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US08928427B2 Reducing coupling coefficient variation using intended width mismatch 有权
使用预期的宽度失配减少耦合系数变化

Reducing coupling coefficient variation using intended width mismatch
摘要：
A coupler is presented that has high-directivity and low coupling coefficient variation. The coupler includes a first trace with a first edge substantially parallel to a second edge and substantially equal in length to the second edge. The first trace includes a third edge substantially parallel to a fourth edge. The fourth edge is divided into three segments. The outer segments are a first distance from the third edge. The middle segment is a second distance from the third edge. Further, the coupler includes a second trace, which includes a first edge substantially parallel to a second edge and substantially equal in length to the second edge. The second trace includes a third edge substantially parallel to a fourth edge. The fourth edge is divided into three segments. The outer segments are a first distance from the third edge. The middle segment is a second distance from the third edge.
摘要（中）：

提出了具有高方向性和低耦合系数变化的耦合器。 耦合器包括第一迹线，第一迹线具有基本上平行于第二边缘并且基本上等于第二边缘的长度的第一边缘。 第一迹线包括基本上平行于第四边缘的第三边缘。 第四个边缘分为三个部分。 外部段是距离第三边缘的第一距离。 中间段是距离第三边缘的第二个距离。 此外，耦合器包括第二迹线，其包括基本上平行于第二边缘并且在长度上与第二边缘基本相等的第一边缘。 第二迹线包括基本上平行于第四边缘的第三边缘。 第四个边缘分为三个部分。 外部段是距离第三边缘的第一距离。 中间段是距离第三边缘的第二个距离。

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