| 摘要 |
A plasma generation device (30) for generating electromagnetic wave plasma by emitting electromagnetic waves in a combustion chamber (10) in an engine (20), wherein reflection of the electromagnetic waves in a load is suppressed. The plasma generation device (30) comprises an electromagnetic wave generator (33) for generating electromagnetic waves, and an antenna (15a) for emitting the electromagnetic waves generated by the electromagnetic wave generator (33) to the combustion chamber (10) in the engine (20), and generates electromagnetic wave plasma in the combustion chamber by means of the electromagnetic waves emitted from the antenna (15a). The device is further provided with a stub (51) and stub controllers (52, 53). The stub (51) is provided on the electromagnetic wave transmission line (60) connecting the electromagnetic wave generator (33) and the antenna (15a). When the engine (20) is operating, the stub controllers (52, 53) adjust the short position of the stub (51) on the basis of the intensity of the reflected waves of the electromagnetic waves from the antenna (15a). |
