Patent ID: 7729674

Claim:
A multiband receiver with a shared bias circuit comprising: an antenna configured to receive and convert a wireless signal to a received signal; one or more antenna switches configured to route the received signal to only one of one or more filters, wherein the one or more antenna switches are responsive to an antenna switch control signal; one or more filters configured to process the received signal to create a filtered received signal wherein the one or more filters are configures such that only one of the one or more filters receives and processes a received signal at a time; two or more amplifiers, biased with an amplifier bias signal from a shared bias circuit, the two or more amplifiers configured to selectively amplify the filtered received signal to create an amplified signal; a shared bias circuit comprising: a bias circuit configured to generate an amplifier bias signal; a bias switch network configured to selectively provide the amplifier bias signal to only one of the two or more amplifiers, wherein the bias switch network is responsive to a bias switch control signal.