DYNAMIC REAL-TIME CALIBRATION FOR ANTENNA MATCHING IN A RADIO FREQUENCY RECEIVER SYSTEM
摘要
This disclosure relates to real-time calibration of a tunable matching network that matches the dynamic impedance of an antenna in a radio frequency receiver system. The radio frequency receiver system includes two non-linear equations that may be solved to determine the reflection coefficient of the antenna. Control system that calculates, in real¬ time, a value of an input impedance of the antenna to match a load in a receiver system, wherein said impedance is calculated directly using a closed-form solution. The reflection coefficient of the antenna may be used to determine the input impedance of the antenna. The elements of the matching circuit are then adjusted to match the input impedance of the antenna.
申请公布号
WO2012067622(A1)
申请公布日期
2012.05.24
申请号
WO2010US57355
申请日期
2010.11.19
申请人
RESEARCH IN MOTION LIMITED;SHEYNMAN, ARNOLD;WARDEN, JAMES;ALI, SHIROOK, M.