Tunable RF N-path filter

A method comprising:

• receiving, at a bandpass filter, a differential signal, wherein the bandpass filter comprises a resistive-capacitive configuration of N-path filters tunable to a first center frequency based on at least a first clock frequency;
• receiving, at a notch filter, the differential signal, wherein the notch filter comprises a capacitive-resistive configuration of N-path filters tunable to a second center frequency based on at least a second clock frequency;
• combining, by a combiner coupled to the bandpass filter and the notch filter, a bandpass output signal provided by the bandpass filter and a notch output signal provided by the notch filter, wherein the combiner outputs a combined output;
• and
• splitting, by a balun, a radio frequency signal to generate the differential signal.

An apparatus comprising:

• means for receiving, at a bandpass filter, a differential signal, wherein the bandpass filter comprises a resistive-capacitive configuration of N-path filters tunable to a first center frequency based on at least a first clock frequency;
• means for receiving, at a notch filter, the differential signal, wherein the notch filter comprises a capacitive-resistive configuration of N-path filters tunable to a second center frequency based on at least a second clock frequency;
• means for combining, by a combiner coupled to the bandpass filter and the notch filter, a bandpass output signal provided by the bandpass filter and a notch output signal provided by the notch filter, wherein the combiner outputs a combined output;
• and
• means for splitting a radio frequency signal to generate the differential signal.

A non-transitory computer-readable storage medium including computer program code, which when executed by at least one processor circuitry causes operations comprising:

• receiving a radio frequency signal;
• filtering, by an N-path bandpass filter tunable to a first center frequency having a pass band, a received radio frequency signal into a first output signal;
• suppressing, by an N-path notch filter tunable to a second center frequency, the received radio frequency signal into a second output signal;
• combining, by a combiner coupled to the N-path bandpass filter and the N-path notch filter, the first output signal provided by the N-path bandpass filter and the second output signal provided by the N-path notch filter;
• and
• splitting, by a balun, a radio frequency signal to generate the differential signal.