Patent ID: 9306287
Filing Date: 2016-04-05
CPC Classification: H01Q

Claim Text:
1. An antenna structure having a serial connected capacitance effect comprising: an antenna being a metallic planar antenna used to receive and emit radio signals, and the antenna has at least a first metallic plane board not positioned on the metallic planar antenna; and a second metallic plane board close to said first metallic plane board, said second metallic plane board has a feed-in metallic plane board and a grounding metallic plane board mutually connected by a communicating element provided between them; a feed-in point is extended out of said feed-in metallic plane board, while a grounding point is extended out of said grounding metallic plane board; and a layer of carrier plate is sandwiched between said antenna and said second metallic plane board, the second metallic plane board is not grounded; signals are fed in from said feed-in point of said second metallic plane board to form a capacitance effect by means of said layer of carrier plate sandwiched between said antenna and said second metallic plane board, to coupling transmit radio frequency (RF) signals from said feed-in point of said second metallic plane board to said antenna; and said communicating element is adapted to open or close for purpose of adjusting frequency of said antenna structure.