Free-Space Unknown Thru Measurement Using Planar Offset Short for Material Characterization

Author:

Kang Jin-Seob

Abstract

Material characterization requires the proper calibration of a material measurement system. This paper describes a free-space unknown thru measurement method using three independent planar metal offset shorts for calibrating a free-space material measurement system. This method is validated by comparing the measurement results with those of the TRL (thru-reflect-line) measurement method for two glass plates of 2.780 mm and 4.775 mm thickness in W-band (75–110 GHz). This can be an affordable and effective alternative to conventional free-space material measurement methods because the precision fabrication of a planar offset short is more feasible and inexpensive than building a precise positioning system in a free-space material measurement system. One can use this measurement method up to a high-frequency range that the fabrication accuracy of a planar offset short is acceptable.

Funder

Ministry of Trade, Industry and Energy

Korea Research Institute of Standards and Science

Publisher

Korean Institute of Electromagnetic Engineering and Science

Subject

Electrical and Electronic Engineering,Computer Networks and Communications,Instrumentation,Radiation

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