Patent ID: 8224275

Claim:
A multi-band radio frequency (RF) receiver comprising: a first RF signal path configured to receive a first RF signal; a second RF signal path configured to receive a second RF signal; a first low noise amplifier (LNA) coupled to the first RF signal path and configured to amplify the first RF signal; a second LNA coupled to the second RF signal path and configured to amplify the second RF signal; a first frequency translated notch filter coupled to the first RF signal path in parallel with the first LNA and configured to attenuate frequency components outside a first frequency band of the first RF signal, the first frequency translated notch filter comprising a first passive mixer configured to mix the first RF signal and a first local oscillator signal; and a second frequency translated notch filter coupled to the second RF signal path in parallel with the second LNA and configured attenuate frequency components outside a second frequency band of the second RF signal, the second frequency translated notch filter comprising a second passive mixer configured to mix the second RF signal and the second local oscillator signal, wherein the first and second frequency translated notch filters further comprise a shared baseband impedance coupled between an output of the first passive mixer and ground and an output of the second passive mixer and ground.