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1. 发明授权

US07126421B2 Method for aligning feed forward loops 有权
标题翻译：用于对齐前馈回路的方法
公开(公告)号：US07126421B2
公开(公告)日：2006-10-24
申请号：US10668912
申请日：2003-09-23
申请人： Mark Gurvich , Nikolai Maslennikov , Alexander Rabinovich , Bill Vassilakis
发明人： Mark Gurvich , Nikolai Maslennikov , Alexander Rabinovich , Bill Vassilakis
IPC分类号： H03F1/00
CPC分类号： H03F1/3229 , H03F1/3223 , H03F3/189 , H03F2201/3212
摘要： A method for aligning a feed forward radio frequency power amplifier includes applying a radio frequency signal to the feed forward radio frequency power amplifier and monitoring a radio frequency signal from the feed forward radio frequency power amplifier, without opening a break point of the feed forward radio frequency amplifier.
摘要翻译：用于对准前馈射频功率放大器的方法包括将射频信号施加到前馈射频功率放大器，并且监视来自前馈射频功率放大器的射频信号，而不打开前馈无线电的断点频率放大器。

2. 发明申请

US20050062532A1 Method for aligning feed forward loops 有权
标题翻译：用于对齐前馈回路的方法
公开(公告)号：US20050062532A1
公开(公告)日：2005-03-24
申请号：US10668912
申请日：2003-09-23
申请人： Mark Gurvich , Nikolai Maslennikov , Alexander Rabinovich , Bill Vassilakis
发明人： Mark Gurvich , Nikolai Maslennikov , Alexander Rabinovich , Bill Vassilakis
IPC分类号： H03F20060101 , H03F1/00 , H03F1/32 , H03F3/189
CPC分类号： H03F1/3229 , H03F1/3223 , H03F3/189 , H03F2201/3212
摘要： A method for aligning a feed forward radio frequency power amplifier includes applying a radio frequency signal to the feed forward radio frequency power amplifier and monitoring a radio frequency signal from the feed forward radio frequency power amplifier, without opening a break point of the feed forward radio frequency amplifier.
摘要翻译：用于对准前馈射频功率放大器的方法包括将射频信号施加到前馈射频功率放大器，并且监视来自前馈射频功率放大器的射频信号，而不打开前馈无线电的断点频率放大器。

3. 发明申请

US20090195467A1 COMPOUND TWO-WAY ANTENNA WITH INSTALLATION COMPENSATOR 有权
标题翻译：具有安装补偿器的复合双路天线
公开(公告)号：US20090195467A1
公开(公告)日：2009-08-06
申请号：US12361307
申请日：2009-01-28
申请人： Bill Vassilakis , Nikolai Maslennikov , Alexander Rabinovich
发明人： Bill Vassilakis , Nikolai Maslennikov , Alexander Rabinovich
IPC分类号： H01Q3/08 , H01Q1/12
CPC分类号： H01Q1/1228 , H01Q3/08
摘要： A two-way terrestrial antenna, employing electrical down tilt and azimuth beam adjustment capability is disclosed. Such antenna configuration allows for a variable antenna coverage footprint within designated coverage sector. To compensate for installation support structure variations the two-way antenna employs a positional sensor that can provide feedback to BTS or automatically compensate azimuth and tilt beam angles so as to provide uniform sector coverage. In particular by monitoring tri-vector gravitational inclinometer and earth magnetic field sensors, and determining correction factors for antenna tilt and azimuth beam adjustments, uniform or compensated sector coverage is provided.
摘要翻译：公开了一种采用电下倾和方位角调节能力的双向地面天线。这种天线配置允许在指定覆盖区域内的可变天线覆盖区域。为了补偿安装支持结构的变化，双向天线采用可以向BTS提供反馈或自动补偿方位角和倾斜波束角度的位置传感器，以便提供统一的扇区覆盖。特别是通过监测三矢量重力倾角仪和地球磁场传感器，并确定天线倾斜和方位角光束调整的校正因子，提供均匀或补偿的扇区覆盖。

