A Strip Line Broadside Hybrid Coupler Tolerant to Displacement Error and Thickness Variation in Multi-Layered LTCC Substrate

概要

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A strip line broadside hybrid coupler which is tolerant to manufacturing errors in a multi-layered LTCC substrate has been developed. The tolerance to a displacement error and a thickness variation in the multi-layered LTCC substrate can be achieved by using the tandem arrangement of diagonally shifted coupled lines with adjacent ground walls. It has been demonstrated that the coupling deviation from designed characteristics in our proposed hybrid coupler is very small.
（社）電子情報通信学会の論文
2008-10-01