公开(公告)号：US06949975B2

公开(公告)日：2005-09-27

申请号：US10204235

申请日：2001-01-29

申请人： Steven R. Ring

发明人： Steven R. Ring

IPC分类号： H03F1/32 ,  H03F1/26

CPC分类号： H03F1/3258 ,  H03F1/3247

摘要： The input and output of amplifier (110) are sampled and downconverted in frequency and filtered at (124 and 126) to produce sub-band signals. The input signal sub-band (134) is then subtracted from the output signal sub-band (136) at (130) to produce a residual signal (132) containing any distortion present in the sub-band selected by the downconversion oscillator (128). Signal analyser (158) compares the input and output signal energy to deduce the amount of distortion in the output signal, to provide signals for controlling a distortion reduction mechanism such as a predistorter operating on amplifier (110). Alternatively, the input signal sub-band (134) and the output signal sub-band (136) are Fourier transformed (210 and 212) to produce spectrums which can be analysed to determine the presence of distortion in the output of amplifier (110).

摘要翻译： 放大器（110）的输入和输出被频率采样和下变频，并在（124和126）处滤波以产生子带信号。 然后在（130）从输出信号子带（136）中减去输入信号子带（134），以产生包含由下变频振荡器（128）选择的子带中存在的任何失真的残差信号（132） ）。 信号分析器（158）比较输入和输出信号能量以推导出输出信号中的失真量，以提供用于控制诸如在放大器（110）上工作的预失真器的失真减小机制的信号。 或者，输入信号子带（134）和输出信号子带（136）被傅里叶变换（210和212）以产生可以被分析以确定放大器（110）的输出中的失真的存在的频谱， 。

公开(公告)号：US06943750B2

公开(公告)日：2005-09-13

申请号：US10051141

申请日：2002-01-22

申请人： Ralph L. Brooker ,  Scott H. Walker ,  Charles L Lipkin ,  David H. Johnson

发明人： Ralph L. Brooker ,  Scott H. Walker ,  Charles L Lipkin ,  David H. Johnson

IPC分类号： H01Q3/18 ,  H01Q19/13 ,  H01Q19/19 ,  H01Q19/10 ,  H01Q3/12

CPC分类号： H01Q19/132 ,  H01Q3/18 ,  H01Q19/13 ,  H01Q19/19

摘要： A self-pointing antenna has a reflector, a feed or a sub-reflector and a plurality of support struts coupled between the reflector and the boom arm and supporting the feed or sub-reflector. At least one actuator is operatively coupled with the support struts for adjusting the position of the feed or sub-reflector relative to the reflector so as to selectively adjust either/or both of the beam elevation and azimuth of a main beam axis of the antenna.

摘要翻译： 自定位天线具有反射器，进给或副反射器以及耦合在反射器和悬臂臂之间并支撑进给或副反射器的多个支撑支柱。 至少一个致动器与支撑支杆可操作地联接，用于相对于反射器调节进给或副反射器的位置，以便选择性地调节天线的主波束轴的波束高度和方位角。

公开(公告)号：US06919765B2

公开(公告)日：2005-07-19

申请号：US10646058

申请日：2003-08-22

申请人： Christopher F. Zappala

发明人： Christopher F. Zappala

IPC分类号： H03F1/32 ,  H03F1/26

CPC分类号： H03F1/32 ,  H03F1/3241 ,  H03F1/3282

摘要： A power amplifier's complex pre-distortion curve is generated by decomposing a representation of an input signal, processing the resulting decomposed signals using analog techniques, and performing signal re-composition. In one implementation, two different halves of a transfer function corresponding to the amplitude characteristics of the amplifier are separately modeled and then combined to generate a control signal used to control a voltage-controlled attenuator that attenuates the input signal, while two different halves of a transfer function corresponding to the amplifier's phase characteristics are separately modeled and then combined to generate a different control signal used to control a voltage-controlled phase shifter that adjusts the phase of the input signal. The resulting output signal corresponds to an amplitude-and-phase pre-distorted signal that can be applied to linearize a corresponding (high power) amplifier.

公开(公告)号：US06917346B2

公开(公告)日：2005-07-12

申请号：US10343565

申请日：2002-09-06

申请人： Narian K. Izzat ,  Warren Frederick Hunt ,  Kevin E. Linehan

发明人： Narian K. Izzat ,  Warren Frederick Hunt ,  Kevin E. Linehan

IPC分类号： H01Q1/24 ,  H01Q1/36 ,  H01Q1/38 ,  H01Q5/00 ,  H01Q5/25 ,  H01Q9/40 ,  H01Q11/04 ,  H01Q11/10 ,  H01Q21/06

CPC分类号： H01Q9/40 ,  H01Q1/246 ,  H01Q1/362 ,  H01Q1/38 ,  H01Q5/25 ,  H01Q11/04 ,  H01Q11/105 ,  H01Q21/061

摘要： A base station antenna array comprises a ground plane and a parallel array of antennas above the ground plane. The antennas each have a progression of radiating elements whose length increases in a direction away from the ground plane. A feed is connected to the antenna at a point nearest the ground plane.

