Abstract: A motor includes a rotor rotatable about a central axis extending vertically, a stator radially opposed to the rotor, a circuit board located axially below the stator, a housing in which the rotor, the stator, and the circuit board are accommodated, and a resin portion located on an upper surface of a bottom plate of the housing and covering at least a portion of the stator and the circuit board. The bottom plate of the housing includes a processed portion that is in contact with at least a portion of the resin portion. A surface of the processed portion is rougher than a surface of the bottom plate excluding the processed portion.

Abstract: A magnetic shielded package includes a magnetic device, a first magnetic shield member, and a second magnetic shield member. The first magnetic shield member is disposed below the magnetic device. The second magnetic shield member is disposed on the first magnetic shield member so as to cover the magnetic device. An opening portion is formed in the first magnetic shield member (i) at such a position as not to be adjacent to an outer circumference of the first magnetic shield member or (ii) an upper wall of the second magnetic shield member.

Abstract: A power amplifier amplifies the power of a transmission signal and outputs the amplified signal to an antenna. A power detector detects the power of the amplified signal. A first comparator compares the detected power with a first reference signal. A power adjuster adjusts the power of the transmission signal to a desired power value on the basis of the comparison result of the first comparator. A second comparator compares the detected power with a second reference signal. A controller controls the supply of power to the power amplifier or the power adjuster on the basis of the comparison result of the second comparator.