HIGH-FREQUENCY CIRCUIT, HIGH-FREQUENCY COMPONENT, AND COMMUNICATION DEVICE

摘要

A high-frequency circuit is provided with first and second antenna terminals, transmitting terminals and first and second receiving terminals for first and second communication systems, and first and second switch circuits provided with common terminals and at least first and second switching terminals.  The first antenna terminal is connected to the common terminal of the first switch circuit.  The transmitting terminal for the first communication system is connected to the first switching terminal of the first switch circuit.  The second antenna terminal is connected to the common terminal of the second switch circuit.  The transmitting terminal for the second communication system is connected to the first switching terminal of the second switch circuit.  Each of the first receiving terminals for the first and second communication systems is connected to the second switching terminal of the first switch circuit via a first receiving-side branch circuit.  Each of the second receiving terminals for the first and second communication systems is connected to the second switching terminal of the second switch circuit via a second receiving-side branch circuit.