公开(公告)号：US12003270B2

公开(公告)日：2024-06-04

申请号：US17469755

申请日：2021-09-08

Applicant: Qualcomm Incorporated

Inventor： Rimon Mansour ,  Samel Celebi

IPC: H04B1/50 ,  H04L25/03

CPC classification number: H04B1/50 ,  H04L25/03891

Abstract: An apparatus is disclosed for passive intermodulation distortion filtering. The apparatus includes a radio-frequency front-end circuit. The radio-frequency front-end circuit includes a transmit filter circuit and a receive filter circuit. The transmit filter circuit includes a passive circuit configured to combine at least two radio-frequency transmit signals associated with different transmit frequency bands. The transmit filter circuit also includes a filter coupled between the passive circuit and a first feed of an antenna. The filter is configured to attenuate frequencies associated with a receive frequency band. The receive filter circuit is coupled to a second feed of the antenna and is configured to pass the frequencies associated with the receive frequency band.

公开(公告)号：US09356632B2

公开(公告)日：2016-05-31

申请号：US14508902

申请日：2014-10-07

Applicant: QUALCOMM Incorporated

Inventor： Haim Mendel Weissman ,  Rimon Mansour ,  James Ian Jaffee

IPC: H04B1/10 ,  H04B1/04

CPC classification number: H04B1/0475 ,  H03F1/3223 ,  H03F3/24 ,  H04B1/005 ,  H04B1/0483 ,  H04B15/04 ,  H04B17/354 ,  H04B2001/0441 ,  H04B2215/00

Abstract: An intermodulation distortion canceller for use in multi-carrier transmitters is disclosed. In an exemplary embodiment, an apparatus includes a first transmit chain that transmits a first RF signal, a second transmit chain that transmits a second RF signal, and a canceller that outputs a first leakage cancellation signal that is input to the second transmit chain, and outputs a second leakage cancellation signal that is input to the first transmit chain, the canceller generates the first and second leakage cancellation signals from the first and second RF signals or from first and second baseband signals used to generate the first and second RF signals.

Abstract translation: 公开了一种用于多载波发射机的互调失真消除器。 在示例性实施例中，一种装置包括发射第一RF信号的第一发射链，发送第二RF信号的第二发射链，以及输出输入到第二发射链的第一泄漏消除信号的消除器，以及 输出输入到第一发射链的第二泄漏消除信号，消除器从第一和第二RF信号或从用于产生第一和第二RF信号的第一和第二基带信号产生第一和第二泄漏消除信号。

公开(公告)号：US20230071403A1

公开(公告)日：2023-03-09

申请号：US17469755

申请日：2021-09-08

Applicant: Qualcomm Incorporated

Inventor： Rimon Mansour ,  Samel Celebi

IPC: H04B1/50 ,  H04L25/03

Abstract: An apparatus is disclosed for passive intermodulation distortion filtering. The apparatus includes a radio-frequency front-end circuit. The radio-frequency front-end circuit includes a transmit filter circuit and a receive filter circuit. The transmit filter circuit includes a passive circuit configured to combine at least two radio-frequency transmit signals associated with different transmit frequency bands. The transmit filter circuit also includes a filter coupled between the passive circuit and a first feed of an antenna. The filter is configured to attenuate frequencies associated with a receive frequency band. The receive filter circuit is coupled to a second feed of the antenna and is configured to pass the frequencies associated with the receive frequency band.

公开(公告)号：US20160099733A1

公开(公告)日：2016-04-07

申请号：US14508902

申请日：2014-10-07

Applicant: QUALCOMM Incorporated

Inventor： Haim Mendel Weissman ,  Rimon Mansour ,  James Ian Jaffee

IPC: H04B1/04

CPC classification number: H04B1/0475 ,  H03F1/3223 ,  H03F3/24 ,  H04B1/005 ,  H04B1/0483 ,  H04B15/04 ,  H04B17/354 ,  H04B2001/0441 ,  H04B2215/00

Abstract: An intermodulation distortion canceler for use in multi-carrier transmitters is disclosed. In an exemplary embodiment, an apparatus includes a first transmit chain that transmits a first RF signal, a second transmit chain that transmits a second RF signal, and a canceler that outputs a first leakage cancellation signal that is input to the second transmit chain, and outputs a second leakage cancellation signal that is input to the first transmit chain, the canceler generates the first and second leakage cancellation signals from the first and second RF signals or from first and second baseband signals used to generate the first and second RF signals.

Abstract translation: 公开了一种用于多载波发射机的互调失真消除器。 在示例性实施例中，一种装置包括：发射第一RF信号的第一发射链，发送第二RF信号的第二发射链，以及输出输入到第二发射链的第一泄漏消除信号的消除器;以及 输出输入到第一发射链的第二泄漏消除信号，消除器从第一和第二RF信号或从用于产生第一和第二RF信号的第一和第二基带信号产生第一和第二泄漏抵消信号。