{"product_id":"9783642679391","title":"Parametric Electronics: An Introduction","description":"\u003ch1\u003eParametric Electronics: An Introduction\u003c\/h1\u003e \u003ch2\u003eLöcherer, K.-H.; Brandt, C.-D.\u003c\/h2\u003e \u003cp\u003eIn this chapter, first the parametric principle is illustrated by two simple examples, one mechanical and one electrical. Then the realization of time­ varying reactances is explained, followed by a short history of \"parametric electronics\". This survey demonstrates the importance of parametric circuits in the field of low-noise microwave electronics as well as explains the organization of this book. 1.1 The Parametric Principle An oscillating system comprising a single or several time-varying energy­ storing elements is called a parametric system; usually the variations are harmonic functions of time. Everybody knows one example of a mechanical parametric system from his childhood, namely, a swing. Therefore, we will start with this example though as it turns out, a swing is a rather compli­ cated parametric system. Fortunately, the electrical parametric systems, which form the object of this book, are simpler. Figure 1.1 shows such a swing. If it is removed from its equilibrium position and the child stands on it in a fixed attitude, the swing oscillates with a certain amplitude, the magnitude of which decreases with time due to the mechanical friction of the system. To increase the amplitude of oscil­ lation, the child changes positions during swinging: it crouches and straightens in a certain way twice during one cycle of the swing.\u003c\/p\u003e \u003ch3\u003eDetails\u003c\/h3\u003e \u003cp\u003ePublished by: Springer\u003c\/p\u003e \u003cp\u003ePublication Date: 2011-12-10\u003c\/p\u003e \u003cp\u003eFormat: Paperback\u003c\/p\u003e \u003cp\u003eISBN-13: 9783642679391\u003c\/p\u003e \u003cp\u003eDOI: 10.1007\/978-3-642-67937-7\u003c\/p\u003e \u003cp\u003eDimensions: 229.0cm x152.0cm\u003c\/p\u003e \u003cp\u003ePages: 330.0\u003c\/p\u003e ","brand":"Springer Berlin Heidelberg","offers":[{"title":"Default Title","offer_id":44450710683788,"sku":"9783642679391","price":98.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/9545\/1788\/files\/9783642679391_c55b686a-48ae-4120-8e02-2737f96a8b8e.jpg?v=1756931616","url":"https:\/\/lateknightbooks.com\/products\/9783642679391","provider":"Late Knight Books and Services, LLC","version":"1.0","type":"link"}