Isolating down-conversion mixer for a radio frequency (RF) transceiver

    公开(公告)号:US12095491B2

    公开(公告)日:2024-09-17

    申请号:US18338642

    申请日:2023-06-21

    CPC classification number: H04B1/18

    Abstract: Carrier aggregation (CA) may cause interference between operation on two or more carriers within a user equipment (UE). This interference can degrade signal quality on one or more of the carriers involved in the carrier aggregation, which may be referred to as “desensing” one or more carriers. One or more isolating buffers may be coupled at a down-conversion mixer at a point where the down-conversion mixer receives a signal from a transmission line for isolating the transmission line from other transmission lines. The isolating buffer may reduce the effect of interference between multiple transmission lines carrying different carriers during carrier aggregation (CA) operation. The isolating buffers may be used in an RF transceiver supporting both 5G sub-7 GHz and 5G mmWave wireless networks and carrier aggregation across sub-7 GHz and mmWave bands.

    Configurable receive path for mixer-first or amplifier-first signal processing

    公开(公告)号:US11799507B2

    公开(公告)日:2023-10-24

    申请号:US17448499

    申请日:2021-09-22

    CPC classification number: H04B1/1638

    Abstract: Embodiments of this disclosure may include a receiver with a reconfigurable processing path for different signal conditions. Such a receiver may reconfigure between a mixer-first configuration and an amplifier-first configuration. In the mixer-first configuration, an RF input signal is not passed through an LNA for amplification before processing the RF input signal for downconversion to baseband and eventual extraction of the information in the signal. In the amplifier-first configuration, an RF input signal is passed through an LNA for amplification before processing the RF input signal for downconversion to baseband and eventual extraction of the information in the signal. Reconfiguring the receiver between mixer-first and amplifier-first configurations may be performed based on detection of jammer signals and/or measurement of signal-to-noise ratio (SNR).

    SINGLE-INPUT MULTIPLE-OUTPUT AMPLIFIERS WITH INDEPENDENT GAIN CONTROL PER OUTPUT
    8.
    发明申请
    SINGLE-INPUT MULTIPLE-OUTPUT AMPLIFIERS WITH INDEPENDENT GAIN CONTROL PER OUTPUT 有权
    具有独立增益控制的单输入多输出放大器

    公开(公告)号:US20140213209A1

    公开(公告)日:2014-07-31

    申请号:US13750905

    申请日:2013-01-25

    Abstract: Amplifiers with multiple outputs and separate gain control per output are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) may include first and second amplifier circuits. The first amplifier circuit may receive and amplify an input radio frequency (RF) signal based on a first variable gain and provide a first amplified RF signal. The second amplifier circuit may receive and amplify the input RF signal based on a second variable gain and provide a second amplified RF signal. The input RF signal may include a plurality of transmitted signals being received by the wireless device. The first variable gain may be adjustable independently of the second variable gain. Each variable gain may be set based on the received power level of at least one transmitted signal being received by the wireless device.

    Abstract translation: 公开了具有多个输出和每个输出的单独的增益控制的放大器。 在示例性设计中,设备(例如,无线设备或集成电路)可以包括第一和第二放大器电路。 第一放大器电路可以基于第一可变增益接收和放大输入射频(RF)信号,并提供第一放大RF信号。 第二放大器电路可以基于第二可变增益接收和放大输入RF信号,并提供第二放大RF信号。 输入RF信号可以包括由无线设备接收的多个发送信号。 第一可变增益可以独立于第二可变增益来调节。 可以基于由无线设备接收的至少一个发送信号的接收功率电平来设置每个可变增益。

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