Thru-Reflection-unequal-Line (TRuL) calibration method with asymmetric R calibrator
Date Issued
2006
Date
2006
Author(s)
Chou, Yien-Tien
DOI
en-US
Abstract
要使用傳統的多模TRL校準方法有一個先決條件，就是訊號在傳輸線中傳遞時，不同模態的傳播常數必須不同，然而，一般來說，在多埠網路中，每一個埠中的傳播常數可能相等。因此針對在相同傳播常數的狀況，我們提出穿透-非對稱反射-不等長線多埠校準方法。在校準過程中，使用不等長線來產生不同特徵值，這個步驟可以大大的簡化計算量。而非對稱反射較準器被使用來簡化正負號的判定。以FR4及Rogers RO4003C製作的分支偶合器來驗證TRuL校準方法，可發現散射矩陣的量測值和模擬值非常的符合。
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.
Subjects
多埠校準方法
multimode TRL calibration
TRuL
Type
thesis
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