Optimised Calibration Method for Six-Port Junction  

作　　者：熊祥正 廖成 肖华清 

机构地区：[1]Institute of Electromagnetic Field and Microwave Technology, Southwest Jiaotong University

出　　处：《Journal of Southwest Jiaotong University(English Edition)》2008年第4期392-397,共6页西南交通大学学报（英文版）

基　　金：The National Natural Science Foundation of China (No.60441006)

摘　　要：A dual-tone technique is used to produce multi-samples in optimising calibration of six-port junction. More accurate results are achieved by using the least-square method and excluding those samples which may cause bigger errors. A 0.80 -1.10 GHz microwave integrated circuit （MIC） six-port reflectometer is constructed. Nine test samples are used in the measurement. With Engen＇s calibration procedure, the difference between the HP8510 and the six-port reflectrometer is in the order of 0.20 dB/1.5° for most cases, above 0.50 dB/5.0° at boundary frequency. With the optimised method, the difference is less than 0. 10 dB/1.0° for most cases, and the biggest error is 0.42 dB/2.1° for boundary frequencies.A dual-tone technique is used to produce multi-samples in optimising calibration of six-port junction. More accurate results are achieved by using the least-square method and excluding those samples which may cause bigger errors. A 0.80 -1.10 GHz microwave integrated circuit （MIC） six-port reflectometer is constructed. Nine test samples are used in the measurement. With Engen＇s calibration procedure, the difference between the HP8510 and the six-port reflectrometer is in the order of 0.20 dB/1.5° for most cases, above 0.50 dB/5.0° at boundary frequency. With the optimised method, the difference is less than 0. 10 dB/1.0° for most cases, and the biggest error is 0.42 dB/2.1° for boundary frequencies.

关 键 词：Six-port junction Calibration method Dual-tone technique 

分 类 号：TM931[电气工程—电力电子与电力传动]