly used in dielectric property studies. The results were compared with the literature model in the frequency range of 150–3000 MHz. Using this method, the temperature dependence of dielectric parameters of a new muscle tissue-mimicking phantom based on agar, polyethylene powder, and polysaccharide material TX-151 was measured in the temperature range of 25–50°C. The temperature dependence of the dielectric properties of this new muscle phantom was fitted to that of the two-pole Cole–Cole model and the deviation of the results between measured and modeled data was quantified.

中文翻译：

---

肌肉组织模型的温度依赖性介电光谱

组织和模拟组织模型的介电参数的温度依赖性对于使用微波的医疗应用中的无创温度测量非常重要。我们使用蒸馏水作为介电性能研究中常用的参考液体，在 25-50°C 的温度范围内测量了这种依赖性。在 150-3000 MHz 的频率范围内将结果与文献模型进行了比较。使用这种方法，在 25–50°C 的温度范围内测量了基于琼脂、聚乙烯粉末和多糖材料 TX-151 的新型肌肉组织模拟模型的介电参数的温度依赖性。