Patent ID: 8866689
Filing Date: 2014-10-21
Classification: H01Q

Abstract:
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: