| 摘要 |
PURPOSE:To make the whole shape small and light, to decrease the cost and to improve the performance by sandwiching the circulator and arranging in the same metallic case by the relation that a dielectric filter for receiving and a dielectric filter for transmitting are located at both edges. CONSTITUTION:A circulator 1 is arranged through the aperture part of an internal space 61 of a metallic case 6 and almost at the central part in the length l1 direction on the inner surface of a bottom plate 62, at both sides, a dielectric filter 2 for receiving and a dielectric filter 3 for transmitting, namely, cylindrical dielectric resonators 21-24 and 31-34 are lined up and arranged in the length l1 direction while the shaft direction is made coincident with the width w1 direction of the inner space 61. A terminal 1b of the circulator 1, an electrode 110 on a dielectric porcelain substrate 11, a terminal 1c and an electrode 120 on a dielectric porcelain substrate 12 are connected by lead wires 15 and 16, an electrode 115 on the dielectric porcelain substrate 11 and a terminal 2a are connected by a lead wire 17 and an electrode 125 on the dielectric porcelain substrate 12 and a terminal 3a are connected by a lead wire 18. |
