| 摘要 |
PURPOSE:To further miniaturize a resonator used as a channel filter, and also, to miniaturize a whole shared transmission device containing a synthesis part, and to attain a low loss and a low cost by providing a TM mode dielectric resonator, etc. CONSTITUTION:A channel filter unit 100 is constituted of a metallic case 1 and eight TM mode dielectric resonators F1-F8 housed inside, and on the upper face of the resonators F1-F8, a signal input connector inserting hole Hi and a signal output connector inserting hole Ho are provided. Also, in the periphery of an opening part of the case 1, screw holes 2-13 for attaching a junction unit 101 are provided. Also, on the upper face of a ceramic substrate 16 of the unit 101, signal input connectors IN1-IN8 and a signal output connector OUT are provided, and on the upper face of the ceramic substrate 15, an electrode (branching line) 45 consisting of a transmission line is provided. In such a manner, by coupling and unifying the unit 100 and the unit 101, the whole equipment can be miniaturized, and its low loss and low cost can be attained. |
