公开(公告)号：US20070109046A1

公开(公告)日：2007-05-17

申请号：US10562133

申请日：2004-06-25

申请人： David Duperray

发明人： David Duperray

IPC分类号： H03F1/26

CPC分类号： H03G3/3042 ,  H03F1/02 ,  H03F1/0272 ,  H03F1/32 ,  H03F2200/294 ,  H03F2200/372

摘要： The present invention generally speaking, provides for adaptive control of an RF power amplifier in view of a desired data rate. For low data rates, the RF amplifier (121) is controlled so as to allow significant output signal distortion, at the same time operating within a region of increased efficiency of the RF power amplifier. For higher data rates, the RF amplifier (121) is controlled so as to reduce the output signal distortion. During such times, lower efficiency of the RF power amplifier is attained. Efficiency of the RF power amplifier (121) is thus maximized in view of data rate requirements. In the case of battery-powered radio transmitter, increased efficiency results in longer battery life. In a specific embodiment, an on-the-fly calibration is performed in which output signal distortion is measured. A precalculated table stores information relating output signal distortion to expected Error Vector Magnitude (EVM) at the radio receiver.

摘要翻译： 本发明总体而言，考虑到期望的数据速率，提供对RF功率放大器的自适应控制。 对于低数据速率，RF放大器（121）被控制以允许显着的输出信号失真，同时在RF功率放大器的增加的效率的区域内操作。 为了获得更高的数据速率，RF放大器（121）被控制以便减小输出信号失真。 在这样的时间，RF功率放大器效率较低。 鉴于数据速率要求，RF功率放大器（121）的效率因此最大化。 在使用电池供电的无线电发射机的情况下，提高效率可延长电池寿命。 在具体实施例中，执行其中测量输出信号失真的动态校准。 预先计算的表将有关输出信号失真的信息存储在无线电接收机处的预期误差矢量幅度（EVM）。

公开(公告)号：US20080233893A1

公开(公告)日：2008-09-25

申请号：US11997197

申请日：2006-07-28

申请人： David Duperray

发明人： David Duperray

IPC分类号： H04B1/40

CPC分类号： H04B1/40 ,  H04B17/21

摘要： The present wireless transceiver includes a tuneable narrow band LNA which rejects dramatically any out of band interferers. The tuneable narrow band LNA may be operable over a wide frequency band. A loopback calibration procedure is used to control the tuneable narrow band LNA so as to produce a substantially flat gain characteristic over the band of interest.

摘要翻译： 本无线收发器包括可调节窄带LNA，其显着地拒绝任何带外干扰。 可调谐窄带LNA可以在宽频带上操作。 使用环回校准程序来控制可调窄带LNA，以便在感兴趣的频带上产生基本平坦的增益特性。

公开(公告)号：US06507244B2

公开(公告)日：2003-01-14

申请号：US09866906

申请日：2001-05-29

申请人： David Duperray

发明人： David Duperray

IPC分类号： H03G320

CPC分类号： H03F1/0261

摘要： A transmitter has a power amplifier amplifying a radio frequency transmit signal. The radio frequency transmit signal is a non-constant envelope modulated signal. The power amplifier has a first compression point. In a method for sliding a compression point in the transmitter, the power amplifier is operated at a first backoff from the first compression point such that a given adjacent channel power ratio requirement is met for a first peak-to-average ratio of the radio frequency transmit signal. The first compression point is slide to a second compression point for a second peak-to-average ratio of the radio frequency transmit signal, the second compression point being lower than the first compression point. The first and second peak-to-average ratios are dependent on information content of the non-constant envelope modulated signal.

摘要翻译： 发射机具有放大射频发射信号的功率放大器。 射频发射信号是非恒定包络调制信号。 功率放大器具有第一压缩点。 在用于在发射机中滑动压缩点的方法中，功率放大器以第一压缩点的第一退避运行，使得对于射频的第一峰均比，满足给定的相邻信道功率比要求 发送信号。 第一压缩点被滑动到第二压缩点，用于射频发射信号的第二峰均比，第二压缩点低于第一压缩点。 第一和第二峰均比取决于非恒定包络调制信号的信息内容。

公开(公告)号：US08918060B2

公开(公告)日：2014-12-23

申请号：US13248106

申请日：2011-09-29

申请人： David Duperray

发明人： David Duperray

IPC分类号： H04B17/00

CPC分类号： H04B17/0027 ,  H04B17/17 ,  H04B17/19

摘要： In a mobile communication device a loopback technique is used to enable the receive chain circuitry and digital baseband block to perform self tests on the transmit chain circuitry of the same mobile communication device for 2G and 2.5G operating Bands and channels. A transmit chain circuit is set to transmit a selected receive Band channel, which is attenuated via a loopback path within the mobile communication device's front end module and, in some embodiments, via a leakage signal path between adjacent or proximate LNA inputs of separate receive chain circuits.

