Filters with Distributed Elements


At microwave frequencies, the lumped elements discussed in Chapter 3 tend to become small and therefore difficult to manufacture. In addition, the lumped inductors and capacitors depart from their ideal characteristics due to radiation, loss, and propagation effects. In this chapter, we will discuss the synthesis of analog filter structures that are based on distributed circuit elements. There exist a large number of components that must be modeled by distributed circuit elements. To discuss all filter structures based on commonly used components and associated design techniques is beyond the scope of this book. The interested reader may find a wealth of material in [7, 50, 53, 93, 95, 96, 97, 99].


Transmission Line Input Impedance Unit Element Characteristic Impedance Microstrip Line 

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Dept. Electrical Engineering Division of Electronics SystemsLinköping UniversitySweden

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