公开(公告)号：EP1335239A1

公开(公告)日：2003-08-13

申请号：EP02290319.9

申请日：2002-02-08

Applicant: MOTOROLA, INC.

Inventor： Labbe, Patrick ,  Patillon, Jean Noel ,  Bateman, David ,  Toussaere, Eric

IPC: G02F1/065 ,  G02F1/035 ,  H04B10/12

CPC classification number: G02F1/065 ,  G02F1/0356 ,  H04B10/25752

Abstract: A detector or a modulator for converting between optical and radio frequency signals comprising an optical guide (11 to 14) for propagating two optical signal components having frequencies that differ by an amount corresponding to a radio frequency and a microstrip radio signal guide (15, 16) for propagating a radio signal at the radio frequency, the microstrip radio signal guide being in travelling-wave coupling with an interaction zone (14) of the optical guide comprising material in which interaction between the optical signal components and the radio signal occurs. The microstrip radio signal guide element (15, 16) comprises an electrically conductive strip (15) juxtaposed with and extending along the interaction zone (14) on one side thereof and an electrically conductive ground plane (16) juxtaposed with and extending along the interaction zone (14) on an opposite side thereof.
Transition radio signal guide elements (20, 21) in the form of Vivaldi antennas extending transversely to the microstrip (15) connect the microstrip radio signal guide element (15, 16) with a rectangular section wave-guide (18) and a matched load. Each of the transition radio signal guide elements (20, 21) comprises an opening of progressively varying width formed in the electrically conductive ground plane of the microstrip guide (16). Radio frequency signal resonators (24 to 27) extend the ends of the microstrip (15) and the small ends of the Vivaldi antennas.

Abstract translation: 一种用于在光学和射频信号之间转换的检测器或调制器，包括用于传播具有与射频相应的频率不同的频率的两个光信号分量的光导（11〜14）和微带无线电信号引导件（15,16 ），用于以射频传播无线电信号，所述微带无线电信号引导件与所述光导体的相互作用区域（14）进行行波耦合，所述相互作用区域包括光信号分量和所述无线电信号之间的相互作用的材料。 微带无线电信号引导元件（15,16）包括一个导电条（15），该导电条（15）在其一侧上与相互作用区（14）并置并延伸，并且导电接地平面（16）与该相互作用并置并延伸 区域（14）。 以横向于微带线（15）延伸的维瓦第尔天线形式的过渡无线电信号引导元件（20,21）将微带无线电信号引导元件（15,16）与矩形波导管（18）和匹配负载 。 每个过渡无线电信号引导元件（20,21）包括在微带引导件（16）的导电接地平面中形成的逐渐变化的宽度的开口。 射频信号谐振器（24至27）延伸微带（15）的端部和维瓦第天线的小端。

公开(公告)号：EP1317107A1

公开(公告)日：2003-06-04

申请号：EP01403082.9

申请日：2001-11-30

Applicant: MOTOROLA, INC.

Inventor： Bateman, David ,  Simoens, Sebastien ,  de Courville, Marc

IPC: H04L27/26 ,  H03G3/20

CPC classification number: H04L25/03159 ,  H04L2025/03414

Abstract: In an orthogonal frequency division multiplex communication system, for example a HIPERLAN/2 system, power amplifiers (224) of mobile terminals (4, 6) are switched off when not in use, and then switched on again when a signal transmission is to be made. This conserves power, but introduces a power amplifier transient (315). An access point (2), i.e. a type of base station, compensates for these power amplifier transients (315) using a simple scalar constant gain transient correction, over a full OFDM symbol (or a plurality of OFDM symbols). The correction is updated on an OFDM symbol by symbol basis (or plurality of symbols by plurality of symbols basis).

Abstract translation: 在正交频分复用通信系统中，例如HIPERLAN / 2系统，移动终端（4,6）的功率放大器（224）在不使用时被关闭，然后当信号传输将被再次接通时 制作。 这节省了功耗，但引入了功率放大器瞬态（315）。 接入点（2），即一种基站，使用简单的标量常数增益瞬态校正，在完整的OFDM符号（或多个OFDM符号）上补偿这些功率放大器瞬变（315）。 在OFDM符号的基础上（或多个符号的多个符号的基础上）更新校正。