The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 25, 2016
Filed:
Nov. 19, 2010
Arnold Sheynman, Rolling Meadows, IL (US);
James Paul Warden, Fort Worth, TX (US);
Shirook M. Ali, Milton, CA;
Arnold Sheynman, Rolling Meadows, IL (US);
James Paul Warden, Fort Worth, TX (US);
Shirook M. Ali, Milton, CA;
BlackBerry Limited, Waterloo, Ontario, CA;
Abstract
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 realtime, 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.