Inductive heating device for heating an aerosol-forming substrate

Inductive heating device for heating an aerosol-forming substrate comprising a susceptor, the inductive heating device comprising:

• a device housing,
• a DC power source having a DC supply voltage,
• a power supply electronics configured to operate at high frequency in the range of 1 MHz to 30 MHz, the power supply electronics comprising a DC/AC inverter connected to the DC power source, the DC/AC inverter including a power amplifier including a transistor switch, a transistor switch driver circuit, and an LC load network configured to operate at low ohmic load, wherein the LC load network comprises a shunt capacitor and a series connection of a capacitor and an inductor having an ohmic resistance, and
• a cavity arranged in the device housing, the cavity having an internal surface shaped to be capable of accommodating at least a portion of the aerosol-forming substrate, the cavity and the inductor of the LC load network being arranged relative to one another such that upon accommodation of the portion of the aerosol-forming substrate in the cavity the inductor of the LC load network is inductively coupled to the susceptor of the aerosol-forming substrate during operation.