Patent ID: 11909086
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. The duplexer according to claim 10, wherein the dielectric body comprises a first dielectric block and a second dielectric block that are connected and are an integral structure, and a coupling adjustment structure is located between the first dielectric block and the second dielectric block, wherein:
the coupling adjustment structure is configured to adjust an amount of signal coupling between the first dielectric block and the second dielectric block;
the narrowband filtering structure, wherein the at least one second resonator comprises two second resonators, which are separately a first-order second resonator and a second-order second resonator that are coupled to each other;
the first-order second resonator and the wideband filtering structure are located in the first dielectric block, and the first-order second resonator is located on a side that is of the wideband filtering structure and that is close to the second dielectric block; and
the second-order second resonator is located in the second dielectric block.