Patent ID: 6882251
Filing Date: 2005-04-19
Classification: H01P

Abstract:
1. A method for creating an adaptively predistorted filter, the method comprising: a) designing a transfer function according to performance criteria specified for at least one property of the adaptively predistorted filter; b) calculating the poles of the transfer function; c) performing at least one iteration of adaptively predistorting the poles of the transfer function by shifting the poles, wherein at least one of the poles is shifted by a unique amount, relative to the shifting of the remaining poles, to obtain adaptively predistorted poles for creating an adaptively predistorted transfer function for achieving the performance criteria, and where each amount of shifting is a percentage of a dissipation factor that is related to the Q factor and fractional bandwidth of the filter; and, d) realizing the adaptively predistorted filter accordingly to the adaptively predistorted transfer function.