Patent ID: 8767859
Filing Date: 2014-07-01
Classification: H01L,H01P,H04B

Abstract:
1. A high-frequency circuit comprising: first and second antenna terminals, a transmitting terminal and first and second receiving terminals for a first communications system, a transmitting terminal and first and second receiving terminals for a second communications system, and first and second switch circuits for switching connections to transmitting paths and receiving paths, each having a common terminal and at least first and second switching terminals; said first antenna terminal being connected to the common terminal of said first switch circuit, and said transmitting terminal for the first communications system being connected to the first switching terminal of said first switch circuit in a first transmitting path; said second antenna terminal being connected to the common terminal of said second switch circuit, and said transmitting terminal for the second communications system being connected to the first switching terminal of said second switch circuit in a second transmitting path; said first receiving terminal for the first communications system and said first receiving terminal for the second communications system being connected to the second switching terminal of said first switch circuit via a first receiving-side multiplexer circuit in a first receiving path; and said second receiving terminal for the first communications system and said second receiving terminal for the second communications system being connected to the second switching terminal of said second switch circuit via a second receiving-side multiplexer circuit in a second receiving path.