| 摘要 |
PROBLEM TO BE SOLVED: To provide a microwave device whose size is small and the mode converter whose reflection characteristic is wideband. SOLUTION: The mode converter which performs a mode-conversion between a waveguide mode and a coaxial mode comprises: a first cavity part 1a which consists of a cavity having an inlet 1d of an electromagnetic wave; a slot 1e which is provided on a wall surface of the first cavity part 1a in a direction of intersecting with a high frequency current flowing on the wall surface of the first cavity part 1a by an electromagnetic wave fed from the inlet 1d; a second cavity part 1b on which the slot 1e is continuously formed; a third cavity part 5 which communicates with the second cavity part 1b and whose cross sectional shape is the same as the inlet 1d; and a probe 2a projected in the third cavity part 5. A dielectric 4 is set at an inlet of the third cavity part 5. COPYRIGHT: (C)2007,JPO&INPIT
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