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1. 发明公开

EP2556559A4 REDUCED SIZE CAVITY FILTERS FOR PICO BASE STATIONS 审中-公开
标题翻译：尺寸缩小FOR微微基站腔体滤波器
公开(公告)号：EP2556559A4
公开(公告)日：2014-07-09
申请号：EP11766533
申请日：2011-04-01
申请人： POWERWAVE TECHNOLOGIES INC
发明人： SUBEDI PURNA C
IPC分类号： H01P1/20 , H01P1/202 , H01P1/205 , H01P1/208 , H01P7/04
CPC分类号： H01P1/2136 , H01P1/2053 , H01P1/208 , H01P1/2133 , H01P7/04
摘要： An improved microwave cavity filter used in cellular communication systems such as base stations is disclosed. The cavity filter has a conductive housing forming a cavity therein and a hollow conductive resonator configured in the cavity with a folded hat shaped upper portion. A tuning screw extends from the top cover of the housing into the top folded hat portion of the hollow resonator to fine tune the resonator. The resonator also may preferably include two different diameter sections providing a first high impedance section with smaller diameter and a second lower impedance section with a larger diameter configured at an upper end of the resonator. This configuration provides a significantly smaller cavity height for a given power handling capability. The resonator is preferably of constant thickness allowing low cost stamping or other forming techniques to be used in forming the resonator.

2. 发明公开

EP2158711A4 ON FREQUENCY REPEATER WITH AGC STABILITY DETERMINATION 有权转让
标题翻译：具有AGC稳定判断SAME高频放大器
公开(公告)号：EP2158711A4
公开(公告)日：2014-06-11
申请号：EP08767833
申请日：2008-05-20
申请人： POWERWAVE TECHNOLOGIES INC
发明人： MASLENNIKOV NIKOLAI , RABINOVICH ALEXANDER , ARBAB EZMARAI
IPC分类号： H04B7/155 , H04K3/00
CPC分类号： H04B7/15578
摘要： An on frequency repeater for wireless networks with feedback oscillation detection is disclosed. The on frequency repeater includes an automatic gain control loop which samples amplified signal envelope. The automatic gain control loop is monitored and a characteristic saw tooth pattern in the gain control loop indicating feedback oscillation is detected. A nonlinear gain expander circuit may be periodically activated to allow feedback oscillation detection in repeater applications employing linearized amplifiers.

3. 发明公开

EP2011246A4 SYSTEM AND METHOD FOR ESTIMATION AND COMPENSATION OF RADIATED FEEDBACK COUPLING IN A HIGH GAIN REPEATER 审中-公开
标题翻译：系统及方法高的利润BOOSTER确定和辐射反馈补偿
公开(公告)号：EP2011246A4
公开(公告)日：2014-05-21
申请号：EP07775931
申请日：2007-04-20
申请人： POWERWAVE TECHNOLOGIES INC
发明人： BRAITHWAITE RICHARD NEIL
IPC分类号： H04B7/15
CPC分类号： H04B7/15578

4. 发明授权

EP1756940B1 SYSTEM AND METHOD FOR CONTROL OF LOOP ALIGNMENT IN ADAPTIVE FEED FORWARD AMPLIFIERS 有权
标题翻译：系统和方法，用于控制自适应前向耦合放大器循环对齐
公开(公告)号：EP1756940B1
公开(公告)日：2013-12-18
申请号：EP05713403.3
申请日：2005-02-14
申请人： Powerwave Technologies, Inc.
发明人： BRAITHWAITE, Richard, Neil
IPC分类号： H03F1/00 , H03F1/32
CPC分类号： H03F1/3235
摘要： A fast search algorithm for loop alignment of a feed forward amplifier is disclosed. The algorithm controls a processor that adjusts, digitally, the gain and phase of the loop alignment based on power measurements at the input and output of cancellation combiners, to find the optimal setting. A "non-collinear descent" algorithm is used to search, iteratively, for the minimum within an error surface. For loop alignment, the error surface is defined by the set of measurement points comprising the alignment settings and the associated cancellation residuals. For the case of first loop alignment, the cancellation residual is measured using the ratio of two power detectors located at the input and after the cancellation (error) combiner. For second loop alignment, cancellation is estimated using the residual pilot power detected at the output of the amplifier. The preferred alignment method uses three successive measurements to estimate the gradient direction with respect to gain and phase shifter settings. The actual descent direction is selected to be close to the gradient direction without being collinear with the most recent alignment adjustments. Quantization of the descent direction simplifies the implementation as well as the enforcement of the non-collinearity constraint on successive alignment settings. Two different step size selection approaches are disclosed, however, any standard step size selection approach may be employed.

5. 发明公开

EP1929846A4 SYSTEM AND METHOD FOR SHIELDED COAXIAL CABLE ATTACHMENT 有权
标题翻译：系统在VERFAHREN ZUR ABGESCHIRMTEN KOAXIALKABEL-ANBRINGUNG
公开(公告)号：EP1929846A4
公开(公告)日：2013-08-14
申请号：EP06790120
申请日：2006-08-31
申请人： POWERWAVE TECHNOLOGIES INC
发明人： PRICE RUSSELL
IPC分类号： H01R9/05 , H01R12/00 , H01R24/50 , H01R103/00 , H05K1/02 , H05K3/32 , H05K3/34 , H05K9/00
CPC分类号： H01R24/50 , H01R9/0515 , H01R12/515 , H01R2103/00 , H05K1/0243 , H05K3/325 , H05K3/3405 , H05K9/0018