摘要翻译： 基站天线阵列包括接地平面和地平面上方平行的天线阵列。 天线各自具有长度在远离接地平面的方向上增加的辐射元件的进展。 馈电在最靠近地平面的点处连接到天线。

公开(公告)号：US20050088230A1

公开(公告)日：2005-04-28

申请号：US10691232

申请日：2003-10-22

申请人： Robert Johnson ,  Ruikang Yang

发明人： Robert Johnson ,  Ruikang Yang

IPC分类号： H03F1/32 ,  H03F1/26

CPC分类号： H03F1/3294 ,  H03F2201/3233

摘要： Current and previous input signal power measures are used to generate a combined index value that is applied to one or more composite look-up tables (e.g., an I LUT and a Q LUT) to retrieve one or more pre-distortion parameters (e.g., I and Q). In one embodiment, a combined index value is generated by concatenating current and previous power measures, where each composite LUT maps all possible combinations of the current and previous power measures to the corresponding pre-distortion parameters values. By using a composite LUT for each of I and Q, the overall signal processing time of the pre-distortion processing can be greatly reduced relative to the prior art, resulting in a significantly smaller RF delay line used to delay the input signal and thereby providing a less costly and more efficient amplifier system.

摘要翻译： 当前和以前的输入信号功率测量用于产生应用于一个或多个复合查询表（例如，I LUT和Q LUT）的组合索引值，以检索一个或多个预失真参数（例如， 我和Q）。 在一个实施例中，通过连接当前和先前的功率测量来产生组合的指标值，其中每个复合LUT将当前和先前功率测量的所有可能组合映射到相应的预失真参数值。 通过使用I和Q中的每一个的复合LUT，可以相对于现有技术大大减少预失真处理的总体信号处理时间，导致用于延迟输入信号的显着较小的RF延迟线，从而提供 一个成本更低，效率更高的放大器系统。

公开(公告)号：US20050035923A1

公开(公告)日：2005-02-17

申请号：US10604756

申请日：2003-08-14

申请人： Junaid Syed ,  Matthew Lewry ,  Graeme Thomson ,  Brian Lawson

发明人： Junaid Syed ,  Matthew Lewry ,  Graeme Thomson ,  Brian Lawson

IPC分类号： H01Q1/42 ,  H01Q19/02

CPC分类号： H01Q1/42 ,  H01Q19/022

摘要： A radome and a reflector antenna configured to mate with the radome. The radome has a central portion and a surrounding outer portion. The central portion having a radius selected to redirect a reflected component of the transmitted RF signal from the radome to the vertex area of the reflector. The outer portion has a larger radius selected to minimize radiation pattern degradation. RF absorbing material located at the vertex area reduces return loss of the reflector antenna. The radome attaches to the reflector via a plurality of tabs formed proximate the periphery of the radome that correspond to a plurality of cut outs in the periphery of the reflector. When inserted and rotated, the radome secures to the reflector without requiring tools.

摘要翻译： 配置为与天线罩配合的天线罩和反射器天线。 天线罩具有中心部分和周围的外部部分。 中心部分具有被选择用于将发射的RF信号的反射分量从天线罩重定向到反射器的顶点区域的半径。 外部部分具有较大的半径，以最小化辐射图形退化。 位于顶点区域的RF吸收材料减少了反射器天线的回波损耗。 天线罩通过靠近雷达罩的周边形成的多个接片连接到反射器，该突出部对应于反射器周边的多个切口。 当插入和旋转时，天线罩固定到反射器，而不需要工具。

公开(公告)号：US20050030130A1

公开(公告)日：2005-02-10

申请号：US10631244

申请日：2003-07-31

申请人： James Alford

发明人： James Alford

IPC分类号： H01P11/00 ,  H01P1/20

CPC分类号： H01P11/007 ,  Y10T29/49002 ,  Y10T29/49005 ,  Y10T29/49007 ,  Y10T29/49117

摘要： A simplified method for forming passive microwave components, such as a filter, and passive microwave components formed by the method. The method includes forming a ceramic insert having a plurality of resonator regions and then die casting an outer casing of a conductive material about the ceramic insert. Each resonator region has a cavity that may be filled with the conductive material used to die cast the outer casing or, alternatively, may be filled with a resonator rod made of different materials than the encapsulating metal.

