Patent ID: 9559415
Date: 2017-01-31
CPC Classifications: H01Q,H04B

Claim:
1. A method for realizing Specific Absorption Rate (SAR) control, comprising: providing phase shifters on the metal ground edge of a wireless terminal; and altering an induced current of the metal ground edge by applying the phase shifters, such that an antenna near field radiation characteristic of an SAR can be reduced, wherein the altering an induced current of the metal ground edge is: altering an induced current distribution on a PCB of the wireless terminal by altering magnitudes of phase shift and locations of the phase shifters on the metal ground, wherein the phase shifters are provided on specific locations determined by the induced current distribution on the PCB, in surface induced current accumulation areas to introduce additional phase shift to a surface current for phase cancellation among current elements or for random perturbation to the surface current to maximize uniformity in distribution of near-field radiation.