Parametric Electronics

An Introduction

  • Karl-Heinz Löcherer
  • Claus-Dieter Brandt

Part of the Springer Series in Electrophysics book series (SSEP, volume 6)

Table of contents

  1. Front Matter
    Pages I-XI
  2. Karl-Heinz Löcherer, Claus-Dieter Brandt
    Pages 1-11
  3. Karl-Heinz Löcherer, Claus-Dieter Brandt
    Pages 12-62
  4. Karl-Heinz Löcherer, Claus-Dieter Brandt
    Pages 63-67
  5. Karl-Heinz Löcherer, Claus-Dieter Brandt
    Pages 68-92
  6. Karl-Heinz Löcherer, Claus-Dieter Brandt
    Pages 93-158
  7. Karl-Heinz Löcherer, Claus-Dieter Brandt
    Pages 159-202
  8. Karl-Heinz Löcherer, Claus-Dieter Brandt
    Pages 203-218
  9. Karl-Heinz Löcherer, Claus-Dieter Brandt
    Pages 219-275
  10. Karl-Heinz Löcherer, Claus-Dieter Brandt
    Pages 276-295
  11. Back Matter
    Pages 296-330

About this book

Introduction

In 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.

Keywords

Kapazitätsvariationsdiode Parametrischer Verstärker circuit electronics microwave

Authors and affiliations

  • Karl-Heinz Löcherer
    • 1
  • Claus-Dieter Brandt
    • 1
  1. 1.Lehrstuhl und Institut für HochfrequenztechnikTechnische Universität HannoverHannover 1Fed. Rep. of Germany

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-642-67937-7
  • Copyright Information Springer-Verlag Berlin Heidelberg 1982
  • Publisher Name Springer, Berlin, Heidelberg
  • eBook Packages Springer Book Archive
  • Print ISBN 978-3-642-67939-1
  • Online ISBN 978-3-642-67937-7
  • Series Print ISSN 0172-5734
  • About this book