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One of the wonderful things about living in these times is the chance to witness, and occasionally be part of, major technological trends with often profound impacts on society and people’s lives. At the risk of stating the obvious, one of the greatest technological trends has been the growth of wireless personal communication—the development and success of a variety of cellular and personal communication system technologies, such as GSM, CDMA, and Wireless Data and Messaging, and the spreading of the systems enabled by these technologies worldwide. The impact on people’s lives has been significant, not only in their ability to stayin touch with their businessassociatesand with their families, but often in the ability to save lives and prevent crime. On some occasions, people who have never before used a plain old telephone have made their first long distance communication using the most advanced satellite or digital cellular technology. This growth of wireless commu-nication has encompassed new frequencies, driven efforts to standardize communication protocolsand frequenciesto enablepeopletocommunicate better aspart of aglobal network, and has encompassed new wireless applications. The wireless web is with us, and advances in wireless global positioning technology are likely to provide more examples of lifesaving experiences due to the ability to send help precisely and rapidly to where help is urgently needed.
RF and microwave circuit design has been the key enabler for this growth and success in wireless communication. To a very large extent, the ability to mass produce high quality, dependable wireless products has been achieved through the advances of some incredible RF design engineers, sometimes working alone, oftentimes working and sharing ideas as part of a virtual community of RF engineers. During these past few years, these advances have generated a gradual demystification of RF and microwave circuitry, moving RF techniques ever so reluctantly from “black art” to science. Dr. Ulrich Rohde has long impressed many of us as one of the principal leaders in these advances.
In this book, RF/Microwave Circuit Design for Wireless Applications, Dr. Rohde helps clarify RF theory and its reduction to practical applications in developing RF circuits. The book providesinsights into thesemiconductor technologies, and how appropriatetechnology decisions can be made. Then, the book discusses—first in overview, then in detail—each of the RF circuit blocks involved in wireless applications: the amplifiers, mixers, oscillators, and frequency synthesizers that work together to amplify and extract the signal from an often hostile environment of noise and reflected signals. Dr. Rohde’s unique expertise in VCO and PLL design is particularly valuable in these unusually difficult designs.
It is a personal pleasure to write this foreword—Dr. Rohde has provided guest lectures to engineersatMotorola,and providedsuggestions on paths to takeandpathsto avoid to several design engineers. The value his insights have provided are impossible to measure, but are so substantial thatweowehim a“thanks” thatcanneverbeexpressed strongly enough. Ibelieve that his impact on the larger RF community is even more substantial. This book helps share his expertise in a widely available form.
【文件名】:081113@52RD_RF Microwave Circuit Design for Wireless Applications.part1.rar
【格 式】:rar
【大 小】:4000K
【简 介】:
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发表于 2008-11-13 11:53:14
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