Reconfigurable wideband current-mode filters

A method, comprising

• amplifying a radio frequency (RF) signal by a low noise amplifier (LNA) to generate an amplified RF signal;
• down-converting the amplified RF signal by a first mixer to generate a first low-frequency signal;
• amplifying and filtering the first low-frequency signal by a first trans-impedance filter to generate a first baseband signal, wherein the trans-impedance filter comprises
• a tunable inductor and capacitor (LC) network configured to be a portion of a doubly terminated LC ladder filter;
• and
• a trans-impedance amplifier (TIA) coupled to the tunable inductor and capacitor (LC) network;
• down-converting the amplified RF signal by a second mixer to generate a second low-frequency signal;
• and
• amplifying and filtering the second low-frequency signal by a second trans-impedance filter to generate a second baseband signal.

A circuit, comprising

• means for amplifying a radio frequency (RF) signal and generating an amplified RF signal;
• means for down-converting the amplified RF signal and generating a first low-frequency signal;
• means for amplifying and filtering the first low-frequency signal and generating a first baseband signal, wherein the means for amplifying and filtering the first low-frequency signal and generating a first baseband signal comprises
• a tunable inductor and capacitor (LC) network configured to be a portion of a doubly terminated LC ladder filter;
• and
• a trans-impedance amplifier (TIA) coupled to the tunable inductor and capacitor (LC) network;
• means for down-converting the amplified RF signal and generating a second low-frequency signal;
• and
• means for amplifying and filtering the second low-frequency signal and generating a second baseband signal.