Reconfigurable radio frequency (RF) bandstop/intermediate frequency (IF) bandpass filter

A method of filtering a wireless communication signal, comprising:

• receiving a radio frequency (RF) signal in a receive path of a receive module, the receive path comprising one or more components for processing the RF signal;
• converting the RF signal to an intermediate frequency (IF) signal;
• feeding back the IF signal to a first low-pass filter in negative feedback to generate a negative feedback low-pass filtered output;
• generating a feedback current based on the negative feedback low-pass filtered output;
• and
• selectively routing the feedback current to a first component of the receive path to produce a bandpass response in an output voltage when a switch in the feedback is closed and a low-pass response in the output voltage when the switch is open.

A circuit for filtering a wireless communication signal, comprising:

• means for receiving a radio frequency (RF) signal in a receive path of a receive module, the receive path comprising one or more components for processing the RF signal;
• means for converting the RF signal to an intermediate frequency (IF) signal;
• means for feeding back the IF signal to a first low-pass filter in negative feedback to generate a negative feedback low-pass filtered output;
• means for generating a feedback current based on the negative feedback low-pass filtered output;
• and
• means for selectively routing the feedback current to a first component of the receive path to produce a bandpass response in an output voltage when a switch in the feedback is closed and a low-pass response in the output voltage when the switch is open.