公开(公告)号：US08237619B2

公开(公告)日：2012-08-07

申请号：US12252324

申请日：2008-10-15

申请人： Bill Vassilakis ,  Senglee Foo

发明人： Bill Vassilakis ,  Senglee Foo

IPC分类号： H01Q21/00

CPC分类号： H01Q25/00 ,  H01Q3/40 ,  H01Q19/18

摘要： A low loss beam forming method and antenna structure are disclosed. The method and structure may preferably be used in forming two narrow beams within a cellular sector. This method allows an increase in the overall network capacity by using a three-column non-planar array and a compact, low-cost, low-loss 3-to-2 Beam-Forming Network (BFN). This structure produces two symmetrical beams with respect to the azimuth boresight. Radiation patterns of the two beams are designed to cover the entire azimuth coverage angle of a cellular sector with minimum beam-split loss and cross-over losses.

摘要翻译： 公开了低损耗波束形成方法和天线结构。 该方法和结构可优选用于在蜂窝扇区内形成两个窄波束。 这种方法允许通过使用三列非平面阵列和紧凑，低成本，低损耗的3对2波束形成网络（BFN）来增加总体网络容量。 该结构相对于方位角视轴产生两个对称的光束。 两个光束的辐射图案被设计成以最小的光束分裂损耗和交叉损耗来覆盖蜂窝扇区的整个方位角覆盖角。

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。

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。

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。

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。

公开(公告)号：US20090096702A1

公开(公告)日：2009-04-16

申请号：US12252324

申请日：2008-10-15

申请人： Bill Vassilakis ,  Senglee Foo

发明人： Bill Vassilakis ,  Senglee Foo

IPC分类号： H01Q21/00

CPC分类号： H01Q25/00 ,  H01Q3/40 ,  H01Q19/18

摘要： A low loss beam forming method and antenna structure are disclosed. The method and structure may preferably be used in forming two narrow beams within a cellular sector. This method allows an increase in the overall network capacity by using a three-column non-planar array and a compact, low-cost, low-loss 3-to-2 Beam-Forming Network (BFN). This structure produces two symmetrical beams with respect to the azimuth boresight. Radiation patterns of the two beams are designed to cover the entire azimuth coverage angle of a cellular sector with minimum beam-split loss and cross-over losses.

摘要翻译： 公开了低损耗波束形成方法和天线结构。 该方法和结构可优选用于在蜂窝扇区内形成两个窄波束。 这种方法允许通过使用三列非平面阵列和紧凑，低成本，低损耗的3对2波束形成网络（BFN）来增加总体网络容量。 该结构相对于方位角视轴产生两个对称的光束。 两个光束的辐射图案被设计成以最小的光束分裂损耗和交叉损耗来覆盖蜂窝扇区的整个方位角覆盖角。

公开(公告)号：US20090096698A1

公开(公告)日：2009-04-16

申请号：US12287661

申请日：2008-10-10

申请人： Kostyantyn Semonov ,  Alexander Rabinovich ,  Bill Vassilakis

发明人： Kostyantyn Semonov ,  Alexander Rabinovich ,  Bill Vassilakis

IPC分类号： H01Q1/38 ,  H01Q9/16 ,  H01Q1/42

CPC分类号： H01Q1/246 ,  H01Q1/24 ,  H01Q1/241 ,  H01Q1/38 ,  H01Q1/42 ,  H01Q9/16 ,  H01Q21/12 ,  H01Q25/005

摘要： The present invention provides an omni-directional antenna element configuration having a compensated radiation pattern. Broadband antenna elements are coplanarly disposed on a suitable planar dielectric material. A single element omni-directional antenna comprises a pair of balanced fed radiating microstrip elements symmetrically disposed about the centerline of a balanced signal feed network. Additionally, a pair of pattern augmentation rods are positioned on each side of and proximate to the planar dielectric material running longitudinally to the centerline axis of a balanced feed network. Disposed proximate to each radiating element are partially coplanar, frequency bandwidth expanding microstrip lines. The combination of radiating elements together with pattern augmentation rods provides a broad bandwidth omni-directional radiating element suitable for use in multi-element antenna arrays.

摘要翻译： 本发明提供了具有补偿辐射图的全向天线元件配置。 宽带天线元件共面设置在合适的平面介质材料上。 单元件全向天线包括一对平衡馈送辐射微带元件，其对称地设置在平衡信号馈送网络的中心线周围。 另外，一对图案增加杆被定位在纵向延伸到平衡进给网络的中心线轴线的平面介电材料的每侧上并且靠近平面电介质材料。 接近每个辐射元件的部分是共面的，带宽扩展的微带线。 辐射元件与图案增强杆的组合提供了适用于多元件天线阵列的宽带宽全向辐射元件。

公开(公告)号：US20080218425A1

公开(公告)日：2008-09-11

申请号：US12074473

申请日：2008-03-04

申请人： Gang Yi Deng ,  Bill Vassilakis ,  Matthew J. Hunton ,  Alexander Rabinovich

发明人： Gang Yi Deng ,  Bill Vassilakis ,  Matthew J. Hunton ,  Alexander Rabinovich

IPC分类号： H01Q3/02

CPC分类号： H01Q3/01 ,  H01Q3/18 ,  H01Q9/16 ,  H01Q19/108 ,  H01Q21/06

摘要： A single pole antenna array architecture provides an azimuth variable beamwidth. The array includes a number of driven radiating elements that are spatially arranged having a pivoting actuator so as to provide a controlled variation of the antenna array's radiation pattern.

摘要翻译： 单极天线阵列架构提供方位角可变波束宽度。 阵列包括多个驱动辐射元件，其在空间上布置有具有枢转致动器，以便提供天线阵列的辐射图案的受控变化。

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.

公开(公告)号：US09368861B2

公开(公告)日：2016-06-14

申请号：US13470064

申请日：2012-05-11

申请人： Kostyantyn Semonov ,  Alexander Rabinovich ,  Bill Vassilakis

发明人： Kostyantyn Semonov ,  Alexander Rabinovich ,  Bill Vassilakis

IPC分类号： H01Q19/10 ,  H01Q1/38 ,  H01Q1/24 ,  H01Q9/16 ,  H01Q21/12 ,  H01Q25/00

CPC分类号： H01Q1/246 ,  H01Q1/24 ,  H01Q1/241 ,  H01Q1/38 ,  H01Q1/42 ,  H01Q9/16 ,  H01Q21/12 ,  H01Q25/005

摘要： The present invention provides an omni-directional antenna element configuration having a compensated radiation pattern. Broadband antenna elements are coplanarly disposed on a suitable planar dielectric material. A single element omni-directional antenna comprises a pair of balanced fed radiating microstrip elements symmetrically disposed about the centerline of a balanced signal feed network. Additionally, a pair of pattern augmentation rods are positioned on each side of and proximate to the planar dielectric material running longitudinally to the centerline axis of a balanced feed network. Disposed proximate to each radiating element are partially coplanar, frequency bandwidth expanding microstrip lines. The combination of radiating elements together with pattern augmentation rods provides a broad bandwidth omni-directional radiating element suitable for use in multi-element antenna arrays.