6. 发明公开

EP2541676A2 Forty-five degree dual broad band base station antenna 审中-公开
标题翻译： DualeFünfundvierzig-Grad-Breitband-Basisstationsantenne
公开(公告)号：EP2541676A2
公开(公告)日：2013-01-02
申请号：EP12173565.8
申请日：2012-06-26
申请人： Powerwave Technologies, Inc.
发明人： Teillet, Anthony , Kan, Hing
IPC分类号： H01Q1/24 , H01Q5/00 , H01Q19/10 , H01Q21/06
CPC分类号： H01Q1/246 , H01Q5/42 , H01Q19/104 , H01Q21/061
摘要： The present invention relates to a multiband antenna specifically adapted for use with a Base Station Antenna ("BSA"). The present invention provides narrow azimuth or horizontal beamwidth ("HBW") having 45 degrees and operational over four frequency bands. The composite antenna topology and associated circuitry described in embodiments achieves reduced antenna installation requirements and allows for ease of network deployment or reconfiguration at reduced cost. Embodiments employ an array of low band radiating elements and two sets of high band radiating elements. The first set is co-located within an array of low band radiating elements. The second set of is offset and outside the low band radiating elements. An RF feed network energizes the first and second set of high band radiating elements to compensate for interference between the high and low band elements.
摘要翻译：本发明涉及一种专用于与基站天线（“BSA”）一起使用的多频带天线。本发明提供具有45度并且在四个频带上操作的窄方位角或水平波束宽度（“HBW”）。实施例中描述的复合天线拓扑和相关电路实现了降低的天线安装要求，并且允许以更低的成本容易地进行网络部署或重新配置。实施例采用低频辐射元件阵列和两组高频带辐射元件。第一组位于低频辐射元件阵列内。第二组偏移并在低频辐射元件之外。 RF馈电网络激励第一和第二组高频辐射元件以补偿高频带元件和低频带元件之间的干扰。

7. 发明授权

EP1867120B1 FEED FORWARD AMPLIFIER SYSTEM AND METHOD USING THE PILOT FREQUENCY FROM A POSITIVE FEEDBACK PILOT GENERATION AND DETECTION CIRCUIT TO IMPROVE SECOND LOOP CONVERGENCE 有权
标题翻译： FORWARD和功放系统和方法中使用的导频受到来自导频信号生成具有用于改善两个整理收敛积极的反馈和检测电路
公开(公告)号：EP1867120B1
公开(公告)日：2012-03-14
申请号：EP06758256.9
申请日：2006-04-03
申请人： Powerwave Technologies, Inc.
发明人： BRAITHWAITE, Richard, Neil
IPC分类号： H03F1/00
CPC分类号： H03F1/3235 , H03F1/3241 , H03F2200/198 , H03F2201/3212 , H03F2201/3215
摘要： A pilot system and method is disclosed that increases the rate of convergence of the second loop alignment control in a feed forward amplifier. Both a pilot generation and detection system and search algorithm controlling the alignment are disclosed. By measuring the frequency of the generated pilot, phase information regarding the second loop cancellation transfer function can be inferred. Changes in the pilot frequency as the search algorithm makes steps in the second loop alignment indicate errors in the direction of the search. Using this pilot frequency measurement along with the existing log-power measurement of the residual pilot power improves the convergence speed because fewer steps will be made to reach the optimal alignment setting.

8. 发明公开

EP1849207A4 DUAL MODE CERAMIC FILTER 审中-公开
标题翻译：两种模式陶瓷过滤机
公开(公告)号：EP1849207A4
公开(公告)日：2012-01-04
申请号：EP06720451
申请日：2006-02-08
申请人： POWERWAVE TECHNOLOGIES INC
发明人： ANDREASSON KRISTER , POSHMAN GORAN
IPC分类号： H01P1/20 , H01P1/208 , H01P7/10
CPC分类号： H01P7/105 , H01P1/2086

9. 发明公开

EP2232632A4 LINEAR ANTENNA ARRAY WITH AZIMUTH BEAM AUGMENTATION BY AXIAL ROTATION 有权
标题翻译： LINEARANTENNGRUPPE与方位波束补充由轴向旋转
公开(公告)号：EP2232632A4
公开(公告)日：2011-11-09
申请号：EP08853735
申请日：2008-11-25
申请人： POWERWAVE TECHNOLOGIES INC
发明人： FOO SENGLEE
IPC分类号： H01Q3/06 , H01Q1/24 , H01Q21/08
CPC分类号： H01Q1/246 , H01Q3/06 , H01Q21/08

10. 发明公开

EP2335365A1 CREST FACTOR REDUCTION FOR OFDM COMMUNICATIONS SYSTEMS BY TRANSMITTING PHASE SHIFTED RESOURCE BLOCKS 审中-公开
标题翻译：波峰因子抑制用于OFDM通信的系统BY传输阶段悬浮积木资源
公开(公告)号：EP2335365A1
公开(公告)日：2011-06-22
申请号：EP09819998.7
申请日：2009-10-09
申请人： Powerwave Technologies, Inc.
发明人： BRAITHWAITE, Richard, Neil
IPC分类号： H04J11/00
CPC分类号： H04L27/2621
摘要： In the disclosed system and method phase (and optionally amplitude) shifts are applied at an OFDM transmitter to resource blocks within a given slot to implement Crest Factor Reduction (CFR), The phase shifts may differ between resource blocks and are selected to reduce the peaks in the OFDM waveform. The resource block phase shifts do not affect the demodulation process when the equalization at the receiver is performed on individual blocks separately. As a result, the crest factor reduction is achieved without increasing the EVM or BER in the received signal. In addition, a computational efficient algorithm for determining the resource block phase shifts needed for CFR is disclosed.

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