| 摘要 |
PURPOSE:To obtain a compact and lightweight dielectric filter by connecting an input/output coupled part to a conductor film formed on the side surface of a dielectric substance and separating said conductor film from the conductor film on side surface of the dielectric substance. CONSTITUTION:Two resonance holes 2 are formed in parallel to each other to a dielectric block 6, and the inner surfaces of these holes 2 are metallized with a conductor film. Then lead wires 7 and 8 of an input/output coupled part are connected with solder to a part of a conductor film 9 formed on the side surface of the block 6 which is rectilinearly distant away from the holes 2 with a prescribed distance. The film 9 is deleted by a prescribed amount along the periphery of wires 7 and 8 to form a separating groove 10. The film 9 is formed on both side surfaces and the bottom surface of the block 6, and this film 9 has conduction with the conductor film formed on the inner surfaces of the holes 2. |
