HIGH-FREQUENCY RADIATION STRUCTURE, FLOW PASSAGE STRUCTURE, AND HIGH-FREQUENCY RADIATION DEVICE

摘要

[Problem] To enable integration and downsizing of a high-frequency waveguide and a flow passage for a body to be irradiated. [Solution] A high-frequency radiation structure (1) is equipped with: a waveguide (2); a hollow section (3) that is provided inside the waveguide, and accommodates a body to be irradiated; and at least one flow passage (4) for introducing the body to be irradiated from outside the waveguide to the hollow section (3), and discharging the body to be irradiated from the hollow section (3) to outside the waveguide. The waveguide (2) is formed from two ground conductor surfaces (2a) that face each other across a space in the height direction of the waveguide (2), and two ground conductor side parts (2b) that face each other across a space in the width direction of the waveguide (2), and electrically connect the ground conductor surfaces (2a). The ground conductor side parts (2b) are partially or completely constituted in the length direction of the waveguide (2) by a plurality of ground conductor posts (15) provided parallel in the length direction of the waveguide (2), and the remaining section of the waveguide (2) in the length direction is constituted by a ground conductor wall that extends in the length direction of the waveguide (2). The flow passage (4) is formed so as to pass through clearances between adjacent ground conductor posts (15) and be in communication with the hollow section (3).