Antenna and radio-wave receiving device provided with antenna

1. An antenna constituted by a columnar magnetic core and a coil portion winding a conductor around the magnetic core, comprising:

an extension portion in a flat-plate state extended from an end portion of the magnetic core; and

a standing portion provided at least on one-direction face of the extension portion,

wherein the standing portion and the extension portion are provided as different parts, and

the antenna is arranged inside a radio-wave receiving device for receiving a radio wave having information.

2. The antenna according to claim 1 , wherein a magnetism-collecting member is provided in contact with or magnetically coupled with the standing portion or formed as an integral body with the standing portion.

3. The antenna according to claim 2 , wherein the magnetism-collecting member is a flat-plate shape having a flat face opposed to the extension portion, and an area of the flat face of the magnetism-collecting member is larger than a sectional area of a joint portion between the standing portion and the magnetism-collecting member.

4. The antenna according to claim 2 , wherein the magnetism-collecting member is disposed at least in one direction of a direction approaching from the standing portion to the magnetic core or a direction separating from the magnetic core.

5. The antenna according to claim 2 , wherein a material constituting the magnetism-collecting member is different from a material constituting the standing portion.

6. The antenna according to claim 2 , wherein the material constituting the standing portion is an insulating material, and the material constituting the magnetism-collecting member is an amorphous laminate material.

7. The antenna according to claim 2 , wherein the standing portion or the magnetism-collecting member faces a side of entering a magnetic flux of the radio wave, or is provided at a side of a member that does not shield the magnetic flux of the radio wave of the radio-wave receiving device.

8. The antenna according to claim 7 , wherein the radio-wave receiving device has either of or both of a windshield glass and a time display measure, and

the standing portion or the magnetism-collecting member faces a side of the windshield glass or the time display measure.

9. The antenna according to claim 7 , wherein a lateral end face of the standing portion or the magnetism-collecting member is planarly aligned with an upper opening end face, or is positioned from the upper opening end face to the center of the radio-wave receiving device.

10. The antenna according the claim 7 , wherein the standing portion or the magnetism-collection faces a joint portion or an interdigitate portion of the radio-wave receiving device.

11. The antenna according to claim 7 , wherein the member that does not shield the magnetic flux of the radio wave is back lid constituted by an insulating material, and the standing portion or the magnetism-collecting member is arranged at a side of the back lid.

12. The antenna according to claim 7 , wherein the standing portion or the magnetic-collecting member has a plane with a wide area in the direction from which the radio wave comes, or has a widened thickness.

13. A radio-wave receiving device having the antenna according to claim 1 within an exterior at least partially formed by a non-conductor,

wherein a circuit board required for an operation of the radio-wave receiving device is provided, and

the circuit board is provided between a plurality of extension portions extended from an end portion of the magnetic core and arranged as a not to overlap both of the extension portions extended from a different end portion of the magnetic core in the planar view.

14. The radio-wave receiving device according to claim 13 , wherein an anti-magnetic plate shielding magnetic field is provided and the anti-magnetic plate is arranged so as to overlap the extension portion in a planar view.

15. The radio-wave receiving device according to claim 13 , wherein the anti-magnetic plate shielding a magnetic field is provided and arranged so as not to overlap both of the extension portions extended from a different end portion of the magnetic core in the planar view.

16. The radio-wave receiving device according to claim 13 , having at least one member in the extension portion, standing portion, magnetism-collecting member and a second standing portion, and the magnetism-collecting member, wherein

the entire member is arranged overlapping a portion being a non-conductor of the exterior in the planar view.

17. The radio-wave receiving device according to claim 13 , having

the exterior of the radio-wave receiving device composed of a back lid and a watch case fitted with the back lid as well as a windshield glass; and being

a radio controlled timepiece provided with a dial plate or a time display measure.

18. The antenna according to claim 1 , wherein the standing portion is curved inward with respect to the magnetic core.