Real-time matching of target reactance in non-foster matching network

A system comprising:

• a tunable non-Foster matching network comprising:
• an amplification stage comprising an amplifier;
• and
• a reference reactance coupled in parallel with the amplifier, the reference reactance coupled to an input and an output of the amplifier;
• wherein the non-Foster matching network is configured to provide a negative reactance based on the reference reactance;
• and
• wherein the amplification stage further comprises at least one adjustable circuit element configured to adjust a gain of the amplification stage and thereby adjust the negative reactance;
• and
• a controller configured to obtain one or more reactance measurements and to control the at least one adjustable circuit element based on the one or more reactance measurements.

A method comprising:

• obtaining one or more reactance measurements;
• and
• controlling a non-Foster matching network to adjust a negative reactance provided by the non-Foster matching network based on the one or more reactance measurements;
• wherein the non-Foster matching network comprises:
• an amplification stage comprising an amplifier;
• and
• a reference reactance coupled in parallel with the amplifier, the negative reactance based on the reference reactance;
• and
• wherein controlling the non-Foster matching network comprises controlling at least one adjustable circuit element in the amplification stage to adjust a gain of the amplification stage and thereby adjust the negative reactance.