Patent ID: 11876278
Assignee: RAYTHEON COMPANY
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A balun comprising:
a center conductor that passes through a printed wiring board comprised of multiple dielectric layers; and
cage vias arranged relative to the center conductor, the cage vias comprising:
a first set of cage vias that extend between an unbalanced connection to the balun and a balanced connection to the balun, the first set of cage vias being part of a first circular arc and being connected. to electrical ground through a first ground ring; and
a second set of cage vias that extend from the unbalanced connection part-way through the printed wiring board, the second set of cage vias being part of a second circular arc and being connected to the electrical ground through a second ground ring, the second circular arc being longer than the first circular arc.