When I started writing the first edition of RF Power Amplifiers for Wireless Communications,some time back in 1997, it seemed that I was roaming a largely uninhabitedlandscape. For reasons still not clear to me there were few, if any, otherbooks dedicated to the subject of RF power amplifiers. Right at the same time, however,hundreds of engineers were being assigned projects to design PAs for wirelesscommunications products. It was not, therefore, especially difficult to be successfulwith a book that was fortuitously at the right place and the right time.
標(biāo)簽： Communications Amplifiers Wireless Edition
上傳時(shí)間： 2013-11-12
上傳用戶(hù)：YYRR
RF circuit design theory and application(射頻電路設(shè)計(jì))
標(biāo)簽： application circuit design theory
上傳時(shí)間： 2014-12-30
上傳用戶(hù)：aeiouetla
針對(duì)目前大棚溫度監(jiān)測(cè)的現(xiàn)狀，設(shè)計(jì)了一種基于ZigBee的溫度監(jiān)測(cè)系統(tǒng)。以ATmega16單片機(jī)和SZ02構(gòu)成協(xié)調(diào)器節(jié)點(diǎn)，SZ07作為終端節(jié)點(diǎn)，選用AD590作為終端節(jié)點(diǎn)的溫度傳感器，構(gòu)建ZigBee網(wǎng)絡(luò)實(shí)現(xiàn)大棚溫度的采集與傳輸。實(shí)驗(yàn)表明，系統(tǒng)穩(wěn)定，傳輸數(shù)據(jù)準(zhǔn)確可靠，有較好的應(yīng)用價(jià)值。
標(biāo)簽： ZigBee 無(wú)線溫度 監(jiān)測(cè)系統(tǒng)
上傳時(shí)間： 2013-11-09
上傳用戶(hù)：18707733937
zigbee 入門(mén)經(jīng)典教材 資料清晰 無(wú)水印 深入淺出 應(yīng)用實(shí)例多
標(biāo)簽： Networking Wireless ZigBee
上傳時(shí)間： 2014-12-30
上傳用戶(hù)：sdlqbbla
本系統(tǒng)采用CC2530芯片為核心配置，以溫濕度傳感器SHT75、計(jì)算機(jī)監(jiān)控系統(tǒng)等部件，通過(guò)單片機(jī)與智能傳感器相連，采集并存儲(chǔ)智能傳感器的測(cè)量數(shù)據(jù)，并通過(guò)RS485總線來(lái)實(shí)現(xiàn)PC上位機(jī)與單片機(jī)控制模塊半雙工串行通信。基于ZigBee技術(shù)設(shè)計(jì)的智能溫濕度采集系統(tǒng)，可全天候?qū)崟r(shí)監(jiān)控溫室內(nèi)的空氣溫度和濕度信息，具有實(shí)時(shí)性高、低功耗、有效范圍大、成本低、可靠性高等特點(diǎn)。
標(biāo)簽： Zigbee 溫濕度采集 系統(tǒng)設(shè)計(jì)
上傳時(shí)間： 2013-10-11
上傳用戶(hù)：wxnumen
結(jié)合熱軋企業(yè)傳統(tǒng)的能源管理系統(tǒng)的實(shí)際情況，系統(tǒng)利用ZigBee無(wú)線通信技術(shù)，實(shí)現(xiàn)對(duì)熱軋企業(yè)的能源網(wǎng)絡(luò)化抄表。文章介紹了能源管理系統(tǒng)整體方案設(shè)計(jì)，詳細(xì)描述了數(shù)據(jù)中心的建立方法。實(shí)際運(yùn)行結(jié)果表明，該系統(tǒng)工作性能穩(wěn)定，在數(shù)據(jù)采集、傳輸、處理等方面均達(dá)到了設(shè)計(jì)要求，滿(mǎn)足了熱軋企業(yè)的需要。
標(biāo)簽： ZigBee 企業(yè)能源 管理系統(tǒng)
上傳時(shí)間： 2013-11-19
上傳用戶(hù)：狗日的日子
Linear Technology offers some of the highest performance RF and signal chain solutions for wireless and cellularinfrastructure. These products support worldwide standards including, LTE, WiMAX, GSM,W-CDMA, TD-SCDMA,CDMA, and CDMA2000. Other wireless systems include broadband microwave data links, secure communications,satellite receivers, broadband wireless access, wireless broadcast systems, RFID readers and cable infrastructure
上傳時(shí)間： 2013-11-04
上傳用戶(hù)：kiklkook
根據(jù)一些環(huán)境溫度濕度實(shí)時(shí)監(jiān)測(cè)的需要，采用首個(gè)符合Zigbee標(biāo)準(zhǔn)的CC2430射頻芯片，以SHT10為溫濕度傳感器來(lái)設(shè)計(jì)實(shí)現(xiàn)溫度濕度的數(shù)據(jù)采集與傳輸。利用TI公司的Z-Stack協(xié)議棧在IAR開(kāi)發(fā)環(huán)境下，建立一個(gè)無(wú)線傳感器網(wǎng)絡(luò)。網(wǎng)絡(luò)協(xié)調(diào)器通過(guò)RS232串口與PC通信，實(shí)現(xiàn)對(duì)溫度濕度的無(wú)線智能監(jiān)測(cè)
標(biāo)簽： Zigbee 溫度 濕度 監(jiān)測(cè)系統(tǒng)
上傳時(shí)間： 2013-11-05
上傳用戶(hù)：liaofamous
本技術(shù)文章將介紹如何運(yùn)用 NI LabVIEW FPGA 來(lái)設(shè)計(jì)並客製化個(gè)人的 RF 儀器，同時(shí)探索軟體設(shè)計(jì)儀器可為測(cè)試系統(tǒng)所提供的優(yōu)勢(shì)。
上傳時(shí)間： 2013-11-24
上傳用戶(hù)：toyoad
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 performance out of these transmitters and receivers whileproviding techniques to measure the overall capability of the design.
上傳時(shí)間： 2013-11-02
上傳用戶(hù)：yph853211
蟲(chóng)蟲(chóng)下載站版權(quán)所有 京ICP備2021023401號(hào)-1
