확장된 TRL 오차 수정 방법

An Extended TRL Calibration Method

  • 김유신 (한밭대학교 정보통신전문대학원) ;
  • 이창석 (한밭대학교 정보통신전문대학원)
  • Kim Yusin (Graduate School of Information & Communications, Hanbat National University) ;
  • Lee Chang-Seok (Graduate School of Information & Communications, Hanbat National University)
  • 발행 : 2005.11.01

초록

TRL 오차 수정 방법은 PCB 위에 제작된 고주파 소자를 측정할 때 많이 사용되는 방법이지만 오차 수정을 위해 제작된 표준 전송선 패턴의 특성 임피던스를 알아야만 보다 정확하게 측정 오차를 수정할 수 있다. 기존의 방법에서는 저항을 종단 처리한 표준 패턴을 추가로 이용하여 전송선의 단위 길이당 커패시턴스를 계산하고 주파수에 대해 fitting하는 방법으로 표준 전송선의 특성 임피던스를 계산하고 있으나 제작상의 부정확성에 의해 추출된 특성 임피던스가 영향을 받고 있음을 확인하였다. 본 논문에서는 측정된 S-parameter를 이용하여 제작상의 부정확성을 줄일 수 있고 기존 방법보다 정확한 특성 임피던스를 추출할 수 있다.

TRL error correction method is widely used for measuring high frequency device mounted on PCB. In order to correct error more precisely, the characteristic impedance of standard transmission line should be known mounted for error correction. The capacitance per the unit length of transmission line is calculated by using standard transmission line which terminate resistor additionally at previous method and the characteristic impedance of standard transmission line is calculated with fitting method according to frequency, but the characteristic impedance extracted by a manufacturing inaccuracy is influenced. In this study, a novel method can reduce the manufacturing inaccuracy using measured s-parameters and can extract more accurate characteristic impedance than the previous method.

키워드

참고문헌

  1. G. F. Engen, C. A Hoer, 'Thru-reflect-line: An improved technique for calibration of the dual six-port automatic network analyzer', IEEE Trans. Microwave Theory Tech., vol. MTT-27, pp. 987-993, Dec. 1979
  2. F. Mesa, D. R. Jackson, 'A novel approach for calculating the characteristic impedance of printedcircuit lines', IEEE Microwave and Wireless Components Letters, vol. 15, pp. 283-285, Apr. 2005 https://doi.org/10.1109/LMWC.2005.845751
  3. D. F. Williams, B. K. Alpert, U. Arz, D. K. Walker, and H. Grabinski, 'Causal characteristic impedance of planar transmission lines', IEEE Trans on Advanced Packaging, vol. 26, pp. 165-171, May 2003 https://doi.org/10.1109/TADVP.2003.817339
  4. R. B. Marks, D. F. Williams, 'Characteristic impedance determination using propagation constant measurement', IEEE Microwave Guided Wave Lett., vol. 1, pp. 141-143, Jun. 1991 https://doi.org/10.1109/75.91092
  5. D. F. Williams, R. B. Marks, 'Accurate transmission line characterization', IEEE Microwave Guided Wave Lett., vol. 8, pp. 247-249, Aug. 1993
  6. D. F. Williams, R. B. Marks, 'Transmission line capacitance measurement', IEEE Microwave Guided Wave Lett., vol. 1, pp. 243-245, Sep. 1991 https://doi.org/10.1109/75.84601
  7. D. Kostevc, 'Simple extension of TRL calibration method of V ANA', IEEE Electronics Lett., vol. 31, pp. 634-635, Apr. 1995 https://doi.org/10.1049/el:19950464
  8. J. M. Heinola, K. P. Latti, P. Silventoinen, J. P. Strom, and M. Kettunen, 'A new method to measure dielectric constant and dissipation factor of printed circuit board laminate material in function of temperature and frequency', in Proc. 9th Int. Adv. Packag. Mater. Symp., pp. 235-240, 2004 https://doi.org/10.1109/ISAPM.2004.1288019