Patent ID: 8093990

Claim:
A far field radio frequency identification (RFID) reader comprises: a baseband processing module coupled to: convert outbound data into outbound modulation information; and convert an inbound baseband signal into inbound data; a transmitter section that includes: an oscillation module coupled to generate a radio frequency (RF) oscillation; and a power amplifier module coupled to amplify and to modulate the RF oscillation based on the modulation information to produce an outbound RF signal; and a receiver section that includes: a low noise amplifier module coupled to amplify an inbound RF signal to produce an amplified inbound RF signal; a down conversion module coupled to convert the amplified inbound RF signal into the inbound baseband signal; and a current mode blocking circuit coupled to substantially compensate for a blocking current component of the baseband inbound signal and to pass, substantially unattenuated, a desired signal current component of the baseband inbound signal.