The 28 Type N series from Anritsu are Coaxial Terminations with N type-male/female connectors. They operate from DC to 18 GHz with a SWR of 1.03:1. These precision, metrology-grade terminations are used in measurement systems that need to achieve the smallest possible reflections. Their excellent match makes them ideal as a reference for fault location measurements on scalar network analyzers. They are available in two dimensions - 5.2 x 2.2 cm and 4.8 x 1.6 cm.
