Microwave broadband dielectric spectroscopy (MBDS) is generally recognized as an experimental method to characterize different materials (solids and liquids) according to their dielectric properties [1]. The dielectric properties of many materials over the RF/microwave frequency range are uniquely defined. As a result, using the MBDS technique, the complex relative permittivity of a material under test (MUT) is extracted as a function of frequency. Due to its nondestructive and real-time nature, MBDS is promising for a variety of applications, such as chemical/biological sensing, oil exploration and processing, food and drug quality control, disease diagnosis, and biothreat detection [2]-[5].

中文翻译：

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宽带介电谱：微波时域技术的最新进展

微波宽带介电谱（MBDS）通常被认为是一种根据其介电特性表征不同材料（固体和液体）的实验方法[1]。唯一定义了许多材料在RF /微波频率范围内的介电特性。结果，使用MBDS技术，提取了被测材料（MUT）的复数相对介电常数与频率的关系。由于MBDS具有非破坏性和实时性，它有望在多种应用中使用，例如化学/生物传感，石油勘探和加工，食品和药物质量控制，疾病诊断以及生物威胁检测[2]-[5] 。