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A new 60 GHz open-resonator technique for precision permittivity and loss-tangent measurement

机译:用于精确介电常数和损耗角正切测量的新型60 GHz开放式谐振器技术

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A new open-resonator technique is described for the determination of loss tangent and dielectric permittivity of low-absorbing materials at 60 GHz. Micrometer and the stepping-motor-driven flat mirror in the Fabry-Perot cavity call be scanned at a very small step (to change the cavity length or mirror spacing) to provide a complete interferogram over the entire resonance peak profile. This method is termed here as a new, full cavity-length variation technique. The minimum step size is 20 nm and the variation range of the cavity length is about 25 mm, which can cover eight fundamental resonance modes. With this technique, all resonance curves in the variation range of the cavity can be studied more completely than with any other previous technique. The technique requires only fixed frequency sources, and eliminates the need for a broader band, stable, continually tunable frequency source.
机译:描述了一种新的开放式谐振器技术,用于确定60 GHz下低吸收材料的损耗角正切和介电常数。 Fabry-Perot腔中的千分尺和步进电机驱动的平面镜将以非常小的步长进行扫描(以更改腔长度或镜间距),以在整个共振峰轮廓上提供完整的干涉图。这种方法在这里被称为新的全腔长变化技术。最小步长为20 nm,腔长度的变化范围约为25 mm,可以覆盖八个基本共振模式。使用这种技术,可以比使用任何其他以前的技术更完整地研究腔变化范围内的所有共振曲线。该技术只需要固定频率源,而无需使用更宽频带,稳定,可连续调谐的频率源。

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