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本文分析了影响四分之一波长耦合线定向耦合器方向性的诸因素。采用电容螺钉提高方向性。导出了确定电容螺钉所在位置的计算公式。实验结果和理论计算较吻合。
This paper analyzes the factors that affect the directionality of a quarter-wavelength coupled line directional coupler. Use capacitive screws to improve directivity. The formula to determine the location of the capacitor screw is derived. The experimental results are in good agreement with the theoretical calculations.