Low frequency antenna
View Patent ↗An antenna includes a core formed of a high-permeability material and a coil wire wrapped around at least a part of the core. In one embodiment, the high-permeability material includes ferrite material.
1. An antenna, comprising:
a core formed of a high-permeability material,
a coil wire wrapped around at least a part of the core; and,
an electronic element connected to an end of the coil wire,
wherein said electronic element is one of: an inductive element, or an active element, and
wherein said electronic element facilitates additional length for the antenna.
2. The antenna of claim 1 , wherein the high-permeability material includes ferrite material.
3. The antenna of claim 1 , wherein the core has a cylindrical configuration.
4. The antenna of claim 3 , wherein the coil wire is wrapped around a perimeter of the cylindrical configuration.
5. The antenna of claim 3 , wherein the cylindrical configuration includes a hollow center.
6. The antenna of claim 3 , wherein the cylindrical configuration includes a center formed of a composite material.
7. The antenna of claim 6 , wherein the composite material supports a conductive central axis passing through the center of the cylindrical configuration.
8. The antenna of claim 3 , wherein the coil wire is wrapped around a perimeter of the cylindrical configuration in a longitudinal direction of the cylindrical configuration.
9. The antenna of claim 8 , wherein the coil wire is wrapped around only a portion of the perimeter of the cylindrical configuration and providing a vacant region of the core with no coil wire wrapped thereupon.
10. The antenna of claim 3 , wherein the cylindrical configuration has a semi-circular cross section.
11. The antenna of claim 1 , wherein the core has a non-cylindrical configuration.
12. The antenna of claim 11 , wherein the non-cylindrical configuration has a concave section.
13. The antenna of claim 12 , wherein the concave sections surrounds at least a portion of a printed circuit board.
14. The antenna of claim 1 , wherein the core is positioned relative to a printed circuit board.
15. The antenna of claim 14 , a path of the coil wire is elongated through the printed circuit board.
16. The antenna of claim 1 , wherein the core is positioned within a volume of material.
17. The antenna of claim 16 , wherein at least one antenna element is formed on the volume of material.
18. The antenna of claim 17 , wherein the antenna element is an isolated magnetic dipole antenna element.
19. A communication device, comprising:
a printed circuit board; and
an antenna, the antenna comprising:
a core formed of a high-permeability material,
a coil wire wrapped around at least a part of the core; and,
an electronic element connected to an end of the coil wire,
wherein said electronic element is one of: an inductive element or an active element, and
wherein said electronic element facilitates additional length for the antenna.
20. The communication device of claim 19 , wherein the high-permeability material includes ferrite material.
21. An antenna, comprising:
a first antenna element, and a second antenna element;
said first antenna element comprising a core formed of a high-permeability material, and a coil wire wrapped around at least a part of the core,
said first antenna element positioned within a volume of material,
said second antenna element comprising an Isolated Magnetic Dipole element and positioned on the volume of material,
wherein said first antenna element is a low frequency antenna element and is coupled to said second antenna element for providing at least one of:
additional bandwidth or multifrequency operation.
22. The antenna of claim 21 , wherein the volume of material is a dielectric material.