Accuracy in Permeability Measurement by a Combined Microstrip Line-Coaxial Conductor Method

作者：Kanemaru Keigo^*; Kuramoto Atsushi; Kanie Tomohiko; Noro Yuichi; Takeo Takashi

来源：IEICE - Transactions on Electronics, 2011, E94C(3): 327-333.

DOI：10.1587/transele.E94.C.327

• coaxial conductor
• error correction
• measurement error microstrip line
• permeability measurement

In this paper, accuracy or error in permeability measurement using a combined microstrip line-coaxial conductor method was investigated. The measurement circuit used in this study is composed of a microstrip line (MSL) circuit and a grounded metal pipe with a center conductor passing through it coaxially. A sample is placed between the metal pipe and the center conductor. We evaluated the measurement accuracy for this measurement arrangement with electromagnetic simulation for the case where there are gaps between the sample and the holder. As a result, it has been shown that the normalized errors for this method have similar gap size dependence to the conventional coaxial method, but are about 10 to 20 percent greater than the coaxial method With a view to improving the measurement accuracy, a correction method for the error is also discussed.

• 出版日期2011-3