Title:
1T2R RADIO-FREQUENCY CIRCUIT AND WIRELESS COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/248344
Kind Code:
A1
Abstract:
Disclosed are a 1T2R radio-frequency circuit and a wireless communication device. The radio-frequency circuit comprises first and second radio-frequency amplifiers, first and second transceiving switches, first and second low-noise amplifiers, and first to third channel switches, wherein the first radio-frequency amplifier and the first low-noise amplifier are respectively connected to the first channel switch by means of the first transceiving switch, and the second radio-frequency amplifier and the second low-noise amplifier are respectively connected to the first channel switch by means of the second transceiving switch; an output end of the first low-noise amplifier is connected to a plurality of receivers by means of the second channel switch, and an output end of the second low-noise amplifier is connected to the plurality of receivers by means of the third channel switch; and a radio-frequency transmission signal is respectively transmitted to one of a plurality of antennas by means of the first radio-frequency amplifier or the second radio-frequency amplifier, so as to realize one-way transmission, and a radio-frequency reception signal is received by means of any two of the plurality of antennas and simultaneously passes through the first low-noise amplifier and the second low-noise amplifier to be amplified and output, so as to realize two-way reception.
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Inventors:
GU JIANZHONG (CN)
Application Number:
PCT/CN2020/095279
Publication Date:
December 16, 2021
Filing Date:
June 10, 2020
Export Citation:
Assignee:
XINPLETEK SHANGHAI CO LTD (CN)
International Classes:
H03F3/24; H04B1/40
Domestic Patent References:
| WO2018236826A1 | 2018-12-27 |
Foreign References:
| CN110943757A | 2020-03-31 | |||
| CN108599779A | 2018-09-28 | |||
| CN108923792A | 2018-11-30 |
Attorney, Agent or Firm:
SHANGHAI QIHE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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