Patent ID: 11901920
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The front-end circuit according to claim 1, wherein:
the diversity circuit further comprises:
a first low-noise amplifier in the first reception path that is configured to amplify the third radio frequency signal input from the first input terminal, and to output the amplified third radio frequency signal to the third reception terminal; and
a second low-noise amplifier in the second reception path that is configured to amplify the fourth radio frequency signal input from the first input terminal, and to output the amplified fourth radio frequency signal to the fourth reception terminal,

when the first radio frequency signal is simultaneously received with the second radio frequency signal in the second signal path, the first low-noise amplifier and the second low-noise amplifier are in an amplification operation state, and
when the first radio frequency signal in the first signal path is received simultaneously with transmission of the second radio frequency signal in the second signal path, the first low-noise amplifier is in an amplification operation state and the second low-noise amplifier is in an amplification stop state.