Eight-item error calibration method for vector network analyzer and N+1 receiver structure

• Main Authors: Li Shubiao, Zhao Lijun, Guo Yongrui, Zhuang Zhiyuan, Yuan Guoping, Liu Dan, Yang Mingfei, Li Mingtai
• Format: Patent
• Language: Chinese; English
• Published: 10.08.2016
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

The invention provides an eight-item error calibration method for a vector network analyzer and an N+1 receiver structure. The method comprises: step one, a precision calibration element is used for carrying out insertion type SOLT calibration at a port 1 and a port 2 of a vector network analyzer, thereby obtaining all ten kinds of errors; step two, on the basis of the ten kinds of errors obtained at the step one and a formula (1), switching error items gamma (2,1) and gamma (1,2); step three, solution to the switching error items is carried out and a system error is calculated to obtain eight kinds of errors; step four, with a formula (2), information of directivity, source matching, reflection tracking, and a transmission tracking error of a ten-error model are obtained, and then a load matching error of the ten-error model is obtained by using a formula (4); and step five, a measured element parameter is measured and a system error is used for carrying out correction. According to the invention, under the