Patent ID: 11955737
Assignee: NATIONAL UNIVERSITY CORPORATION SAITAMA UNIVERSITY
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. An antenna module, comprising:
a radiating element;
a filter device that includes a plurality of resonators; and
a ground electrode disposed between the radiating element and the filter device, the ground electrode facing the radiating element, wherein
the plurality of resonators includes a first resonator and a second resonator, the second resonator being disposed at a final stage of the filter device,
the first resonator is wirelessly, electromagnetically coupled to the radiating element via a first slot formed in the ground electrode, and the second resonator is wirelessly, electromagnetically coupled to the radiating element via a second slot formed in the ground electrode, the first slot has a smaller size than the second slot.