Thru-Reflection-unequal-Line (TRuL) calibration method with asymmetric R calibrator

• Main Authors: Yien-Tien Chou, 周晏田
• Other Authors: Hsin-Chia Lu
• Format: Others
• Language: en_US
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/53515599502503650187

碩士 === 國立臺灣大學 === 電子工程學研究所 === 94 === The multimode TRL calibration methods is known as an approach for the measurement of multi-conductor transmission line devices. The propagation constants of different modes propagating along the multi-conductor transmission line must be different when using this method. However, in general multi-port networks, the propagating constants at each port may be equal. The thru-reflection-unequal-line (TRuL) calibration method with asymmetric R calibrator for the calibration of the equal propagation constant case is proposed. Lines of unequal length are used to make the eigenvalues unequal during calibration process. This will greatly simplify the calculation. Asymmetric “R” calibrator is proposed to simplify the sign ambiguity resolution process. The measured scattering matrices of a branch line coupler on FR4 and Rogers RO4003C substrate using proposed “TRuL” calibration method shows good agreement with EM simulation.