CAJ | 학술논문

SYSTEMⅡ功率传递系统是微波小功率计量领域内应用比较广泛的测试系统之一，通过对传统中功率计量方法的分析研究，提出了利用SYSTEMⅡ功率传递系统实现中功率计量的构建方案。采用低反射系数等效信号源结构，构成反射系数小、输出稳定、输出电平可调的中功率等效信号源；采用中功率衰减器和SYSTEMⅡ功率传递系统中含有的高精度终端式小功率座构成中功率传递标准，通过交替比较法，实现微波中功率计的高精度自动校准。
SYSTEMⅡ공솔전체계통시미파소공솔계량영역내응용비교엄범적측시계통지일，통과대전통중공솔계량방법적분석연구，제출료이용SYSTEMⅡ공솔전체계통실현중공솔계량적구건방안。채용저반사계수등효신호원결구，구성반사계수소、수출은정、수출전평가조적중공솔등효신호원；채용중공솔쇠감기화SYSTEMⅡ공솔전체계통중함유적고정도종단식소공솔좌구성중공솔전체표준，통과교체비교법，실현미파중공솔계적고정도자동교준。
SYSTEMⅡpower transfer system is one of widely used schemes in field of calibration for microwave power sensors. By analyzing the theory of the SYSTEMⅡand traditional calibration method of medium power, a scheme was brought forward to develop calibration of medium power using SYSTEMⅡ power transfer system. Low reflectance equivalent signal source is adopted to make medium power equivalent signal source with low reflectance, steady output and adjustable output electrical level. Medium power attenuator and the high-precision terminal power sensor in SYSTEMⅡpower transfer system are used to make medium power transfor standard. By means of alternate comparison, the high-preci-sion automatic calibration can be realized for medium power sensors.