US 11,757,484 B2
Radio frequency front-end circuit and mobile terminal
Cheng-Nan Hsieh, Guangdong (CN); and Xuefeng Sheng, Guangdong (CN)
Assigned to Vivo Mobile Communication Co., Ltd., Guangdong (CN)
Filed by VIVO MOBILE COMMUNICATION CO., LTD., Guangdong (CN)
Filed on Sep. 22, 2021, as Appl. No. 17/481,409.
Application 17/481,409 is a continuation of application No. PCT/CN2020/080003, filed on Mar. 18, 2020.
Claims priority of application No. 201910222617.0 (CN), filed on Mar. 22, 2019.
Prior Publication US 2022/0014229 A1, Jan. 13, 2022
Int. Cl. H04B 1/44 (2006.01); H04B 7/0404 (2017.01)
CPC H04B 1/44 (2013.01) [H04B 7/0404 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A radio frequency front-end circuit, comprising:
a gating switch, separately connected to a first antenna, a second antenna, and a radio frequency circuit module; and
a double-pole double-throw switch, separately connected to the gating switch, a third antenna, a fourth antenna, and a first radio frequency circuit; wherein
the gating switch is a three-pole three-throw switch;
the radio frequency circuit module is connected to a first target antenna in the first antenna and the second antenna by using the gating switch, and receives and/or transmits a signal by using the first target antenna; or the radio frequency circuit module is connected to a second target antenna in the third antenna and the fourth antenna by using the gating switch and the double-pole double-throw switch, and receives and/or transmits a signal by using the second target antenna;
in a case that the radio frequency circuit module is connected to the first target antenna in the first antenna and the second antenna, the first radio frequency circuit is connected to the second target antenna in the third antenna and the fourth antenna by using the double-pole double-throw switch, and receives and/or transmits a signal by using the second target antenna; and
in a case that the radio frequency circuit module is connected to the second target antenna in the third antenna and the fourth antenna, the first radio frequency circuit is connected to a third target antenna in the third antenna and the fourth antenna, other than the second target antenna, by using the double-pole double-throw switch, and receives and/or transmits a signal by using the third target antenna.