本文以f1禁系统的可靠性和低成本为立足点,提出了一种基于AT89C2051单片机的RF卡门禁系统设 系计方法。首先简单介绍了组成这个系统的非接触式IC卡,然后详细描述了其软硬件设计的过程。在实际的应用 统设过程中已经验证了该设计方法的合理性。
上传时间: 2013-10-15
上传用户:takako_yang
作者RICHARD CHI-HSI LI,结合自己20年RF设计经验,整理的RF设计技术与经验,工程性很强,从最基本的LNA、MIXERS、差分对等讲起,涉及到阻抗匹配,接地,天线设计,RF系统分析,是一本很不错的书。英文版
上传时间: 2013-10-30
上传用户:ve3344
手机RF知识讲座
上传时间: 2013-10-25
上传用户:黑漆漆
The CC1101 is a low-cost sub- 1 GHztransceiver designed for very low-powerwireless applications. The circuit is mainlyintended for the ISM (Industrial, Scientific andMedical) and SRD (Short Range Device)frequency bands at 315, 433, 868, and 915MHz, but can easily be programmed foroperation at other frequencies in the 300-348MHz, 387-464 MHz and 779-928 MHz bands.CC1101 is an improved and code compatibleversion of the CC1100 RF transceiver. Themain improvements on the CC1101 include:
上传时间: 2013-11-12
上传用户:363186
过去,RF功率的性能完全取决于线性效率。如今,开发者遇到更加复杂的挑战:需要满足多种标准、信号变化和严格的带宽要求等。针对这一问题,飞思卡尔半导体(NYSE:FSL)日前推出新型硅片RF LDMOS功率晶体管Airfast RF功率解决方案,将性能和能效提升至新的高度。飞思卡尔通过新的产品系列解决了这种模式转变带来的问题,该产品系列基于一种更加全面、完整的系统级RF功率技术方法。
上传时间: 2013-11-25
上传用户:drink!
The main objective of this book is to present all the relevant informationrequired for RF and micro-wave power amplifier design includingwell-known and novel theoretical approaches and practical design techniquesas well as to suggest optimum design approaches effectively combininganalytical calculations and computer-aided design. This bookcan also be very useful for lecturing to promote the analytical way ofthinking with practical verification by making a bridge between theoryand practice of RF and microwave engineering. As it often happens, anew result is the well-forgotten old one. Therefore, the demonstrationof not only new results based on new technologies or circuit schematicsis given, but some sufficiently old ideas or approaches are also introduced,that could be very useful in modern practice or could contributeto appearance of new ideas or schematic techniques.
标签: Amplifier Microwave Design Power
上传时间: 2013-12-22
上传用户:vodssv
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.
标签: Communications Amplifiers Wireless Edition
上传时间: 2013-11-12
上传用户:YYRR
RF circuit design theory and application(射频电路设计)
标签: application circuit design theory
上传时间: 2014-12-30
上传用户:aeiouetla
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
上传时间: 2013-11-04
上传用户:kiklkook
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所提供的優勢。
上传时间: 2013-11-24
上传用户:toyoad