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在主电路板上再设置一块印制电路板,可以构成一种新型的定向耦合器。实验结果与用边界元法计算的结果相当吻合。在一个很宽的耦合参数范围内,都可以设计出这种紧凑和低成本定向耦合器。
In the main circuit board and then set a printed circuit board, can form a new type of directional coupler. The experimental results are in good agreement with the results calculated by the boundary element method. This compact and low cost directional coupler can be designed over a wide range of coupling parameters.