SPE-16-08-044/A/WY

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The footprint and reference layout are provided in the figures 2 and 3, respectively. These

connections are shown schematically in Figure 1. A bill of material is presented below in Table 1.

It is critical to match the trace lengths of the 0°/90° feeds for each band, within a +/-0.5mm

tolerance. The feed lengths between bands do not need to be matched. For example, the trace

length between L1-0° and X1 pin 1 needs to be the same length (within +/-0.5mm) as the trace

length between L1-90° and X1 pin 2. But the trace length between L1-0° and X1 pin 1 does not

need to be the same as the trace length between L2-0° and X2 pin 1.

couplers X1 and X2 follow the manufacturer’s datasheet reference.