Air Line 임피던스 표준을 이용한 동축형 부하의 임피던스 정밀 측정

Precise Impedance Measurement of Coaxial Loads using Air Line Impedance Standards

  • 강진섭 (한국표준과학연구원 전자기표준부 전자파연구실) ;
  • 김정환 (한국표준과학연구원 전자기표준부 전자파연구실)
  • 발행 : 2000.08.01

초록

본 논문에서는 offset open과 offset short를 반사 표준으로 사용하고 길이가 다른 여러개의 reference air line을 임피던스 표준으로 사용한 동축형 부하의 임피던스 정밀 측정법을 제안했다. 5~1,000MHz 주파수영역에서 SWR bridge(5~400MHz)와 벡터 회로망분석기(100~1,000MHz)를 사용하여 얻은 power sensor와 thermistor mount의 입력 임피던스를 제시했다.

In this paper, a method for the precise impedance measurement of coaxial loads using an offset open and short as the reflection standards and reference air lines with different lengths as the impedance standards is proposed. Measured input impedances of power sensors and thermistor mounts obtained from SWR bridges(5~400MHz) and a vector network analyzer(100~1,000MHz) are presented in the frequency range of 5MHz to 1,000 MHz.

키워드

참고문헌

  1. IEE Electrical measurement series 2 Microwave Impedance measurement P. I. Somlo;J. D. Hunter
  2. IEEE Trans. on Microwave Theory Tech. v.27 no.12 Thru-reflect-line:An improved technique for calibrating the dual six-port automatic network analyzer G. F. Engen;C. A. Hoer
  3. Network Analysis: Specifying calibration standards for the HP 8510 network analyzer Hewlett-Packard
  4. Elec. Lett. v.27 no.5 Simple method for correction of reflection values by means of coaxial quarter wavelength air line impedance standards W. Peinelt;U. Stumper
  5. IEEE Trans. on Instrum. Meas. v.42 no.4 Correction of the RF complex reflection coefficient using air line impedance standards U. Stumper;W. Peinelt
  6. IEEE Trans. on Microwave Theory Tech. v.43 no.4 The propagation constant of a lossy coaxial line with a thick outer conductor W. C. Daywitt
  7. IEEE Trans. on Microwave Theory Tech. v.42 no.2 Measurement of the characteristic impedance of coaxial air line reference J. R. Juroshek;G. M. Free
  8. IEEE Trans. on Microwave Theory Tech. v.38 no.11 First-order symmetric modes for a slightly lossy coaxial transmission line W. C. Daywitt
  9. IEEE Trans. on Microwave Theory Tech. v.39 no.8 Exact principal mode field for a lossy coaxial line W. C. Daywitt
  10. User's Reference Guide for ODRPACK Version 2.01 Software for Weighted Orthogonal Distance Regression P. T. Boggs;R. H. Byrd;J. E. Rogers;R. B. Schnabel