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  • 如何优化ISM无线电频率(RF)系统

    Abstract: With industrial/scientific/medical (ISM) band radio frequency (RF) products, often times users are new to the structure of Maxim's low pin-count transmitters andfully integrated superheterodyne receivers. This tutorial provides simple steps that can be taken to get the best performan ...

    /dl/36198.html

    标签: ISM RF 无线电频率

    上传时间: 2013-11-02

    上传用户:yph853211

  • 克服了正交频分复用(OFDM)和IEEE 1901.2智能电网通信的挑战

    Abstract: While many questions still surround the creation and deployment of the smart grid, the need for a reliablecommunications infrastructure is indisputable. Developers of the IEEE 1901.2 standard identified difficult channel conditionscharacteristic of low-frequency powerline communications ...

    /dl/36256.html

    标签: 1901.2 OFDM IEEE 正交频分复用

    上传时间: 2013-10-18

    上传用户:myworkpost

  • 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

  • ZigBee无线传感网络的路由协议研究

     为满足无线网络技术具有低功耗、节点体积小、网络容量大、网络传输可靠等技术要求,设计了一种以MSP430单片机和CC2420射频收发器组成的无线传感节点。通过分析其节点组成,提出了ZigBee技术中的几种网络拓扑形式,并研究了ZigBee路由算法。针对不同的传输要求形式选用不同的网络拓扑形式可以尽大可能地减少系统成本。 ...

    /dl/36488.html

    标签: ZigBee 无线传感网络 协议研究 路由

    上传时间: 2013-10-09

    上传用户:robter

  • UHF读写器设计中的FM0解码技术

       针对UHF读写器设计中,在符合EPC Gen2标准的情况下,对标签返回的高速数据进行正确解码以达到正确读取标签的要求,提出了一种新的在ARM平台下采用边沿捕获统计定时器数判断数据的方法,并对FM0编码进行解码。与传统的使用定时器定时采样高低电平的FM0解码方法相比,该解码方法可以减少定时器定时误差累积的影 ...

    /dl/36490.html

    标签: UHF FM0 读写器 解码技术

    上传时间: 2013-11-10

    上传用户:liufei

  • 差分電路中單端及混合模式S-參數的使用

    Single-Ended and Differential S-Parameters Differential circuits have been important incommunication systems for many years. In the past,differential communication circuits operated at lowfrequencies, where they could be designed andanalyzed using lumped-element models andtechniques. With the freque ...

    /dl/36562.html

    标签: 差分電路 單端 模式

    上传时间: 2014-03-25

    上传用户:yyyyyyyyyy

  • RT9018,RT9018AB-05 datasheet pdf

    The RT9018A/B is a high performance positive voltage regulator designed for use in applications requining very low Input voltage and very low dropout voltage at up to 3A(peak).

    /dl/36576.html

    标签: 9018 datasheet RT

    上传时间: 2013-10-10

    上传用户:geshaowei

  • LPC1850 Cortex-M3内核微控制器数据手册

    The LPC1850/30/20/10 are ARM Cortex-M3 based microcontrollers for embeddedapplications. The ARM Cortex-M3 is a next generation core that offers systemenhancements such as low power consumption, enhanced debug features, and a highlevel of support block integration.The LPC1850/30/20/10 operate at CPU ...

    /dl/36626.html

    标签: Cortex-M 1850 LPC 内核微控制器

    上传时间: 2014-12-31

    上传用户:zhuoying119

  • LPC4300系列ARM双核微控制器产品数据手册

    The LPC4350/30/20/10 are ARM Cortex-M4 based microcontrollers for embeddedapplications. The ARM Cortex-M4 is a next generation core that offers systemenhancements such as low power consumption, enhanced debug features, and a highlevel of support block integration.The LPC4350/30/20/10 operate at CPU ...

    /dl/36630.html

    标签: 4300 LPC ARM 双核微控制器

    上传时间: 2013-10-28

    上传用户:15501536189

  • MAX338/MAX339的英文数据手册

      本软件是关于MAX338, MAX339的英文数据手册:MAX338, MAX339   8通道/双4通道、低泄漏、CMOS模拟多路复用器   The MAX338/MAX339 are monolithic, CMOS analog multiplexers (muxes). The 8-channel MAX338 is designed to connect one of eight inputs to a common output by control of a 3-bit binar ...

    /dl/36708.html

    标签: MAX 338 339 英文

    上传时间: 2013-11-12

    上传用户:18711024007