Ignition unit and motorized product

An ignition unit adapted to produce an ignition in a combustion chamber of a combustion engine, the ignition unit comprising:

• an electrode that has a tip section adapted to be exposed to the combustion chamber when the ignition unit is fitted on the combustion engine, the electrode forming part of a microwave resonating structure adapted to radiate a microwave field into the combustion chamber when a microwave excitation signal is applied to the electrode;
• a winding electrically coupled to the electrode whereby the winding and the electrode form part of a radiofrequency resonator adapted to radiate a radiofrequency field into the combustion chamber when a radiofrequency excitation signal is applied to the winding, the radiofrequency resonator having a primary resonance frequency comprised in a range between 1 MHz and 10 MHz;
• and
• a microwave signal path adapted to transfer the microwave excitation signal from a signal input connector on the ignition unit to the electrode, the microwave signal path comprising an inductive portion and a capacitive coupling structure adapted to provide a capacitive coupling from the inductive portion to the electrode.