Patent ID: 8232851

Claim:
A Lange coupler, comprising: a first plurality of lines on a first level; and a second plurality of lines on a second level, each of the second plurality of lines on the second level corresponding with a line from the first plurality of lines on the first level, wherein at least two lines on the first level are coupled to at least two lines on the second level, wherein each of the at least two lines on the first level is coupled to at least one non-corresponding line on the first level and at least one non-corresponding line on the second level, wherein the coupling of the at least two lines on the first level to the at least two lines on the second level form at least two sets of shorted lines extending between the first level and the second level, a first set of shorted lines having an end in the first level and an opposite end in the second level, a second set of shorted lines having an end in the first level and an opposite end in the second level, the coupling of the first set of shorted lines to the first level and the second level forming a cross-coupling figuration with the coupling of the second set of shorted lines to the first level and the second level.