Electronic device, antenna thereof, and method of forming...

Details Electronic device, antenna thereof, and method of forming... Electronic device, antenna thereof, and method of forming...

2009-03-17

2011-12-20

Owens, Douglas W (Department: 2821)

Communications: radio wave antennas

Antennas

With variable reactance for tuning antenna

C343S702000, C343S749000, C343S829000, C343S846000, C343S850000

Reexamination Certificate

active

08081127

ABSTRACT:
The antenna of the invention includes a transceiver unit and a dielectric unit. The transceiver unit has a ground portion, a radial portion, a conductive portion and a feed portion. The ground portion and the radial portion are disposed apart in parallel, so as to form a space therebetween. The distance between the ground portion and the radial portion is defined as a transceiver unit height. The dielectric unit is disposed in the space. That is, the dielectric unit is disposed between the ground portion and the radial portion. The dielectric unit has a dielectric unit thickness less than the transceiver unit height. In one embodiment, the ratio of the dielectric unit thickness to the transceiver unit height is preferably between 0.4 and 0.7.

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patent: 2007/0188383 (2007-08-01), Onaka et al.
patent: 2010/0214181 (2010-08-01), Ryou et al.

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