Tuning device, system and method

A method, of tuning a component coupled to a device comprising a first node coupled to the component;

• a second node coupled to an inductor;
• a path including a capacitor coupling the first node and the second node;
• and a first switch coupled between the second node and a ground node, the method comprising:
• selectively operating the first switch for tuning the component.

A radio-frequency (RF) system comprising:

• an antenna;
• a plurality of inductors, each inductor of the plurality of inductors having a first end coupled to the antenna at an antenna node;
• a plurality of first switches, each first switch of the plurality of first switches having a first load terminal coupled to a second end of a corresponding inductor of the plurality of inductors;
• a plurality of second switches, each second switch of the plurality of second switches having a first load terminal coupled to the second end of the corresponding inductor of the plurality of inductors, and a second load terminal coupled to an RF ground node;
• and
• a capacitor coupled between the antenna node and a second node of each first switch of the plurality of first switches, wherein the capacitor is configured to reduce an effect of a parasitic off capacitance of each first switch at the antenna node.