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公开(公告)号：US07164328B2
公开(公告)日：2007-01-16
申请号：US10426557
申请日：2003-04-30
申请人： Jiren Yuan , Yijun Zhou
发明人： Jiren Yuan , Yijun Zhou
摘要： Various embodiments of a direct digital amplitude modulator (DDAM) for modulating radio frequency (RF) or intermediate frequency (IF) or baseband signal with the invented interpolation technique are disclosed. The interpolation technique greatly reduces the amplitudes of alias signals without using an analog filter. The embodiments therefore are significant for various communication transmitters to achieve simple structure, good linearity and high power efficiency.
摘要翻译： 本发明公开了用于调制射频（RF）或中频（IF）或基带信号的直接数字幅度调制器（DDAM）的各种实施例。 内插技术大大降低了别名信号的幅度，而不使用模拟滤波器。 因此，这些实施例对于各种通信发射机是重要的，以实现简单的结构，良好的线性度和高功率效率。
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公开(公告)号：US20050074073A1
公开(公告)日：2005-04-07
申请号：US10426557
申请日：2003-04-30
申请人： Jiren Yuan , Yijun Zhou
发明人： Jiren Yuan , Yijun Zhou
摘要： Various embodiments of a direct digital amplitude modulator (DDAM) for modulating radio frequency (RF) or intermediate frequency (IF) or baseband signal with the invented interpolation technique are disclosed. The interpolation technique greatly reduces the amplitudes of alias signals without using an analog filter. The embodiments therefore are significant for various communication transmitters to achieve simple structure, good linearity and high power efficiency.
摘要翻译： 本发明公开了用于调制射频（RF）或中频（IF）或基带信号的直接数字幅度调制器（DDAM）的各种实施例。 内插技术大大降低了别名信号的幅度，而不使用模拟滤波器。 因此，这些实施例对于各种通信发射机是重要的，以实现简单的结构，良好的线性度和高功率效率。
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公开(公告)号：US20130203364A1
公开(公告)日：2013-08-08
申请号：US13368855
申请日：2012-02-08
申请人： Dean F. Darnell , Yuehui Ouyang , Hao Xu , Enrique Ayala Vazquez , Yijun Zhou , Peter Bevelacqua , Joshua G. Nickel , Nanbo Jin , Matthew A. Mow , Robert W. Schlub , Mattia Pascolini , Hongfei Hu
发明人： Dean F. Darnell , Yuehui Ouyang , Hao Xu , Enrique Ayala Vazquez , Yijun Zhou , Peter Bevelacqua , Joshua G. Nickel , Nanbo Jin , Matthew A. Mow , Robert W. Schlub , Mattia Pascolini , Hongfei Hu
摘要： Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may form an antenna having first and second feeds at different locations. The transceiver circuit may have a first circuit that handles communications using the first feed and may have a second circuit that handles communications using the second feed. A first filter may be interposed between the first feed and the first circuit and a second filter may be interposed between the second feed and the second circuit. The first and second filters and the antenna may be configured so that the first circuit can use the first feed without being adversely affected by the presence of the second feed and so that the second circuit can use the second feed without being adversely affected by the presence of the first feed.
摘要翻译： 可以提供包含无线通信电路的电子设备。 无线通信电路可以包括射频收发器电路和天线结构。 天线结构可以形成在不同位置具有第一和第二馈送的天线。 收发器电路可以具有处理使用第一馈送的通信的第一电路，并且可以具有处理使用第二馈送的通信的第二电路。 第一过滤器可以插入在第一进料和第一回路之间，并且第二过滤器可以介于第二进料和第二回路之间。 第一和第二滤波器和天线可以被配置成使得第一电路可以使用第一馈电而不受第二馈电的存在的不利影响，并且使得第二电路可以使用第二馈电而不受存在的不利影响 的第一个饲料。
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公开(公告)号：US09160056B2
公开(公告)日：2015-10-13
申请号：US12752966
申请日：2010-04-01
申请人： Josh Nickel , Juan Zavala , Yijun Zhou , Mattia Pascolini , Robert W. Schlub , Ruben Caballero
发明人： Josh Nickel , Juan Zavala , Yijun Zhou , Mattia Pascolini , Robert W. Schlub , Ruben Caballero
CPC分类号： H01Q1/243 , H01Q1/48 , H01Q5/364 , H01Q9/0421 , H01Q9/42
摘要： Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. An inverted-F antenna may have first and second short circuit legs and a feed leg. The first and second short circuit legs and the feed leg may be connected to a folded antenna resonating element arm. The antenna resonating element arm and the first short circuit leg may be formed from portions of a conductive electronic device bezel. The folded antenna resonating element arm may have a bend. The bezel may have a gap that is located at the bend. Part of the folded resonating element arm may be formed from a conductive trace on a dielectric member. A spring may be used in connecting the conductive trace to the electronic device bezel portion of the antenna resonating element arm.
