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.
標簽: Communications Amplifiers Wireless Edition
上傳時間: 2013-11-12
上傳用戶:YYRR
RF circuit design theory and application(射頻電路設計)
標簽: application circuit design theory
上傳時間: 2014-12-30
上傳用戶:aeiouetla
針對目前大棚溫度監(jiān)測的現(xiàn)狀,設計了一種基于ZigBee的溫度監(jiān)測系統(tǒng)。以ATmega16單片機和SZ02構成協(xié)調(diào)器節(jié)點,SZ07作為終端節(jié)點,選用AD590作為終端節(jié)點的溫度傳感器,構建ZigBee網(wǎng)絡實現(xiàn)大棚溫度的采集與傳輸。實驗表明,系統(tǒng)穩(wěn)定,傳輸數(shù)據(jù)準確可靠,有較好的應用價值。
標簽: ZigBee 無線溫度 監(jiān)測系統(tǒng)
上傳時間: 2013-11-09
上傳用戶:18707733937
zigbee 入門經(jīng)典教材 資料清晰 無水印 深入淺出 應用實例多
標簽: Networking Wireless ZigBee
上傳時間: 2014-12-30
上傳用戶:sdlqbbla
本系統(tǒng)采用CC2530芯片為核心配置,以溫濕度傳感器SHT75、計算機監(jiān)控系統(tǒng)等部件,通過單片機與智能傳感器相連,采集并存儲智能傳感器的測量數(shù)據(jù),并通過RS485總線來實現(xiàn)PC上位機與單片機控制模塊半雙工串行通信。基于ZigBee技術設計的智能溫濕度采集系統(tǒng),可全天候?qū)崟r監(jiān)控溫室內(nèi)的空氣溫度和濕度信息,具有實時性高、低功耗、有效范圍大、成本低、可靠性高等特點。
標簽: Zigbee 溫濕度采集 系統(tǒng)設計
上傳時間: 2013-10-11
上傳用戶:wxnumen
結合熱軋企業(yè)傳統(tǒng)的能源管理系統(tǒng)的實際情況,系統(tǒng)利用ZigBee無線通信技術,實現(xiàn)對熱軋企業(yè)的能源網(wǎng)絡化抄表。文章介紹了能源管理系統(tǒng)整體方案設計,詳細描述了數(shù)據(jù)中心的建立方法。實際運行結果表明,該系統(tǒng)工作性能穩(wěn)定,在數(shù)據(jù)采集、傳輸、處理等方面均達到了設計要求,滿足了熱軋企業(yè)的需要。
標簽: ZigBee 企業(yè)能源 管理系統(tǒng)
上傳時間: 2013-11-19
上傳用戶: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
上傳時間: 2013-11-04
上傳用戶:kiklkook
根據(jù)一些環(huán)境溫度濕度實時監(jiān)測的需要,采用首個符合Zigbee標準的CC2430射頻芯片,以SHT10為溫濕度傳感器來設計實現(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開發(fā)環(huán)境下,建立一個無線傳感器網(wǎng)絡。網(wǎng)絡協(xié)調(diào)器通過RS232串口與PC通信,實現(xiàn)對溫度濕度的無線智能監(jiān)測
標簽: Zigbee 溫度 濕度 監(jiān)測系統(tǒng)
上傳時間: 2013-11-05
上傳用戶:liaofamous
本技術文章將介紹如何運用 NI LabVIEW FPGA 來設計並客製化個人的 RF 儀器,同時探索軟體設計儀器可為測試系統(tǒng)所提供的優(yōu)勢。
上傳時間: 2013-11-24
上傳用戶: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.
上傳時間: 2013-11-02
上傳用戶:yph853211