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Title:
RADIO FREQUENCY FRONT-END MODULE COVERING MULTIPLE FREQUENCY BANDS AND WIRELESS COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/061090
Kind Code:
A1
Abstract:
Embodiments of the present utility model disclose a radio frequency (RF) front-end module covering multiple frequency bands and a wireless communication device, the RF front-end module comprising an RF transceiver, a first power amplifier working in a first frequency band, a second power amplifier working in a second frequency band, a first low-noise amplifier, at least three band-pass filters, a first selector switch, a second selector switch, a third selector switch and a first antenna; receiving and transmitting channels of the first frequency band and the second frequency band may be selected by means of the first to third selector switches, and at least one receiving and transmitting channel in the first frequency band and the second frequency band is further subdivided into a plurality of independent channels by providing the plurality of band-pass filters. Therefore, it is guaranteed that the plurality of subdivided frequency bands are provided with dedicated filters, thereby suppressing to a great extent out-of-band interference while in-band characteristics are ensured, and transmitting and receiving performance is guaranteed.

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Inventors:
HU SHIFU (CN)
GUO JIASHUAI (CN)
Application Number:
PCT/CN2022/116422
Publication Date:
April 20, 2023
Filing Date:
September 01, 2022
Export Citation:
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Assignee:
LANSUS TECH INC (CN)
International Classes:
H04B1/40
Foreign References:
CN215990786U2022-03-08
CN213213460U2021-05-14
CN112187297A2021-01-05
CN112953573A2021-06-11
CN113016145A2021-06-22
CN104518818A2015-04-15
US20200412403A12020-12-31
US20200366322A12020-11-19
US20200083867A12020-03-12
Attorney, Agent or Firm:
SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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