Impedance converter to achieve negative capacitance and/or negative inductance for radio frequency front end matching

A method of generating a negative impedance with a negative impedance converter circuit, comprising:

• receiving a first signal of a differential radio frequency signal at a source of a first transistor of a cross-coupled pair of transistors and a second signal of the differential radio frequency signal at a source of a second transistor of the cross-coupled pair of transistors, the first signal and the second signal received from an output of an antenna;
• and
• generating a negative capacitance or negative inductance across a first and a second input of a low noise amplifier, the generating based at least in part on a load impedance coupled to a drain of the first transistor and a drain of the second transistor.

A negative impedance converter circuit comprising:

• means for generating an opposition to a current when a voltage is applied;
• and
• means for generating a negative capacitance or negative inductance based at least in part on the opposition generating means coupled to a drain of a first transistor of a cross-coupled pair of transistors and a drain of a second transistor of the cross-coupled pair of transistors, the negative capacitance or negative inductance generating means coupled to a first and a second output of an antenna and to a first and a second input of a low noise amplifier (LNA).