摘要翻译： 用于形成无源微波部件的简化方法，例如滤波器，以及通过该方法形成的无源微波部件。 该方法包括形成具有多个谐振器区域的陶瓷插入件，然后围绕陶瓷插入件压铸导电材料的外壳。 每个谐振器区域都具有可以用用于压铸外壳的导电材料填充的空腔，或者可以填充由与封装金属不同的材料制成的谐振杆。

公开(公告)号：US20050020129A1

公开(公告)日：2005-01-27

申请号：US10708859

申请日：2004-03-29

申请人： John Dykstra ,  James Wlos ,  Larry Buenz

发明人： John Dykstra ,  James Wlos ,  Larry Buenz

IPC分类号： H01R9/05 ,  H01R13/646 ,  H01R13/62

CPC分类号： H01R9/0521 ,  H01R9/0527 ,  H01R2103/00

摘要： A coaxial connector may be configured with multiple interleaved concentric threads that reduce connector assembly threading requirements. A cable sheath stripping feature may be incorporated into the connector, eliminating the need for a separate sheath stripping tool. Also, over-tightening protection assemblies may be incorporated in the coupling and or rear clamp nuts. The over-tightening protection assemblies utilize first and second interlock surfaces which co-operate to couple the connector body with a rotatable inner coupling sleeve until a predetermined level of torque is applied whereupon complementary protrusions formed on the rings deflect and slip past each other, protecting the connector and or cable from damage due to application of excessive torque and eliminating the need for torque wrenches during connector installation. The first and second interlock surfaces may be formed directly in the coupling nut and inner coupling sleeve or may be separate finger and ramp rings coupled to each.

摘要翻译： 同轴连接器可以被配置为具有减少连接器组件穿线要求的多个交错同心螺纹。 电缆护套剥离特征可以结合到连接器中，而不需要单独的护套剥离工具。 此外，过紧紧保护组件可以结合在联接和/或后夹紧螺母中。 过紧紧保护组件利用第一和第二互锁表面，其配合以将连接器主体与可旋转的内部联接套筒连接，直到施加预定水平的扭矩，由此形成在环上的互补凸起偏转并滑过彼此，保护 连接器和/或电缆由于施加过大扭矩而损坏，并且在连接器安装期间不需要扭矩扳手。 第一和第二互锁表面可以直接形成在联接螺母和内部联接套筒中，或者可以是与每个联接套筒相连接的单独的指状物和斜面环。

公开(公告)号：US20050017828A1

公开(公告)日：2005-01-27

申请号：US10604470

申请日：2003-07-23

申请人： Larry Buenz ,  John Dykstra

发明人： Larry Buenz ,  John Dykstra

IPC分类号： H01R9/05 ,  H01R13/646 ,  H01P1/04

CPC分类号： H01R9/0521 ,  H01R9/0527 ,  H01R2103/00

摘要： A coaxial connector may be configured with multiple interleaved concentric threads that reduce connector assembly threading requirements. A cable sheath stripping feature may be incorporated into the connector, eliminating the need for a separate sheath stripping tool. Also, a pair of internal rings may be added which co-operate to couple the connector body with a rotatable inner coupling sleeve until a predetermined level of torque is applied whereupon complementary protrusions formed on the rings deform and slip past each other, protecting the connector from damage due to application of excessive torque and eliminating the need for torque wrenches during connector installation.

摘要翻译： 同轴连接器可以被配置为具有减少连接器组件穿线要求的多个交错同心螺纹。 电缆护套剥离特征可以结合到连接器中，而不需要单独的护套剥离工具。 此外，可以添加一对内环，其配合以将连接器主体与可旋转内部联接套筒连接，直到施加预定水平的扭矩，由此形成在环上的互补突起变形并滑过彼此，从而保护连接器 由于施加过大扭矩而造成的损坏，并且在连接器安装期间不需要扭矩扳手。

公开(公告)号：US20050007191A1

公开(公告)日：2005-01-13

申请号：US10386291

申请日：2003-03-11

申请人： Peter Kenington ,  Jonathan Rogers ,  John Bishop ,  Antony Smithson

发明人： Peter Kenington ,  Jonathan Rogers ,  John Bishop ,  Antony Smithson

IPC分类号： H03F1/32 ,  H04B7/005 ,  H03G3/20

CPC分类号： H03F1/3258 ,  H03F1/3247 ,  H03F1/3294 ,  H03F2200/102 ,  H04W52/52

摘要： A method of controlling an amplifier, the method comprising a sampling step of using a sampler to obtain digital samples of both an output signal of said amplifier and a reference signal, a derivation step of obtaining from said samples values of a first parameter and associated values of a second parameter, an averaging step of averaging the first parameter values over ranges of the second parameter such that, for each range, an average of the first parameter is obtained by averaging the first parameter values whose associated second parameter values lie in the range, a generation step of generating a control signal for said amplifier from said averages, a suppression step of using said samples of said reference signal to inhibit the effect upon said control signal of errors in the operation of said sampler and a control step of applying the control signal to said amplifier to direct the operation of said amplifier. The invention also relates to apparatus involved in carrying out the method.