Patent ID: 8482367

Claim:
A stripline for radio-frequency signals, including: a signal conductor and at least one earth conductor, both being arranged on a substrate made from an electrically insulating material; at least one hole being made in the substrate, said hole at least partially filled with an electrically conducting material; an electrically conducting connection being made from said at least one earth conductor to the electrically conducting material; and said stripline being co-planar and having said signal conductor arranged between two earth conductors, with holes which are spaced apart from one another being made along both earth conductors for the entire length thereof, the substrate provided with the co-planar stripline being arranged in a tubular outer-conductor member made from an electrically conducting material in such a way that the earth conductors are electrically connected to the outer-conductor member and the signal conductor is arranged at least approximately co-axially to the tubular outer-conductor member.