| 摘要 |
PURPOSE:To obtain a thin resonator by constituting the resonator by bringing two straight rectangular waveguides into contact at wider wall surfaces, respectively and by connecting E corners. CONSTITUTION:Waves of frequencies f1, f2 and f3 are inputted to terminal I of main waveguide 1 and one circumferential length of resonator 9 is set to a multiple of the wavelength in the waveguide of frequency f2, so that resonator 9 resonates to generate the wave of frequency f2 coupled by coupling hole 4. Waves of other frequencies f1 and f3 are led out to terminal II by passing without being influenced by resonator 9. The wave of frequency f2 is further passed through coupling hole 5 and led out to terminal IV of the subordinate waveguide. |
