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IEC Standard 96-1에 따른 RF 케이블의 표면전달 임피던스 측정
강진섭,김정환,강웅택,박정일 한국전자파학회 2000 한국전자파학회논문지 Vol.11 No.6
본 논문에서는 IEC(International Electrotechnical Commission) Standard 96-1에 규정된 RF 케이블의 표현전달 임피던스 측정법을 설명하고, 1 MHz ~ 30MHz 동작주파수범위에서 설계 제작된 triaxial fixture를 사용해 전압 및 산란계수를 측정하여 상용 RF 케이블의 표면전달 임피던스를 얻었다. In this paper, surface transfer impedance measurement of RF cables according to IEC(International Electrotechnical Commission) Standard 96-1 is described and surface transfer impedance of a commercial RF cable is obtained from the measured voltage and scattering parameter with a triaxial fixture fabricated in the operating frequency range from 1 MHz to 30 MHz.
Free-Space Two-Tier One-Port Calibration Using a Planar Offset Short for Material Measurement
강진섭 한국전자파학회 2022 Journal of Electromagnetic Engineering and Science Vol.22 No.6
The scattering parameters of a material under test (MUT) are prerequisites for characterizing the material parameters of the MUT. This paper describes a free-space two-tier one-port calibration method using a planar offset short as a free-space calculable reflect standard for measuring the scattering parameters of an MUT from the two successive one-port calibrations of a free-space material measurement system without a precise positioning system in free space. The two-tier one-port calibration method is validated by comparing the measurement results with those of the thru-reflect-line (TRL) calibration method for two reciprocal MUTs (glass plates of 2.780 mm and 4.775 mm thickness) in the W-band (75–110 GHz). Good agreement between the measurement results from the two calibration methods demonstrates that the free-space two-tier one-port calibration method using a planar offset short can be a feasible and effective alternative to the conventional free-space two-port calibration methods.