| 摘要 |
PROBLEM TO BE SOLVED: To provide a dielectric filter which is small and has a steep characteristic curve with attenuation poles on both sides of the pass-band. SOLUTION: The dielectric filter F is provided with a dielectric substrate 3 comprising at least two dielectric plates 1 and 2, which are laminated and integrated. On the lamination boundary of the dielectric plate 1 and 2, an inner ground electrode 4 is provided, which has L-shaped coupling window 7 formed along the two side surfaces next each other. On a pair of main surfaces and side surfaces, a ground conductor 16 is formed so that a L-shaped, exposed dielectric 11 and 15 are formed, inside which input-output electrodes 12 and 14 are formed respectively. |
