Patent ID: 11949405
Assignee: WISOL CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. The DMS filter according to claim 1, wherein in the second IDT and a third IDT included in the plurality of IDTs to be adjacent to each other, one Type 1 electrode finger of the third IDT is disposed between two Type 1 electrode fingers of the second IDT to control the capacitances between the input and output terminals of the DMS filter,
wherein the capacitances formed between the input and output terminals are further controlled by increasing or decreasing a number of pairs of the Type 1 electrode fingers each pair being composed of one Type 1 electrode finger of the second IDT and one type 1 electrode finger of the third IDT, with a predetermined capacitance generated between each pair.