Abstract: Disclosed herein is a coil component that includes: a first core having a mounting surface and a coil placing surface positioned opposite to the mounting surface; a lower coil placed on the coil placing surface such that a coil axis of the lower coil extends substantially perpendicular to the coil placing surface; an upper coil substantially coaxially stacked on the lower coil; and a second core disposed through inner diameter areas of the lower and upper coils. The number of turns of one of the lower and upper coils is larger by less than one turn than other one of the lower and upper coils. The diameter of the second core is larger at a first section surrounded by the other one of the lower and upper coils than at a second section surrounded by the one of the lower and upper coils.

Abstract: Disclosed herein is a coil component that includes: a first core having a mounting surface and a coil placing surface positioned opposite to the mounting surface; a lower coil placed on the coil placing surface such that a coil axis of the lower coil extends substantially perpendicular to the coil placing surface, the lower coil having one end drawn to a first area of the mounting surface and other end drawn to a second area of the mounting surface; and an upper coil substantially coaxially stacked on the lower coil, the upper coil having one end drawn to a third area of the mounting surface and other end drawn to a fourth area of the mounting surface. The lower coil is greater in a coil diameter than the upper coil.

Abstract: Disclosed herein is a coil component that includes: a first core having a mounting surface and a coil placing surface positioned opposite to the mounting surface; a lower coil placed on the coil placing surface such that a coil axis of the lower coil extends substantially perpendicular to the coil placing surface; an upper coil substantially coaxially stacked on the lower coil; and a second core disposed through inner diameter areas of the lower and upper coils. The number of turns of one of the lower and upper coils is larger by less than one turn than other one of the lower and upper coils. The diameter of the second core is larger at a first section surrounded by the other one of the lower and upper coils than at a second section surrounded by the one of the lower and upper coils.

Abstract: Disclosed herein is a coil component that includes: a first core having a mounting surface and a coil placing surface positioned opposite to the mounting surface; a lower coil placed on the coil placing surface such that a coil axis of the lower coil extends substantially perpendicular to the coil placing surface, the lower coil having one end drawn to a first area of the mounting surface and other end drawn to a second area of the mounting surface; and an upper coil substantially coaxially stacked on the lower coil, the upper coil having one end drawn to a third area of the mounting surface and other end drawn to a fourth area of the mounting surface. The lower coil is greater in a coil diameter than the upper coil.

Abstract: An antenna element 1 is installed at a glass part 5 of a vehicle 4. The antennal element 1 has a ground part 3 and a radiating element 2. A metallic part side ground part 3b of the ground part 3 is overlapped with a metallic part 6 of the vehicle 4, while a glass part side ground part 3a of the ground part 3 and the radiating element 2 are not overlapped with the metallic part 6. The ground part 3 is installed such that a ratio of the area of the glass part side ground part 3a to be overlapped with the glass part 5 to the area of the metallic part side ground part 3b to be overlapped with the metallic part 6 is from 1:5 to 1:10.

Abstract: An antenna element 1 is installed at a glass part 5 of a vehicle 4. The antennal element 1 has a ground part 3 and a radiating element 2. A metallic part side ground part 3b of the ground part 3 is overlapped with a metallic part 6 of the vehicle 4, while a glass part side ground part 3a of the ground part 3 and the radiating element 2 are not overlapped with the metallic part 6. The ground part 3 is installed such that a ratio of the area of the glass part side ground part 3a to be overlapped with the glass part 5 to the area of the metallic part side ground part 3b to be overlapped with the metallic part 6 is from 1:5 to 1:10.