A filter includes a body and first and second filters with pass bands different from each other. In the body, an inductor of the first filter is in a first range, and an inductor of the second filter is in a second range. The inductor in the first filter is a vertical coil including a plate electrode and a via extending in a normal direction of the body. In the second filter, the inductor facing the first range is a planar coil with a winding axis in the normal direction of the body. As seen in plan view in the normal direction of the body, an imaginary line from an extending-direction center of the plate electrode of the first filter in a direction perpendicular or substantially perpendicular to the extending direction does not intersect with the inductor of the second filter.

A device for switching a differential signal includes an input port, a first output port, a second output port, a first micro electromechanical system (MEMS) switch, and a second MEMS switch. The first and second MEMS switches selectively couple the input port to either the first output port or the second output port. The differential input port is separated into two single-ended paths. One single-ended path is switched through the first MEMS switch, and the other single-ended path is switched through the second MEMS switch. The single-ended paths are spatially matched with respect to length and orientation, and are at least partially distributed through at least two layers of electrical conductors, with adjacent layers of electrical conductors separated by electrically insulating layers.