摘要翻译： 提供包含无线通信电路的电子设备。 无线通信电路可以包括射频收发器电路和天线结构。 倒F天线可以具有第一和第二短路腿和馈送腿。 第一和第二短路腿和进给腿可以连接到折叠天线谐振元件臂。 天线谐振元件臂和第一短路支腿可以由导电电子元件边框的部分形成。 折叠天线谐振元件臂可以具有弯曲部。 挡板可能有一个位于弯头处的间隙。 折叠谐振元件臂的一部分可以由电介质构件上的导电迹线形成。 可以使用弹簧将导电线路连接到天线谐振元件臂的电子设备边框部分。
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公开(公告)号：US08798554B2
公开(公告)日：2014-08-05
申请号：US13368855
申请日：2012-02-08
申请人： Dean F. Darnell , Yuehui Ouyang , Hao Xu , Enrique Ayala Vazquez , Yijun Zhou , Peter Bevelacqua , Joshua G. Nickel , Nanbo Jin , Matthew A. Mow , Robert W. Schlub , Mattia Pascolini , Hongfei Hu
发明人： Dean F. Darnell , Yuehui Ouyang , Hao Xu , Enrique Ayala Vazquez , Yijun Zhou , Peter Bevelacqua , Joshua G. Nickel , Nanbo Jin , Matthew A. Mow , Robert W. Schlub , Mattia Pascolini , Hongfei Hu
IPC分类号： H04B1/40
摘要： Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may form an antenna having first and second feeds at different locations. The transceiver circuit may have a first circuit that handles communications using the first feed and may have a second circuit that handles communications using the second feed. A first filter may be interposed between the first feed and the first circuit and a second filter may be interposed between the second feed and the second circuit. The first and second filters and the antenna may be configured so that the first circuit can use the first feed without being adversely affected by the presence of the second feed and so that the second circuit can use the second feed without being adversely affected by the presence of the first feed.
摘要翻译： 可以提供包含无线通信电路的电子设备。 无线通信电路可以包括射频收发器电路和天线结构。 天线结构可以形成在不同位置具有第一和第二馈送的天线。 收发器电路可以具有处理使用第一馈送的通信的第一电路，并且可以具有处理使用第二馈送的通信的第二电路。 第一过滤器可以插入在第一进料和第一回路之间，并且第二过滤器可以介于第二进料和第二回路之间。 第一和第二滤波器和天线可以被配置成使得第一电路可以使用第一馈电而不受第二馈电的存在的不利影响，并且使得第二电路可以使用第二馈电而不受存在的不利影响 的第一个饲料。
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公开(公告)号：US20110241949A1
公开(公告)日：2011-10-06
申请号：US12752966
申请日：2010-04-01
申请人： Josh Nickel , Juan Zavala , Yijun Zhou , Mattia Pascolini , Robert W. Schlub , Ruben Caballero
发明人： Josh Nickel , Juan Zavala , Yijun Zhou , Mattia Pascolini , Robert W. Schlub , Ruben Caballero
CPC分类号： H01Q1/243 , H01Q1/48 , H01Q5/364 , H01Q9/0421 , H01Q9/42
摘要： Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. An inverted-F antenna may have first and second short circuit legs and a feed leg. The first and second short circuit legs and the feed leg may be connected to a folded antenna resonating element arm. The antenna resonating element arm and the first short circuit leg may be formed from portions of a conductive electronic device bezel. The folded antenna resonating element arm may have a bend. The bezel may have a gap that is located at the bend. Part of the folded resonating element arm may be formed from a conductive trace on a dielectric member. A spring may be used in connecting the conductive trace to the electronic device bezel portion of the antenna resonating element arm.
