Temperature dependence of the permittivity and loss tangent of high-permittivity materials at terahertz frequencies
Temperature dependence of the permittivity and loss tangent of high-permittivity materials at terahertz frequencies
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DOI：
10.1109/tmtt.2005.845752
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发表时间：
2005-04-01
影响因子：
4.3
通讯作者：
Kurz, H
中科院分区：
文献类型：
--
作者：
Berdel, K;Rivas, JG;Kurz, H
分析了三种低成本和高介电常数材料（钛酸锆锡、氧化铝和二氧化钛）在太赫兹频率范围内的介电常数和损耗切线的温度依赖性。这种介电材料在微波和太赫兹系统和组件中有不同的应用。它们在不同环境条件下或空间应用中的有效使用需要对温度依赖性有详细的了解。在这里，使用宽带太赫兹时域光谱在10到323 K的温度范围内进行测量。结果表明，钛酸锆锡和氧化铝具有较好的介电常数热稳定性，而二氧化钛的介电常数对温度有较强的依赖性。
An analysis including the temperature dependence of the permittivity and loss tangent of three low-cost and high-permittivity, materials (zirconium-tin-titanate, alumina, and titanium-dioxide) in the terahertz frequency range is presented. Such dielectric materials find varied applications in microwave and terahertz systems and components. Their effective use under varying environmental conditions or in space applications requires a detailed knowledge about temperature dependencies. Here, measurements using broad-band terahertz time-domain spectroscopy are presented in the temperature range from 10 to 323 K. It is shown that zirconium-tin-titanate and alumina provide a good thermal stability of the permittivity, whereas the permittivity of titanium-dioxide exhibits a strong dependence on the temperature.