Patent ID: 8447257
Filing Date: 2013-05-21
Classification: H03F,H04B

Abstract:
1. A stage for a receiver of a wireless device, wherein the stage comprises: a matching network configured to receive amplified signals of interest and amplified unwanted signals from an amplifier and to separate the amplified signals of interest from the amplified unwanted signals in conjunction with additional downstream filters; a signal path connected to the matching network, the signal path comprising components for receiving and processing the amplified signals of interest; and, a shunt path connected to the matching network for receiving the amplified unwanted signals, the shunt path comprising a load having an impedance configured to limit the output swing of the amplifier in a frequency band corresponding to the amplified unwanted signals by reflecting at least a portion of the amplified unwanted signals back to the amplifier with an appropriate phase for at least partially canceling the amplified unwanted signals at the output of the amplifier.