4. 发明授权

US06937094B2 Systems and methods of dynamic bias switching for radio frequency power amplifiers 有权
标题翻译：射频功率放大器的动态偏置切换系统和方法
公开(公告)号：US06937094B2
公开(公告)日：2005-08-30
申请号：US10386013
申请日：2003-03-11
申请人： Ahmad Khanifar , Nikolai Maslennikov , Mark Gurvich , Bill Vassilakis
发明人： Ahmad Khanifar , Nikolai Maslennikov , Mark Gurvich , Bill Vassilakis
IPC分类号： H03F1/02 , H03F1/30 , H03F1/32 , H03G3/00 , H03G3/20
CPC分类号： H03F1/3229 , H03F1/0244 , H03F1/301 , H03G3/004
摘要： A dynamic bias switching circuit is provided that includes a switching unit for switching between a first signal level and a second signal level based on a signal envelope of an input signal to an amplifier.
摘要翻译：提供了一种动态偏置开关电路，其包括用于基于输入信号到放大器的信号包络在第一信号电平和第二信号电平之间切换的开关单元。

5. 发明授权

US08446327B2 Compound two-way antenna with installation compensator 有权
标题翻译：复合双向天线带安装补偿器
公开(公告)号：US08446327B2
公开(公告)日：2013-05-21
申请号：US12361307
申请日：2009-01-28
申请人： Bill Vassilakis , Nikolai Maslennikov , Alexander Rabinovich
发明人： Bill Vassilakis , Nikolai Maslennikov , Alexander Rabinovich
IPC分类号： H01Q3/00
CPC分类号： H01Q1/1228 , H01Q3/08
摘要： A two-way terrestrial antenna, employing electrical down tilt and azimuth beam adjustment capability is disclosed. Such antenna configuration allows for a variable antenna coverage footprint within designated coverage sector. To compensate for installation support structure variations the two-way antenna employs a positional sensor that can provide feedback to BTS or automatically compensate azimuth and tilt beam angles so as to provide uniform sector coverage. In particular by monitoring tri-vector gravitational inclinometer and earth magnetic field sensors, and determining correction factors for antenna tilt and azimuth beam adjustments, uniform or compensated sector coverage is provided.
摘要翻译：公开了一种采用电下倾和方位角调节能力的双向地面天线。这种天线配置允许在指定覆盖区域内的可变天线覆盖区域。为了补偿安装支持结构的变化，双向天线采用可以向BTS提供反馈或自动补偿方位角和倾斜波束角度的位置传感器，以便提供统一的扇区覆盖。特别是通过监测三矢量重力倾角仪和地球磁场传感器，并确定天线倾斜和方位角光束调整的校正因子，提供均匀或补偿的扇区覆盖。

6. 发明申请

US20070018723A1 Enhanced efficiency feed forward power amplifier with delay mismatched error cancellation loop 有权
公开(公告)号：US20070018723A1
公开(公告)日：2007-01-25
申请号：US11372513
申请日：2006-03-10
申请人： Ezmarai Arbab , Mark Gurvich , Matthew Hunton , Alexander Rabinovich , Bill Vassilakis
发明人： Ezmarai Arbab , Mark Gurvich , Matthew Hunton , Alexander Rabinovich , Bill Vassilakis
IPC分类号： H03F1/26
CPC分类号： H03F1/32 , H03F1/3223 , H03F1/3229 , H03F1/3235 , H03F2200/204 , H03F2200/321 , H03F2201/3212
摘要： A delay mismatched feed forward power amplifier is disclosed. Loop 1 includes a main amplifier and is used to derive a carrier cancelled sample of the main amplifier output. Loop 2 includes an error amplifier used to amplify the carrier cancelled signal derived from Loop 1 operation in order to cancel distortion products generated due to the nonlinear nature of the main amplifier. Loop 2 also utilizes a very short Loop 2 delay line. A significant efficiency gain is provided due to reduced output power losses associated with the Loop 2 delay line. Lower output losses also results in lower distortion levels produced by the main amplifier. This, in turn, reduces the size and performance requirements placed on the error amplifier. A smaller and more efficient error amplifier is employed resulting in further amplifier system efficiency improvement. The delay mismatch is compensated by a third control loop, a special adaptive control algorithm or a combination thereof.

