Abstract: The present invention provides a microwave oven, including a cooking cavity, a microwave source, a controller and a first isolator, wherein the controller is connected to the microwave source, for controlling the power of the microwave source; and the first isolator is provided with a first input port, a first output port and a first isolation port, the first input port being connected to the microwave source, the first output port being connected to the cooking cavity, and the first isolation port being connected with a load.

Abstract: A semiconductor microwave oven and a microwave feeding structure thereof are provided. The microwave feeding structure of the semiconductor microwave oven includes: a chamber body having a door; a semiconductor power source configured to generate a microwave; and a microwave feeding assembly connected between the semiconductor power source and the chamber body, and configured to feed the microwave generated by the semiconductor power source into the chamber body and to convert a first microwave mode output by the semiconductor power source into a second microwave mode adaptive to microwave heating.