Patent ID: 11876545
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A communication device comprising:
a radio-frequency integrated circuit configured to process a radio-frequency signal received or to be transmitted by an antenna element; and
a radio-frequency module configured to communicate the radio-frequency signal between the antenna element and the radio-frequency integrated circuit, wherein
the radio frequency module comprises
a mounting board having a first major surface and a second major surface on opposite sides of the mounting board; and
a multiplexer including a first common terminal, a transmit filter coupled to the first common terminal, and a receive filter coupled to the first common terminal, wherein
the mounting board includes a ground electrode layer formed by a planar wiring pattern,
the transmit filter is mounted on the first major surface of the mounting board,
the receive filter is mounted on the second major surface of the mounting board,
the mounting board is interposed between the transmit filter and the receive filter, and
when the mounting board is viewed in a plan view
a footprint of the transmit filter at least partially overlaps a footprint of the receive filter, and
the footprint of the transmit filter and the footprint of the receive filter at least partially overlap with the ground electrode layer of the mounting board interposed between the transmit filter and the receive filter.