调制器

The analysis and design of a vector modulator based on the novel microstrip directional coupler are presented.

本文介绍了一种基于新型微带定向耦合器的宽带矢量调制器。

In this dissertation, the optical implementations of integrated bypass-exchange switches and interconnection networks are investigated as the followings:(1) An electro-optic bypass-exchange switch integrated in a single substrate of birefringent crystal is proposed, which is polarization based, and consists of two beam splitters based on the phenomena of double refraction and inner double reflection and in-between an electro-optic modulator based on the electro-optic effect of crystal.

鉴于此，本论文从网络集成包装的角度出发，研究bypass-exchange开关和互连网络的光学实现，主要内容包括：(1)利用单轴晶体的双折射双反射原理和晶体的电光效应，设计了一种新颖的单块晶体集成的电光偏振控制型bypass-exchange光开关，将一个电光偏振控制型bypass-exchange光开关所必需的器件（两个光束分束器和一个电光调制器）集成在一块晶体上。

Temperature measurement ; temperature measurement accuracy ; pyroelectric detector ; mechanical modulating disk ; liquid crystal valve

温度测量；测温精度；热释电；机械调制盘；液晶调制器

The modulator (25) may also include an offset circuit (24) so that the modulated waveform includes a carrier frequency indicator.

所述调制器(25)还可以包括偏置电路(24)，使得调制波形包括载频指示符。

The dissertation focuses on the study of phase-only modulations of liquid crystal spatial light modulators and their applications.

本论文主要研究液晶空间光调制器的纯相位调制和它们的应用。

Liquid crystal spatial light modulators are important components in the processing of optical information.

液晶空间光调制器是光信息处理中的重要元件，利用它的振幅和位相调制特性可以实现各种光学变换和信息处理。

The fast axis of the quarter-wave plate is parallel to the dynamically induced birefringent axis of the photoelastic modulator.

被测1/4波片的快轴与光弹调制器的振动轴平行，且与起偏器和检偏器的透光轴分别成±45°夹角。

The key technologies of novel photoelectron elements to support RoF are optical generations and receivers technologies for millimeter wave subcarrier, including external modulator method, radio frequency up-conversion method, self-heterodyne method, generator of optical pulse self-modulation, and so on.

近年来，支撑RoF技术的新型光电子器件的关键技术有毫米波副载波光学产生技术和接收技术，其中包括外调制器方法、射频上转换法、光学外差法、毫米波调制光脉冲发生器等等。

Features are: small loss of luminous energy, simple structure, and small size.

这种激光接收及回波装置具有光能量损耗小、结构简单、体积小等特点；同时它能够提高信噪比，增大通信和识别距离；另外，这种激光接收及回波装置由于采用了布拉格声光调制器，从而具有更好的调制效果。

The effects of Mach-Zehnder Modulator bias-drifting and chirp on the single sideband radio over fiber link were investigated and simulated.

分析了光纤无线通信系统中的马赫-曾德尔调制器偏置漂移和啁啾效应，计算了单边带调制RoF链路输出目标谐波的功率抖动和谐波抑制比。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。