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  • 智能天线技术在基站中的应用

    为了能够满足基站易于选址、优质快速的建站要求和易维护、低成本、高可靠的运行要求,本文对以方舱来实现一体化结构基站做出一番探讨。从系统设计的观点阐述了移动通信高性能基站天线设计的几个关键问题,介绍了智能天线技术在基站中的应用,并且用HFSS软件仿真了一种新型的对称阵子天线,该天线驻波比小于2的带宽可以达到6 ...

    /dl/36485.html

    标签: 智能天线 基站 中的应用

    上传时间: 2013-11-20

    上传用户:linlin

  • DN492-双单片降压集成温度监控模块

      Multioutput monolithic regulators are easy to use and fi tinto spaces where multichip solutions cannot. Nevertheless,the popularity of multioutput regulators is temperedby a lack of options for input voltages above 30V andsupport of high output currents. The LT3692A fi lls thisgap with a ...

    /dl/36571.html

    标签: 492 DN 降压 温度监控

    上传时间: 2014-01-03

    上传用户:Huge_Brother

  • WP401-FPGA设计的DO-254

    The standard that governs the design of avioniccomponents and systems, DO-254, is one of the mostpoorly understood but widely applicable standardsin the avionic industry. While information on thegeneral aspects of the standard is easy to obtain, thedetails of exactly how to implement the standard ...

    /dl/40071.html

    标签: FPGA 401 254 WP

    上传时间: 2013-11-03

    上传用户:ysystc670

  • allegro cx manual教程

    We would like to welcome you as a user of the Allegro CX, a rugged, handheld fi  eld PC for data collection. Developed with the input of data collection professionals worldwide, the Allegro CX is adaptable and versatile for use in a wide variety of data collection environments. The Allegr ...

    /dl/40217.html

    标签: allegro manual cx 教程

    上传时间: 2015-01-02

    上传用户:zhangyi99104144

  • 确定任务参数的温度记录仪

    Logger iButton devices have gained a lot of popularity with researchers. Although free evaluation software is easy to use and welldocumented, the choices and inputs that need to be made can sometimes be challenging. This application note explains technicalterms that are common with temperature log ...

    /dl/41804.html

    标签: 参数 温度记录仪

    上传时间: 2013-11-16

    上传用户:xywhw1

  • 谈集成电路的通用接口

    Abstract: How can an interface change a happy face to a sad face? Engineers have happy faces when an interface works properly.Sad faces indicate failure somewhere. Because interfaces between microprocessors and ICs are simple—even easy—they are oftenignored until interface failure caus ...

    /dl/42396.html

    标签: 集成电路 通用接口

    上传时间: 2013-11-18

    上传用户:zgz317

  • SL811开发资料_包含源程序_电路图_芯片资料

    SL811开发资料_包含源程序_电路图_芯片资料:SL811HS Embedded USB Host/Slave Controller.The SL811HS is an Embedded USB Host/Slave Controller capable of communicate with either full-speed or low-speed USB peripherals. The SL811HS can interface to devices such as microprocessors, microcontrollers, DSPs, o ...

    /dl/42428.html

    标签: 811 SL 开发资料 源程序

    上传时间: 2013-12-22

    上传用户:a82531317

  • CGAL is a collaborative effort of several sites in Europe and Israel. The goal is to make the most i

    CGAL is a collaborative effort of several sites in Europe and Israel. The goal is to make the most important of the solutions and methods developed in computational geometry available to users in industry and academia in a C++ library. The goal is to provide easy access to useful, reliable geometric ...

    /dl/102387.html

    标签: collaborative several Europe Israel

    上传时间: 2015-01-09

    上传用户:refent

  • RemoteWAP is a Remote Administration Tool for any Operating System that can support the Java Virtual

    RemoteWAP is a Remote Administration Tool for any Operating System that can support the Java Virtual Machine. It has been designed for anyone who wishes to have complete control of there OS anywhere by using a WAP enabled Mobile Phone. RemoteWAP is developed using Java and WML for the client mobile ...

    /dl/111487.html

    标签: Administration RemoteWAP Operating Virtual

    上传时间: 2015-02-01

    上传用户:exxxds

  • 用Java编写的程序

    用Java编写的程序,可以学会如何制作边界,very easy

    /dl/120177.html

    标签: Java 编写 程序

    上传时间: 2014-01-19

    上传用户:youke111