Transmission line

A transmission line comprising:

• a substrate including a plurality of insulator layers;
• a mounting electrode on a front layer of the substrate;
• a signal conductor in the substrate;
• a first ground conductor that is provided on the substrate and overlaps with the signal conductor when viewed in a laminating direction of the plurality of insulator layers;
• a first connecting electrode that electrically connects the mounting electrode and the signal conductor with each other and is between the signal conductor and the first ground conductor in the laminating direction;
• a first inter-layer connecting conductor that is electrically connected between the mounting electrode and the first connecting electrode and is bonded to the first connecting electrode;
• and
• a second inter-layer connecting conductor that is electrically connected between the signal conductor and the first connecting electrode, is bonded to the first connecting electrode, and does not overlap with the first inter-layer connecting conductor when viewed in the laminating direction;
• wherein
• the first ground conductor does not overlap with at least a portion of the first connecting electrode when viewed in the laminating direction.