Patent 9869707 was granted and assigned to Vayyar on January, 2018 by the United States Patent and Trademark Office.
There are provided methods and devices for realizing a broadband directional bridge, and a network analyzer test set based on the directional bridge structure. In some embodiments the directional bridge comprises a resistive bridge and a balun. The balun further comprises a transmission line which is surrounded by ferrite material and is implemented on a main printed circuit board (PCB).