| 摘要 |
PURPOSE:To decrease the occupied volume in a device by spreading a part near the inlet of a square waveguide toward the longer side, running a water pipe made of an insulator from said part toward the end of the waveguide and narrowing the width of the side wall of the waveguide at the water pipe along the water pipe toward the end obliquely so as to eliminate the need for bending the waveguide. CONSTITUTION:The width 1a of the square waveguide 1 is spread, the water pipe 3 made of an insulator is run from the part A toward the end of the waveguide, cooling water flows the pipe and the width of the waveguide at the waveguide side wall 1 of the water pipe 3 is narrowed gradually along the water pipe. Since unreasonable structure such that the tip of the water pipe is bent and the pipe is penetrated from the side wall is avoided, no damage is given to the water pipe and since the waveguide is not bent, the occupied volume is decreased. Thus, the titled waveguide is applied especially to large power application and the operating frequency band is made broad. |