摘要翻译： 提供包含无线通信电路的电子设备。 无线通信电路可以包括射频收发器电路和天线结构。 倒F天线可以具有第一和第二短路腿和馈送腿。 第一和第二短路腿和进给腿可以连接到折叠天线谐振元件臂。 天线谐振元件臂和第一短路支腿可以由导电电子元件边框的部分形成。 折叠天线谐振元件臂可以具有弯曲部。 挡板可能有一个位于弯头处的间隙。 折叠谐振元件臂的一部分可以由电介质构件上的导电迹线形成。 可以使用弹簧将导电线路连接到天线谐振元件臂的电子设备边框部分。
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公开(公告)号：US08299851B2
公开(公告)日：2012-10-30
申请号：US12736356
申请日：2009-03-31
申请人： Yijun Zhou , Yan Wah Michael Chia
发明人： Yijun Zhou , Yan Wah Michael Chia
IPC分类号： H03F3/38
CPC分类号： H03F1/0294 , H03F1/0211 , H03F3/211 , H03F3/217 , H03F3/24 , H03F2200/336
摘要： A high efficiency linear amplifier is disclosed. The amplifier comprises an input module having an input coupled to receive an input signal, a first output configured to provide a first signal component, and a second output configured to provide a second signal component. The amplifier also comprises a switching module having a switch input coupled to receive a switch signal, a first input coupled to the first output of the input module, a second input coupled to the second output of the input module, and at least a first output configured to provide a first composite signal. The amplifier further comprises an amplifier module having at least a first input coupled to the first output of the switching module and at least a first output, wherein the first and second signal components comprise constant envelope phase varying signals having different phase relationships and which correspond to the input signal, and wherein the first composite signal comprises temporally sequenced portions of the first and second signal components.
摘要翻译： 公开了一种高效线性放大器。 放大器包括具有耦合以接收输入信号的输入的输入模块，被配置为提供第一信号分量的第一输出和被配置为提供第二信号分量的第二输出。 放大器还包括具有耦合以接收开关信号的开关输入的开关模块，耦合到输入模块的第一输出的第一输入，耦合到输入模块的第二输出的第二输入，以及至少第一输出 被配置为提供第一复合信号。 放大器还包括放大器模块，其具有耦合到开关模块的第一输出的至少第一输入和至少第一输出，其中第一和第二信号分量包括具有不同相位关系的恒定包络相位变化信号，并且对应于 所述输入信号，并且其中所述第一复合信号包括所述第一和第二信号分量的时间上有序的部分。
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公开(公告)号：US20110102079A1
公开(公告)日：2011-05-05
申请号：US12736356
申请日：2009-03-31
申请人： Yijun Zhou , Yan Wah Michael Chia
发明人： Yijun Zhou , Yan Wah Michael Chia
IPC分类号： H03F3/68
CPC分类号： H03F1/0294 , H03F1/0211 , H03F3/211 , H03F3/217 , H03F3/24 , H03F2200/336
摘要： A high efficiency linear amplifier is disclosed. The amplifier comprises an input module having an input coupled to receive an input signal, a first output configured to provide a first signal component, and a second output configured to provide a second signal component. The amplifier also comprises a switching module having a switch input coupled to receive a switch signal, a first input coupled to the first output of the input module, a second input coupled to the second output of the input module, and at least a first output configured to provide a first composite signal. The amplifier further comprises an amplifier module having at least a first input coupled to the first output of the switching module and at least a first output, wherein the first and second signal components comprise constant envelope phase varying signals having different phase relationships and which correspond to the input signal, and wherein the first composite signal comprises temporally sequenced portions of the first and second signal components.
摘要翻译： 公开了一种高效线性放大器。 放大器包括具有耦合以接收输入信号的输入的输入模块，被配置为提供第一信号分量的第一输出和被配置为提供第二信号分量的第二输出。 放大器还包括具有耦合以接收开关信号的开关输入的开关模块，耦合到输入模块的第一输出的第一输入，耦合到输入模块的第二输出的第二输入，以及至少第一输出 被配置为提供第一复合信号。 放大器还包括放大器模块，该放大器模块至少具有耦合到开关模块的第一输出的第一输入和至少第一输出，其中第一和第二信号分量包括具有不同相位关系的恒定包络相位变化信号，并且对应于 所述输入信号，并且其中所述第一复合信号包括所述第一和第二信号分量的时间上有序的部分。
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