RF và mạch lạc lò vi sóng P4

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RF và mạch lạc lò vi sóng P4

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A communication circuit designer frequently requires means to select (or reject) a band of frequencies from a wide signal spectrum. Resonant circuits provide such ®ltering. There are well-developed, sophisticated methodologies to meet virtually any speci®cation. However, a simple circuit suf®ces in many cases. Further, resonant circuits are an integral part of the frequency-selective ampli®er as well as of the oscillator designs. These networks are also used for impedance transformation and matching. This chapter describes the analysis and design of these simple frequency-selective circuits, and presents the characteristic behaviors of series and parallel resonant circuits. Related parameters, such as quality factor,...

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