| 摘要 |
<p>Conductive layers are formed on both sides of a dielectric substrate and electrically connected to each other through a line of via holes arranged at intervals 1/2 or less of the wavelength of the resonance frequency in the dielectric substrate, thereby constituting n dielectric resonators and a input/output waveguide structure. When n is 3, the first resonator is electromagnetic-field-coupled to the second resonator through the via hole of the first interval. The second resonator is electromagnetic-field-coupled to the third resonator through the via hole of the second interval. Hence a filter is constituted. The input/output waveguide structure is electromagnetic-field-coupled to the filter through the via hole of the fourth interval. The first resonator is electromagnetic-field-coupled to the third resonator through the via hole of the third interval.</p> |
