To provide an inexpensive antenna multicoupler having an excellent band pass characteristic providing a low loss and high selectivity.
A layered body is configured by layering a plurality of dielectric sheets 401 to 408, three shield electrode layers 451 to 453, strip line resonator electrode layers 411 to 413 and 421 to 423 on two layers and baking them integrally. The single shield electrode layer 452 separates the layered body into two upper and lower layered parts, a reception filter is configured by the strip line resonator electrode layers 421 to 423 on one layer for the one layered body, and a transmission filter is formed from the other strip line resonator electrode layers 411 to 413 on one layer for the other layered part. The upper and lower layered parts are shielded by using the shield electrode layers 451, 453 and an integral structure is obtained by vertically stacking the reception filter and the transmission filter.
|JP04311101||DEVICE FOR SYNTHESIZING/DISTRIBUTING ELECTRIC POWER|
|JP11068614||TRANSMISSION RECEPTION CIRCUIT|
|WO/2005/041346||COUPLING STRUCTURE FOR CYLINDRICAL RESONATORS|
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