Abstract text

A receiving device in which the shielding performance is improved to solve a pulling problem in a receiving device of a direct conversion system is provided.

The receiving device includes: a substrate on which an amplifier 30 that amplifies high frequency input signals, a filter 34 that passes only intended signals and removes unintended signals by tuning the amplified high frequency input signals and a direct conversion unit 36 that converts and detects directly the high frequency input signal from the filter; a first high-frequency shielding portion 90 fixed to a substrate 20 and which stands at the boundary between the filter and the other units for preventing radiation of the high frequency electromagnetic wave that is induced from the filter to the space; and a second high-frequency shielding portion 60 provided facing and close to the filter surrounded by the first high-frequency shielding portion 90 and which prevents radiation of high frequency electromagnetic waves induced from the filter to the space, together with the first high-frequency shielding portion 90.