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Dielectric Constant Measurement and Error Analysis of 3D-Printing Materials For Microwave Applications

机译：微波3D打印材料的介电常数测量和误差分析

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摘要

To facilitate the using of 3D-printing process in the design and implementation of microwave components, this paper presents the measurement of the complex dielectric constant of 3D-printing non-magnetic materials. A rectangular waveguide based transmission line method has been used, through which the dielectric constant can be retrieved from the measured $S$-parameters of the transmission line filled with the 3D-printing material. The calibration of referenced phase plane has been discussed, and two empirical formulas have been introduced to improve the measurement accuracy. The proposed method has been experimentally verified, and a much smoother result has been achieved when comparing with the counterpart result obtained by a commercial software.
机译：为了方便在微波组件的设计和实现中使用3D打印过程，本文介绍了3D打印非磁性材料的复介电常数的测量方法。已经使用了基于矩形波导的传输线方法，通过该方法可以从测得的值中获取介电常数 $ S $ -填充3D打印材料的传输线参数。讨论了参考相平面的校准，并引入了两个经验公式以提高测量精度。该方法已通过实验验证，与商用软件获得的结果相比，获得了更为平滑的结果。

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