Electromagnetic wave generating system and heating device with electromagnetic wave generating system

An electromagnetic wave generating system, comprising:

• an electromagnetic generating module, configured to generate an electromagnetic wave signal;
• a radiating assembly, comprising one or more radiating units and configured to be electrically connected with the electromagnetic generating module to generate electromagnetic waves of a corresponding frequency according to the electromagnetic wave signal;
• and
• a matching unit, connected in series between the electromagnetic generating module and the radiating assembly, and configured to adjust a load impedance of the electromagnetic generating module;
• the matching unit comprising:
• a first matching module, comprising a plurality of fixed value inductors connected in series between the electromagnetic generating module and the radiating assembly, and a plurality of branches, wherein
• each branch of the first matching module comprises a fixed value capacitor and a switch connected in series;
• and
• input ends of the plurality of branches of the first matching module are connected in series between every two adjacent inductors of the plurality of fixed value inductors and between an end inductor and the radiating assembly respectively, and output ends of the plurality of branches of the first matching module are all grounded, wherein the matching unit further comprises:
• a second matching module, the second matching module connected in series between the electromagnetic generating module and the first matching module;
• and
• the second matching module comprising a plurality of parallel branches.