Patent ID: 11942685
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A communication device comprising:
a first antenna having a first operating frequency;
a second antenna that is an array antenna including a plurality of radiating elements, the second antenna having a second operating frequency that is greater than the first operating frequency; and
a waveguide structure including a plurality of metals walls disposed in a grid pattern when viewed in a plan view, wherein
portions of the metals walls that surround a plurality of cavities formed by the metal walls constitute each of a plurality of unit waveguides,
each of the plurality of unit waveguides are disposed so as to respectively correspond to each of the plurality of radiating elements of the second antenna, and
the first antenna, the second antenna, and the waveguide structure are contained in a single housing.