US 7,554,496 B2
Mobile wireless communications device including a ground patch providing specific absorption rate (SAR) reduction and related methods
Yihong Qi, St. Agatha (Canada); Ying Tong Man, Waterloo (Canada); and Perry Jarmuszewski, Waterloo (Canada)
Assigned to Research In Motion Limited, Waterloo, Ontario (Canada)
Filed on Apr. 10, 2007, as Appl. No. 11/733,360.
Prior Publication US 2008/0254836 A1, Oct. 16, 2008
Int. Cl. H01Q 1/24 (2006.01); H01Q 1/48 (2006.01)
U.S. Cl. 343—702  [343/846] 18 Claims
OG exemplary drawing
 
1. A mobile wireless communications device comprising:
a portable housing;
a dielectric substrate carried by said portable housing having a front side facing toward a user and a back side opposite the front side;
a ground plane carried by said dielectric substrate;
at least one circuit carried by said dielectric substrate;
an antenna carried by said dielectric substrate adjacent an end thereof and electrically connected to said at least one circuit; and
a ground patch adjacent the front side of said dielectric substrate being electrically connected to said ground plane and being spaced apart from and at least partially overlapping said antenna;
said round patch being carried b said dielectric substrate and having an L-shape comprising a first member extending outwardly from said dielectric substrate, and a second member extending outwardly from said first member in a direction generally parallel to said dielectric substrate.