| 摘要 |
PROBLEM TO BE SOLVED: To obtain an electromagnetic coupling-type high-frequency package which is enhanced in characteristics to isolate an input line from an output line of high-frequency signals and less degraded in high frequency signal transmission characteristics. SOLUTION: A high-frequency package 1 is provided, wherein a first input line 6a, a second input line 8a, a first output line 6b, and a second output line 8b which are formed on the surface and the backside of a dielectric board 2 respectively are electromagnetically coupled through slot holes 9a and 9b having a long side of length L and provided to a grounding layer 7 located inside a dielectric board 2. The slot holes 9a and 9b are formed at positions keeping their centers separate from each other by a distance of 2L or above, and a viahole conductor 15 or a metal band is formed in regions that are each separate by at least L from the center positions z1 and z2 of the second input line 8a and the second output line 8b, respectively. |
