Patent ID: 11862835
Assignee: CYNTEC CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A dielectric filter with multilayer resonator, comprising:
a dielectric block;
at least one multilayer resonator formed in said dielectric block, wherein each said multilayer resonator is in a column shape extending in a first direction into said dielectric block and is formed of multiple metal layers paralleling and overlapping each other in a second direction perpendicular to said first direction, and each said multilayer resonator is provided with a first signal terminal, a second signal terminal and a ground terminal;
at least two groups of vias extending in said second direction and connecting said metal layers in each said multilayer resonator, wherein said vias of each said group in each said multilayer resonator are connected to each other and every said group of said vias in each said multilayer resonator are spaced apart in said first direction; and
a ground electrode, wherein said ground terminal of each said multilayer resonator extends in said first direction to a side of said dielectric block and connected with said ground electrode.