Multi-band antenna and methods for long term evolution wireless system
First Claim
1. An antenna apparatus operable in a first frequency band and a second frequency band, the apparatus comprising:
- a dielectric element comprising a first side and a second opposing side, a top antenna assembly disposed on the first side and a bottom antenna assembly disposed on the second opposing side, a feed point disposed on the first side, and a ground point disposed on the second opposing side;
a first pair of lower frequency band structures of the top antenna assembly operable in the first frequency band and disposed substantially on the first side, the first pair of lower frequency band structures galvanically coupled to the feed point;
a second pair of lower frequency structures of the bottom antenna assembly operable in the first frequency band and disposed substantially on the second opposing side, the second pair of lower frequency band structures galvanically coupled to the ground point;
a third pair of higher frequency band structures of the top antenna assembly operable in the second frequency band and disposed substantially on the first side, the third pair of higher frequency band structures electromagnetically coupled to the feed point; and
a fourth pair of higher frequency band structures of the bottom antenna assembly operable in the second frequency band and disposed substantially on the second opposing side, the fourth pair of higher frequency band structures electromagnetically coupled to the ground point;
wherein;
the first pair of lower frequency band structures are positioned directly above the fourth pair of higher frequency band structures of the bottom antenna assembly and opposite the second pair of lower frequency band structures of the bottom antenna assembly disposed on second opposing side; and
the second pair of lower frequency band structures are positioned directly below the third pair of higher frequency band structures and opposite the first pair of lower frequency band structures of the top antenna assembly disposed on the first side.
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0 Petitions
Accused Products
Abstract
A multiband dipole antenna solution suitable for use in various wireless device applications, and methods of tuning and utilizing the same. In one embodiment, the antenna is adapted for use in long term evolution (LTE or LTE-A) radio devices. In one implementation, the antenna comprises (i) two planar directly fed radiating elements operating in a lower frequency band and disposed on two opposing sides of a dielectric structure, and (ii) two electromagnetically coupled radiating elements operating in an upper frequency band also disposed on the opposing sides of the dielectric structure. An additional pair of electromagnetically coupled radiator elements is utilized to achieve wider antenna operating bandwidth.
467 Citations
28 Claims
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1. An antenna apparatus operable in a first frequency band and a second frequency band, the apparatus comprising:
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a dielectric element comprising a first side and a second opposing side, a top antenna assembly disposed on the first side and a bottom antenna assembly disposed on the second opposing side, a feed point disposed on the first side, and a ground point disposed on the second opposing side; a first pair of lower frequency band structures of the top antenna assembly operable in the first frequency band and disposed substantially on the first side, the first pair of lower frequency band structures galvanically coupled to the feed point; a second pair of lower frequency structures of the bottom antenna assembly operable in the first frequency band and disposed substantially on the second opposing side, the second pair of lower frequency band structures galvanically coupled to the ground point; a third pair of higher frequency band structures of the top antenna assembly operable in the second frequency band and disposed substantially on the first side, the third pair of higher frequency band structures electromagnetically coupled to the feed point; and a fourth pair of higher frequency band structures of the bottom antenna assembly operable in the second frequency band and disposed substantially on the second opposing side, the fourth pair of higher frequency band structures electromagnetically coupled to the ground point; wherein; the first pair of lower frequency band structures are positioned directly above the fourth pair of higher frequency band structures of the bottom antenna assembly and opposite the second pair of lower frequency band structures of the bottom antenna assembly disposed on second opposing side; and the second pair of lower frequency band structures are positioned directly below the third pair of higher frequency band structures and opposite the first pair of lower frequency band structures of the top antenna assembly disposed on the first side. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A multiband antenna component for use with a radio communications device, the antenna operable in a first frequency band and a second frequency band, the antenna component comprising:
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a dielectric element comprising a top antenna assembly disposed on a first side of the dielectric element, and a bottom antenna assembly disposed on an opposing second side of the dielectric element, said dielectric element having a first and a second end; a first lower frequency band structure of the top antenna assembly operable in the first frequency band and disposed substantially on the first end of the first side, the first lower frequency band structure electrically coupled to the feed point; a second lower frequency band structure of the bottom antenna assembly operable in the first frequency band and disposed substantially on the second end of the opposing second side, the second lower frequency band structure electrically coupled to the ground point; a third higher frequency band structure of the top antenna assembly operable in the second frequency band and disposed substantially on the first side, the third higher frequency band structure electromagnetically coupled to the feed point; and a fourth higher frequency band structure of the bottom antenna assembly operable in the second frequency band and disposed substantially on the opposing second side, the fourth higher frequency band structure electromagnetically coupled to the ground point; wherein; the first lower frequency band structure of the top antenna assembly is positioned directly above the fourth higher frequency band structure and opposite the second lower frequency band structure of the bottom antenna assembly; and the second lower frequency band structure of the bottom antenna assembly is positioned directly below the third higher frequency band structure and opposite the first lower frequency band structure of the top antenna assembly. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28)
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24. A method of enabling radio communications device operation using a multiband dipole antenna, the method comprising:
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providing a feed signal to a feed disposed on a first side of a dielectric substrate, and to a coupling disposed on an opposing second side of the dielectric substrate, the dielectric substrate having first and second ends; exciting a first pair of lower frequency band antenna structures disposed substantially on the first end of the first side of the dielectric substrate and electrically coupled to the feed so as to radiate in a first frequency band; exciting a second pair of lower frequency band antenna structures disposed substantially on the second end on the opposing second side of the dielectric substrate and electrically coupled to a ground so as to radiate in the first frequency band; causing a third pair of higher frequency band antenna structures disposed substantially on the first side and disposed directly above the second pair of lower frequency band structures to radiate in a second frequency band different than the first band by effecting electromagnetic coupling between the third pair of higher frequency band antenna structures and the feed; causing a fourth pair of higher frequency band antenna structures disposed substantially on the second side and disposed directly below the first pair of lower frequency band structures to radiate in a second frequency band different than the first band by effecting electromagnetic coupling between the fourth pair of higher frequency band antenna structures and the ground; causing a fifth pair of lower frequency band antenna structures disposed substantially on the second end of the first side of the dielectric substrate and above the second pair of lower frequency band structures to radiate in a first frequency band by effecting parasitic coupling between the fifth pair of lower frequency band antenna structures and the first pair of lower frequency band antenna structures; and causing a sixth pair of lower frequency band antenna structures disposed substantially on the first end of the opposing second side of the dielectric substrate and below the first pair of lower frequency band structures to radiate in a first frequency band by effecting parasitic coupling between the sixth pair of lower frequency band antenna structures and second pair of lower frequency band antenna structures.
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Specification