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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2019-10-16
The Calibration of the Coupling Coefficients of the Mode-Selective Coupler Without the Single Mode Exciter
By
Ling-Na Yue,

    Dr. Ling-Na Yue

    College of Physical Electronics

    University of Electronic Science and Technology of China

    China

    Homepage

Wen-Xiang Wang,

    Dr. Wen-Xiang Wang

    School of Physical Electronics

    University of Electronic Science and Technology of China

    China

    Homepage

Jin Xu,

    Dr. Jin Xu

    College of Physical Electronics

    University of Electronic Science and Technology of China

    China

    Homepage

Hai-Rong Yin,

    Dr. Hai-Rong Yin

    School of Physical Electronics

    University of Electronic Science and Technology of China

    China

    Homepage

Guoqing Zhao,

    Dr. Guoqing Zhao

    National Key Laboratory of Science and Technology on Vacuum Electronics

    University of Electronic Science and Technology of China

    China

    Homepage

Yan-Yu Wei

    Prof. Yan-Yu Wei

    School of Physical Electronics

    University of Electronic Science and Technology of China

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 87, 115-121, 2019
doi:10.2528/PIERL19051506 | Google Scholar

Abstract
As one of the important means in discriminating every mode in a high power microwave (HPM) multimode system, utilizing a mode-selective directional coupler to quantitatively analyze multi-modes and power measurement has been proposed. The first step of this method is to calibrate the coupling coefficients of each coupled mode in the HPM system. Moreover, the conventional calibrating method must make the corresponding single mode exciter or mode generator. In this manuscript, a different calibrating method is presented by measuring the output power from each output port of two back-to-back identical mode-selective couplers, including the backward wave power, then the coupling coefficients of each coupled mode can be calculated by combining and solving equations. In this way, it is not necessary to manufacture the single mode exciter or mode generator for each mode in the HPM system, and also to repeat iteration solution; therefore, this method is more precise, convenient, efficient, and has lower cost than the current other methods.
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Citation
Ling-Na Yue, Wen-Xiang Wang, Jin Xu, Hai-Rong Yin, Guoqing Zhao, and Yan-Yu Wei, "The Calibration of the Coupling Coefficients of the Mode-Selective Coupler Without the Single Mode Exciter," Progress In Electromagnetics Research Letters, Vol. 87, 115-121, 2019.
doi:10.2528/PIERL19051506
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