7. 发明授权

US07301397B2 Enhanced efficiency feed forward power amplifier with delay mismatched error cancellation loop 有权
标题翻译：具有延迟失配误差消除环路的增强型前馈功率放大器
公开(公告)号：US07301397B2
公开(公告)日：2007-11-27
申请号：US11372513
申请日：2006-03-10
申请人： Ezmarai Arbab , Mark Gurvich , Matthew J. Hunton , Alexander Rabinovich , Bill Vassilakis
发明人： Ezmarai Arbab , Mark Gurvich , Matthew J. Hunton , Alexander Rabinovich , Bill Vassilakis
IPC分类号： H03F1/00
CPC分类号： H03F1/32 , H03F1/3223 , H03F1/3229 , H03F1/3235 , H03F2200/204 , H03F2200/321 , H03F2201/3212
摘要： A delay mismatched feed forward power amplifier is disclosed. Loop 1 includes a main amplifier and is used to derive a carrier cancelled sample of the main amplifier output. Loop 2 includes an error amplifier used to amplify the carrier cancelled signal derived from Loop 1 operation in order to cancel distortion products generated due to the nonlinear nature of the main amplifier. Loop 2 also utilizes a very short Loop 2 delay line. A significant efficiency gain is provided due to reduced output power losses associated with the Loop 2 delay line. Lower output losses also results in lower distortion levels produced by the main amplifier. This, in turn, reduces the size and performance requirements placed on the error amplifier. A smaller and more efficient error amplifier is employed resulting in further amplifier system efficiency improvement. The delay mismatch is compensated by a third control loop, a special adaptive control algorithm or a combination thereof.
摘要翻译：公开了延迟失配的前馈功率放大器。环路1包括主放大器，用于导出主放大器输出的载波消除采样。环路2包括用于放大从环路1操作导出的载波消除信号的误差放大器，以便消除由于主放大器的非线性特性而产生的失真产物。环路2也采用非常短的Loop2延迟线。由于与环路2延迟线相关联的降低的输出功率损耗，提供了显着的效率增益。较低的输出损耗也导致主放大器产生的失真水平较低。这反过来又降低了放在误差放大器上的尺寸和性能要求。使用更小且更有效的误差放大器导致进一步的放大器系统效率改进。延迟失配由第三控制回路，特殊自适应控制算法或其组合补偿。

8. 发明授权

US07038540B2 Enhanced efficiency feed forward power amplifier utilizing reduced cancellation bandwidth and small error amplifier 有权
标题翻译：增强效率前馈功率放大器利用减小的消除带宽和小误差放大器
公开(公告)号：US07038540B2
公开(公告)日：2006-05-02
申请号：US10775799
申请日：2004-02-10
申请人： Mark Gurvich , Bill Vassilakis , Ezmarai Arbab , Alexander Rabinovich
发明人： Mark Gurvich , Bill Vassilakis , Ezmarai Arbab , Alexander Rabinovich
IPC分类号： H03F1/00 , H03F1/26
CPC分类号： H03F1/3229 , H03F1/3247
摘要： A feed forward power amplifier is disclosed which utilizes three signal cancellation loops. Loop 1 includes a main amplifier and is used to derive a carrier cancelled sample of the main amplifier output. Loop 2 includes an error amplifier used to amplify the carrier cancelled signal derived from Loop 1 operation in order to cancel distortion products generated due to the nonlinear nature of the main amplifier. Loop 2 also utilizes a very short Loop 2 delay line. A significant efficiency gain is provided due to reduced output power losses associated with the Loop 2 delay line. Lower output losses also results in lower distortion levels produced by the main amplifier. This, in turn, reduces the size and performance requirements placed on the error amplifier. A smaller and more efficient error amplifier is employed resulting in further amplifier system efficiency improvement. A spurious signal detector for out-of-band distortion detection and an associated microcontroller for Loop 1 and Loop 2 control are also provided. A third signal cancellation loop is utilized to sample the amplifier output and reduce the carrier level of the signals sampled at the output of the amplifier before providing the sampled output to the spurious signal detector. By significantly reducing the carrier power level relative to distortion power levels a cost effective spurious signal detector can be utilized. This also provides a faster conversion time in Loop 2 cancellation and enhanced cancellation of out-of-band distortion products due to a greater useful dynamic range available for the DSP employed in the spurious signal detector.
摘要翻译：公开了一种利用三个信号消除环路的前馈功率放大器。环路1包括主放大器，用于导出主放大器输出的载波消除采样。环路2包括用于放大从环路1操作导出的载波消除信号的误差放大器，以便消除由于主放大器的非线性特性而产生的失真产物。环路2也采用非常短的Loop2延迟线。由于与环路2延迟线相关联的降低的输出功率损耗，提供了显着的效率增益。较低的输出损耗也导致主放大器产生的失真水平较低。这反过来又降低了放在误差放大器上的尺寸和性能要求。使用更小且更有效的误差放大器导致进一步的放大器系统效率改进。还提供了用于带外失真检测的杂散信号检测器和用于环路1和环路2控制的相关微控制器。在将采样输出提供给寄生信号检测器之前，利用第三信号消除环路来对放大器输出进行采样并降低在放大器的输出处采样的信号的载波电平。通过相对于失真功率电平显着降低载波功率电平，可以利用成本有效的寄生信号检测器。这也提供了循环2消除中更快的转换时间，并且由于在伪信号检测器中使用的DSP可用的更大的有用动态范围，增强了带外失真产物的消除。