摘要翻译： 在移动通信设备中，使用环回技术使得接收链电路和数字基带块能够在用于2G和2.5G操作频带和信道的同一移动通信设备的发射链电路上执行自检。 传输链路电路被设置为发送所选择的接收频带信道，其经由移动通信设备的前端模块内的环回路径被衰减，并且在一些实施例中经由在分离的接收链路的相邻或接近的LNA输入之间的泄漏信号路径 电路。

公开(公告)号：US20130084852A1

公开(公告)日：2013-04-04

申请号：US13248106

申请日：2011-09-29

申请人： David DUPERRAY

发明人： David DUPERRAY

IPC分类号： H04W24/00

CPC分类号： H04B17/0027 ,  H04B17/17 ,  H04B17/19

摘要： In a mobile communication device a loopback technique is used to enable the receive chain circuitry and digital baseband block to perform self tests on the transmit chain circuitry of the same mobile communication device for 2G and 2.5G operating Bands and channels. A transmit chain circuit is set to transmit a selected receive Band channel, which is attenuated via a loopback path within the mobile communication device's front end module and, in some embodiments, via a leakage signal path between adjacent or proximate LNA inputs of separate receive chain circuits.

摘要翻译： 在移动通信设备中，使用环回技术使得接收链电路和数字基带块能够在用于2G和2.5G操作频带和信道的同一移动通信设备的发射链电路上执行自检。 传输链路电路被设置为发送所选择的接收频带信道，其经由移动通信设备的前端模块内的环回路径被衰减，并且在一些实施例中经由在分离的接收链路的相邻或接近的LNA输入之间的泄漏信号路径 电路。

公开(公告)号：US5900839A

公开(公告)日：1999-05-04

申请号：US927887

申请日：1997-09-11

申请人： David Duperray

发明人： David Duperray

IPC分类号： H01Q1/10 ,  H01Q1/24 ,  H01Q11/08

CPC分类号： H01Q1/244 ,  H01Q1/24

摘要： A radio communication apparatus is disclosed having a transceiver which receives and transmits signals; an excitation link which is connected to the transceiver; and a rod antenna which is electrically connected at a first tip to the excitation link in an extended position and electrically disconnected from the excitation link in a retracted position. A first coil is located around the rod antenna in a housing, where the first coil has a first end connected to the excitation link. Further, a conducting ring is located over the housing, where the conducting ring contacts a second end of the first coil. An insulating element is located at a second tip of the rod antenna, and a conductive plate is located over the insulating element. The conductive plate is perpendicular to the rod antenna and is parallel to the conducting ring. In addition, a second coil is connected to the conducting plate, where the conducting plate contacts the conducting ring in the retracted position of the rod antenna to connect the two coils in series and form a coil having a length which equals the sum of the lengths of the two coils.

摘要翻译： 公开了一种具有接收和发送信号的收发器的无线电通信装置; 连接到收发器的激励链路; 以及杆状天线，其在第一尖端处电连接到激励连杆处于延伸位置并且在缩回位置与激励连杆电气断开。 第一线圈位于壳体内的杆状天线周围，其中第一线圈具有连接到激励连杆的第一端。 此外，导电环位于壳体上方，其中导电环接触第一线圈的第二端。 绝缘元件位于杆状天线的第二尖端处，导电板位于绝缘元件上方。 导电板垂直于棒状天线并平行于导电环。 此外，第二线圈连接到导电板，其中导电板在杆状天线的缩回位置接触导电环，以串联连接两个线圈，并形成线圈，其长度等于长度的总和 的两个线圈。

公开(公告)号：US07786806B2

公开(公告)日：2010-08-31

申请号：US11575065

申请日：2005-09-08

申请人： David Duperray

发明人： David Duperray

IPC分类号： H03F3/04

CPC分类号： H03F3/191 ,  H03F1/22 ,  H03F2200/294 ,  H03F2200/372

摘要： A cascode LNA circuit is provided with a tuned inductive load. The circuit shows a flat response over a wide frequency range.

摘要翻译： 级联LNA电路具有调谐感性负载。 该电路在宽频率范围内显示平坦的响应。

公开(公告)号：US20080012643A1

公开(公告)日：2008-01-17

申请号：US11575065

申请日：2005-09-08

申请人： David Duperray

发明人： David Duperray

IPC分类号： H03G3/00

CPC分类号： H03F3/191 ,  H03F1/22 ,  H03F2200/294 ,  H03F2200/372

摘要： A cascode LNA circuit is provided with a tuned inductive load. The circuit shows a flat response over a wide frequency range.

摘要翻译： 级联LNA电路具有调谐感性负载。 该电路在宽频率范围内显示平坦的响应。

公开(公告)号：US06850785B1

公开(公告)日：2005-02-01

申请号：US09286027

申请日：1999-04-05

申请人： Lukas Leyten ,  Peter J. Massey ,  David Duperray ,  Steven J. W. Van Lerberghe ,  Cyrille M. J. M. Amar

发明人： Lukas Leyten ,  Peter J. Massey ,  David Duperray ,  Steven J. W. Van Lerberghe ,  Cyrille M. J. M. Amar

IPC分类号： H01Q1/24 ,  H01Q3/26 ,  H04B1/38 ,  H04B1/10

CPC分类号： H01Q1/245 ,  H01Q1/242 ,  H01Q3/2623

摘要： A portable communication device has an antenna configuration that allows to form various different antenna directivity configurations. In particular, a control device discriminates between a transmitting state and a receiving state of the communication device. As based thereon, it effects various non-uniform selection patterns among the directivity configurations.

摘要翻译： 便携式通信设备具有允许形成各种不同的天线方向性配置的天线配置。 具体地，控制装置识别通信装置的发送状态和接收状态。 基于此，它影响方向性配置之间的各种不均匀的选择模式。