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The enormous rise of digital applications in the last two decades arouses the suggestion that analog techniques will lose their importance. However in applications that work with digital signals analog techniques are still very important for a number of reasons. First the signal that must be processed or stored may be analog at the input and output of the system. Second when digital circuits must operate at high speed the analog behavior becomes important again. And third when only limited bandwidth and signal to noise ratio is available the theoretical maximum data rate is determined by Shannon’s law. This theoretical limit can only be approximated in practice when complex modulation schemes are used, and after this modulation process the signal is analog again. Of course this does effect the tremendous advantage of digital signals compared to analog signals. Where analog signals deteriorate every time they are processed or stored, digital signals can be recovered perfectly when they are tailored to the properties of the system they are used for. The accuracy of digital signal processing is only limited by practical constraints and many digital signals can be compressed very effective so that after compression they use less bandwidth then their analog counterparts. In any aplication there will thus be analog and digital parts and often the choice has to be made if an analog or a digital solution is preferred for a certain function.
Metal oxide semiconductors, Complementary. --- Low voltage integrated circuits. --- Systems engineering. --- Computer engineering. --- Circuits and Systems. --- Electrical Engineering. --- Electronic circuits. --- Electrical engineering. --- Engineering. --- Electric engineering --- Engineering --- Electron-tube circuits --- Electric circuits --- Electron tubes --- Electronics --- Construction --- Industrial arts --- Technology
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This book introduces power amplifier design in 22nm FDSOI CMOS dedicated towards 5G applications at 28 GHz and presents 4 state-of-the-art power amplifier designs. The authors discuss power amplifier performance metrics, design trade-offs, and presents different power amplifier classes utilizing efficiency enhancement techniques at 28 GHz. The book presents the design process from theory, simulation, layout, and finally measurement results. Covers thoroughly design steps starting from theory, to simulation, layout and measurement steps; Includes simulation details and comparison with existing state of the art designs; Shows not only the design of the power amplifier block, but also the steps taken to integrate it into a complete phased array transmitter architecture; Discusses design trade-offs at high frequency, including performance metrics and technology limitations, and discusses different ways to overcome them.
Spectrometric and optical chemical analysis --- Electronics --- Telecommunication technology --- Electrical engineering --- tekstverwerking --- elektronica --- elektrische circuits --- spectrometrie
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Power amplifiers. --- 5G mobile communication systems. --- Telecommunication. --- Electric communication --- Mass communication --- Telecom --- Telecommunication industry --- Telecommunications --- Communication --- Information theory --- Telecommuting --- 5G networks --- 5th Generation cellular mobile communications --- Fifth Generation wireless --- Wireless communication systems --- Amplifiers (Electronics)
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