9. 发明授权

US06794933B2 Fast forward RF power amplifier with high efficiency main amplifier and highly linear error amplifier 有权
标题翻译：具有高效率主放大器和高线性误差放大器的快进RF功率放大器
公开(公告)号：US06794933B2
公开(公告)日：2004-09-21
申请号：US10365111
申请日：2003-02-12
申请人： Mark Gurvich , Ezmarai Arbab , Bill Vassilakis
发明人： Mark Gurvich , Ezmarai Arbab , Bill Vassilakis
IPC分类号： H03F366
CPC分类号： H03F1/3235
摘要： A feed forward RF power amplifier which provides both high efficiency and minimal distortion in broad bandwidth RF applications. The feed forward power amplifier includes a main amplifier biased to provide high efficiency and an error amplifier biased to provide highly linear operation through substantially the entire operating range. Signal peaks which introduce distortion components at the main amplifier output are cancelled by the linear operation of the error amplifier.
摘要翻译：前馈射频功率放大器，可在宽带宽RF应用中提供高效率和最小失真。前馈功率放大器包括偏置以提供高效率的主放大器和偏置的误差放大器，以在基本上整个工作范围内提供高度线性的操作。在主放大器输出处引入失真分量的信号峰值被误差放大器的线性运算所抵消。

10. 发明申请

US20090079653A1 BROADBAND COPLANAR ANTENNA ELEMENT 有权
标题翻译：宽带共线天线元件
公开(公告)号：US20090079653A1
公开(公告)日：2009-03-26
申请号：US12212533
申请日：2008-09-17
申请人： Kostyantyn SEMONOV , Alexander Rabinovich , Bill Vassilakis
发明人： Kostyantyn SEMONOV , Alexander Rabinovich , Bill Vassilakis
IPC分类号： H01Q9/16 , H01Q1/38
CPC分类号： H01Q1/38 , H01Q9/065 , H01Q9/28 , H01Q19/005 , H01Q19/24
摘要： A broadband antenna element configuration having a radiation pattern useful in an antenna array containing a plurality of driven radiating elements that are spatially arranged is disclosed. The antenna element is coplanarly disposed on a suitable planar substrate of dielectric material. The antenna element utilizes a pair of balanced dipole arm elements symmetrically disposed about the centerline of a balanced feed network. Balanced feed network elements are disposed in a broadside symmetrical configuration on first plane and second plane on each side of the aforementioned dielectric. Disposed proximate to each dipole arm element are partially overlapping, parallel planar, frequency bandwidth expanding microstrip lines. The combination of dipole arms and parasitically coupled microstrip lines provides a broad bandwidth radiating element suitable for use in antenna arrays.
摘要翻译：公开了一种宽带天线元件配置，其具有在包含空间布置的多个被驱动辐射元件的天线阵列中有用的辐射图。天线元件共面设置在合适的电介质材料平面基板上。天线元件利用对称地布置在平衡馈电网络的中心线上的一对平衡偶极臂元件。平衡的馈电网络元件以前述电介质的每一侧上的第一平面和第二平面上的宽边对称配置设置。接近每个偶极臂元件的部分是部分重叠的平行平面的带宽扩展微带线。偶极臂和寄生耦合微带线的组合提供适用于天线阵列的宽带辐射元件。

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