Patent ID: 7433666
Filing Date: 2008-10-07
Classification: H03F,H04B

Abstract:
1. A pre-processing stage for a receiver of a wireless device, wherein the pre-processing stage comprises: a) an amplifier that receives signals of interest and unwanted signals and provides amplified signals of interest and amplified unwanted signals; b) a matching network connected to the amplifier, the matching network being configured for separating the amplified received signals of interest from the amplified unwanted signals in conjunction with additional downstream filters; c) a signal path connected to the matching network, the signal path including components for receiving and pre-processing the amplified signals of interest; and, d) a shunt path connected to the matching network, the shunt path including components for adjusting reflected energy sent back to the amplifier for limiting the output swing of the amplifier in a frequency band corresponding to the amplified unwanted signals.