Models and Properties of Slow-Wave Systems

In addition to ordinary meander and helical systems, special types of wide-band slow-wave structures have been developed and used in practice. Twined helical, quasi-symmetrical helical, gutter-type helical, and meander systems are considered in this chapter. Models based on multiconductor lines are used. Also, we analyze the influence of periodical inhomogeneities and the influence of finite length on properties of slow-wave systems.

This chapter is based on results of references 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16.

4.1  Models and Properties of Special Types of Helical Systems

4.1.1  Twined Helical System

Usually, symmetrical slow-wave structures consist of two helical or meander electrodes ...

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