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公开(公告)号:US20210167810A1
公开(公告)日:2021-06-03
申请号:US17172715
申请日:2021-02-10
Applicant: Huawei Technologies Co., Ltd.
Inventor: Dror Regev , Doron Ezri , Shimon Shilo
IPC: H04B1/7107 , H04B1/04 , H04L5/14
Abstract: A radio frequency (RF) front end for wireless communications, in particular for use in a half duplex (HD) and/or full duplex (FD) transceiver. The RF front end is based on a quadrature balanced power amplifier (QBPA). The RF front end includes an antenna port for outputting a transmit signal to and receiving a receive signal from an antenna, and a receive port for outputting the receive signal to a signal processing section. Further, the QBPA is configured to receive a transmit input signal at a first port, receive a cancellation input signal at a fourth port, and receive the receive signal at a second port coupled to the antenna port.
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公开(公告)号:US11303321B2
公开(公告)日:2022-04-12
申请号:US17172715
申请日:2021-02-10
Applicant: Huawei Technologies Co., Ltd.
Inventor: Dror Regev , Doron Ezri , Shimon Shilo
IPC: H04B1/7107 , H04B1/04 , H04L5/14
Abstract: A radio frequency (RF) front end for wireless communications, in particular for use in a half duplex (HD) and/or full duplex (FD) transceiver. The RF front end is based on a quadrature balanced power amplifier (QBPA). The RF front end includes an antenna port for outputting a transmit signal to and receiving a receive signal from an antenna, and a receive port for outputting the receive signal to a signal processing section. Further, the QBPA is configured to receive a transmit input signal at a first port, receive a cancellation input signal at a fourth port, and receive the receive signal at a second port coupled to the antenna port.
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公开(公告)号:US10326480B2
公开(公告)日:2019-06-18
申请号:US15803002
申请日:2017-11-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Dror Regev , Shimon Shilo , Doron Ezri , Chirn Chye Boon , Xiang Yi , Junping Zhang , Gengen Hu , Dong Liang , Sheng Liu
Abstract: The communication receiver comprises a mixer being configured to mix the communication signal with a periodic mixing signal having a mixing frequency fC to obtain a mixed communication signal, wherein the mixed communication signal comprises a first frequency spectrum portion comprising the spectral region of interest being situated around a frequency fRF+fC and a second frequency spectrum portion comprising the spectral range of interest being situated around fRF−fC; a first demodulator being configured to demodulate a first frequency channel of the plurality of frequency channels within the spectral range of interest of the first frequency spectrum portion on the basis of a first local oscillator frequency fLO1; and a second demodulator being configured to demodulate a second frequency channel of the plurality of frequency channels within the spectral region of interest of the second frequency spectrum portion on the basis of a second local oscillator frequency fLO2.
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