Antenna device, reception device and radio wave timepiece

An antenna device comprising:

• a plurality of antenna units each of which has an oscillating body capable of oscillating at a predetermined natural frequency and being displaceable by an external magnetic field, and a converter for converting motion of the oscillating body to an electrical signal, when a radio wave signal having a frequency band for inducing resonance of the oscillating body comes, the oscillating body resonating with a magnetic field component of the radio wave signal, the converter converting resonance of the oscillating body to the electrical signal, and an electrical signal corresponding to the radio wave signal being outputted, and each of the antenna units being configured so that degree of displacement of the oscillating body by the external magnetic field is different with respect to each of the antenna units;
• and
• a mixer for mixing outputs of the plurality of antenna units and outputting a mixed signal.

An antenna device comprising:

• a plurality of antenna units each of which has an oscillating body capable of oscillating at a predetermined natural frequency and being displaceable by an external magnetic field, and a converter for converting motion of the oscillating body to an electrical signal, when a radio wave signal having a frequency band for inducing resonance of the oscillating body comes, the oscillating body resonating with a magnetic field component of the radio wave signal, the converter converting resonance of the oscillating body to the electrical signal, and an electrical signal corresponding to the radio wave signal being outputted, and each of the antenna units being configured so that degree of displacement of the oscillating body by the external magnetic field is different with respect to each of the antenna units;
• and
• a switch section for selectively sending an electrical signal from one of the plurality of antenna units to a subsequent stage.