Method for expanding noise coefficient measurement range

• Main Authors: LIANG SHENGLI, XUE LONG, ZHENG LIYING, SONG QING'E, LI WENJUN, WEI LIANCHENG
• Format: Patent
• Language: Chinese; English
• Published: 07.03.2023
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses a method for expanding a noise coefficient measurement range, and belongs to the technical field of noise coefficient measurement. A noise source, a noise coefficient tester and a low noise amplifier (hereinafter referred to as LNA) are adopted, the noise coefficient measurement range of the existing technical scheme is expanded, and accurate measurement of a measured piece with the noise coefficient larger than 30 dB is achieved. The method is provided by combining the requirement background of the domestic large noise coefficient measurement technology, the technical bottleneck of the existing technical scheme in the aspect of large noise coefficient measurement is solved, the requirement for accurate measurement of large noise coefficient indexes in test scenes such as a power amplifier and an automatic test system is met, and the application range of a Y-factor method noise coefficient tester is greatly expanded. 本发明公开了一种扩展噪声系数测量范围的方法，属于噪声系数测量技术领域；采用噪声源、噪声系数测试仪和低噪声放大器(以下简称LNA)，扩展了现