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1. 发明申请

US20140320173A1 FRACTIONAL PHASE LOCKED LOOP HAVING AN EXACT OUTPUT FREQUENCY AND PHASE AND METHOD OF USING THE SAME 审中-公开
标题翻译：具有精确输出频率和相位的相位锁相环及其使用方法
公开(公告)号：US20140320173A1
公开(公告)日：2014-10-30
申请号：US14329293
申请日：2014-07-11
申请人： Hittite Microwave Corporation
发明人： Mark M. Cloutier , Gord Allan , Tudor Lipan
IPC分类号： H03L7/197
CPC分类号： H03L7/1976 , H03L7/0994
摘要： A fractional-N frequency synthesizer having an exact output frequency and phase includes a phase locked loop including a phase detector responsive to a reference signal and a fractional divider. The phase locked loop has an output signal whose frequency is a fractional multiple of the input reference signal. The synthesizer also includes a modulator having a modulus for providing an output to the fractional divider, in which the modulus multiplied by the ratio of the frequency of the output signal to the frequency of the reference signal is a non-integer number.
摘要翻译：具有精确输出频率和相位的分数N频率合成器包括锁相环，其包括响应于参考信号的相位检测器和分数分频器。锁相环具有输出信号，其频率是输入参考信号的分数倍。合成器还包括具有用于向分数分频器提供输出的模数的调制器，其中模数乘以输出信号的频率与参考信号的频率的比率是非整数。

2. 发明申请

US20140269665A1 Fast Turn On System For A Synthesized Source Signal 有权
标题翻译：快速打开合成源信号的系统
公开(公告)号：US20140269665A1
公开(公告)日：2014-09-18
申请号：US13833324
申请日：2013-03-15
申请人： Hittite Microwave Corporation
发明人： Mark M. Cloutier , Greg Bachmanek , Tolga Pamir
IPC分类号： H04J3/06
CPC分类号： H03L7/00 , H03F1/30 , H03F3/00 , H03F3/195 , H03F3/45475 , H03F3/72 , H03F2200/451 , H03F2200/453 , H03F2200/459 , H03G3/348
摘要： A fast turn on compensation system for a synthesized signal source includes a synthesized signal source coupled to a power supply and configured to generate a phase stable radio frequency (RF) output signal. A mute amplifier is coupled to the synthesized signal source and the power supply. A dummy amplifier is coupled to the mute amplifier and the power supply. A mute controller is coupled to the mute amplifier and the dummy amplifier, the mute controller is responsive to an enable signal and configured to enable the dummy amplifier and disable the mute amplifier when no RF output signal is being generated and disable the dummy amplifier and enable the mute amplifier when the RF output signal is being generated such that total power supply current delivered to the synthesized signal source and the dummy amplifier or mute amplifier is approximately constant before, during, and after enabling the mute amplifier to reduce phase disturbance of the RF output signals.
摘要翻译：用于合成信号源的快速启动补偿系统包括耦合到电源并被配置为产生相位稳定射频（RF）输出信号的合成信号源。静音放大器耦合到合成信号源和电源。虚拟放大器耦合到静音放大器和电源。静音控制器耦合到静音放大器和虚拟放大器，静音控制器响应于使能信号，并配置为使能虚拟放大器，并且在没有产生RF输出信号时禁用静音放大器，并禁用虚拟放大器并使能静音放大器当RF输出信号被产生时，使得在使能静音放大器减少RF的相位扰动之前，期间和之后传送到合成信号源和虚拟放大器或静音放大器的总电源电流几乎恒定输出信号。

3. 发明授权

US09172381B2 Fast turn on system for a synthesized source signal 有权
标题翻译：快速打开系统的合成源信号
公开(公告)号：US09172381B2
公开(公告)日：2015-10-27
申请号：US13833324
申请日：2013-03-15
申请人： Hittite Microwave Corporation
发明人： Mark M. Cloutier , Greg Bachmanek , Tolga Pamir
IPC分类号： H04J3/06 , H03L7/00 , H03F3/00
CPC分类号： H03L7/00 , H03F1/30 , H03F3/00 , H03F3/195 , H03F3/45475 , H03F3/72 , H03F2200/451 , H03F2200/453 , H03F2200/459 , H03G3/348
摘要： A fast turn on compensation system for a synthesized signal source includes a synthesized signal source coupled to a power supply and configured to generate a phase stable radio frequency (RF) output signal. A mute amplifier is coupled to the synthesized signal source and the power supply. A dummy amplifier is coupled to the mute amplifier and the power supply. A mute controller is coupled to the mute amplifier and the dummy amplifier, the mute controller is responsive to an enable signal and configured to enable the dummy amplifier and disable the mute amplifier when no RF output signal is being generated and disable the dummy amplifier and enable the mute amplifier when the RF output signal is being generated such that total power supply current delivered to the synthesized signal source and the dummy amplifier or mute amplifier is approximately constant before, during, and after enabling the mute amplifier to reduce phase disturbance of the RF output signals.
摘要翻译：用于合成信号源的快速启动补偿系统包括耦合到电源并被配置为产生相位稳定射频（RF）输出信号的合成信号源。静音放大器耦合到合成信号源和电源。虚拟放大器耦合到静音放大器和电源。静音控制器耦合到静音放大器和虚拟放大器，静音控制器响应于使能信号，并配置为使能虚拟放大器，并且在没有产生RF输出信号时禁用静音放大器，并禁用虚拟放大器并使能静音放大器当RF输出信号被产生时，使得在使能静音放大器减少RF的相位扰动之前，期间和之后传送到合成信号源和虚拟放大器或静音放大器的总电源电流几乎恒定输出信号。

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