Patent ID: 9509033
Filing Date: 2016-11-29
CPC Classification: H01P

Claim Text:
1. A balun device comprising: a dielectric base plate; two conductive connection pads formed on said dielectric base plate and connectable respectively with a pair of first signal lines for a pair of differential signals, one of said conductive connection pads being further connectable with a second signal line for a single-ended signal; a printed conductive track that is formed on said dielectric base plate and that interconnects electrically said conductive connection pads; and a conductive ground pattern formed on said dielectric base plate, and surrounded by and spaced apart from said printed conductive track and said conductive connection pads, wherein said conductive ground pattern includes a main pattern portion, and a plurality of extension pattern portions extending outwardly from said main pattern portion; and said printed conductive track is arranged along an outer contour of said conductive ground pattern and is spaced apart from said conductive ground pattern by a predetermined spacing.