In an object of the present invention, an object is to provide a technique for achieving higher accuracy in current detection of a radio frequency current, in a current detection device.
The current detection device of the present invention includes two or more conductors through which a current shunted from a same conductor flows; conductors through which the shunted current flows have portions opposed to each other; currents flow in opposite directions in opposing portions of the conductors; and a magnetic field detecting element is provided between the opposing portions of the conductors.