RF integrated circuit comprising a frequency synthesizer not very sensitive to injection locking
    1.
    发明授权
    RF integrated circuit comprising a frequency synthesizer not very sensitive to injection locking 有权
    RF集成电路包括对注入锁定非常敏感的频率合成器

    公开(公告)号:US07324788B2

    公开(公告)日:2008-01-29

    申请号:US11036180

    申请日:2005-01-14

    CPC classification number: H04L27/362 H03L7/23

    Abstract: The present invention relates to an RF integrated circuit comprising a frequency synthesizer and a QAM modulator for modulating a baseband signal of frequency FBB, the frequency synthesizer supplying to the QAM modulator an output signal of frequency F1 adjustable with a frequency step ΔF1, for forming a carrier signal of the QAM modulator. According to the present invention, the frequency synthesizer is a Vernier effect frequency synthesizer comprising an auxiliary frequency synthesizer supplying an auxiliary signal of frequency F2 adjustable with a frequency step ΔF2 and a main frequency synthesizer having a phase-locked loop bandwidth at least two times higher than the frequency step ΔF2 of the auxiliary signal.

    Abstract translation: 本发明涉及一种RF集成电路,其包括频率合成器和用于调制频率F BBB的基带信号的QAM调制器,频率合成器向QAM调制器提供频率为F 1的可调整的输出信号 具有用于形成QAM调制器的载波信号的频率步长ΔF1。 根据本发明,频率合成器是一种游标效应频率合成器,其包括辅助频率合成器,该辅助频率合成器提供频率为F 2的辅助信号,该频率F 2可用频率步长ΔF2调节,主频率合成器具有至少两个锁相环带宽 高于辅助信号的频率步长ΔF2。

    RF integrated circuit comprising a frequency synthesizer not very sensitive to injection locking
    2.
    发明申请
    RF integrated circuit comprising a frequency synthesizer not very sensitive to injection locking 有权
    RF集成电路包括对注入锁定非常敏感的频率合成器

    公开(公告)号:US20050186918A1

    公开(公告)日:2005-08-25

    申请号:US11036180

    申请日:2005-01-14

    CPC classification number: H04L27/362 H03L7/23

    Abstract: The present invention relates to an RF integrated circuit comprising a frequency synthesizer and a QAM modulator for modulating a baseband signal of frequency FBB, the frequency synthesizer supplying to the QAM modulator an output signal of frequency F1 adjustable with a frequency step ΔF1, for forming a carrier signal of the QAM modulator. According to the present invention, the frequency synthesizer is a Vernier effect frequency synthesizer comprising an auxiliary frequency synthesizer supplying an auxiliary signal of frequency F2 adjustable with a frequency step ΔF2 and a main frequency synthesizer having a phase-locked loop bandwidth at least two times higher than the frequency step ΔF2 of the auxiliary signal.

    Abstract translation: 本发明涉及一种RF集成电路,其包括频率合成器和用于调制频率F BBB的基带信号的QAM调制器,频率合成器向QAM调制器提供频率为F 1的可调整的输出信号 具有用于形成QAM调制器的载波信号的频率步长ΔF1。 根据本发明,频率合成器是一种游标效应频率合成器,其包括辅助频率合成器,该辅助频率合成器提供频率为F 2的辅助信号,该频率F 2可用频率步长ΔF2调节,主频率合成器具有至少两个锁相环带宽 高于辅助信号的频率步长ΔF2。

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