Dispersion engineering for slow-wave structure design Book Chapter

Chipengo, U, Nahar, NK, Volakis, JL et al. (2021). Dispersion engineering for slow-wave structure design . 87-126. 10.1002/9781119384472.ch4

cited authors

  • Chipengo, U; Nahar, NK; Volakis, JL; Phelps, ADR; Cross, AW



  • This chapter presents case studies of various ways to perform dispersion engineering using various slow-wave structures (SWSs). Metamaterials (MTMs) with negative effective permittivity and permeability have been realized using a periodic arrangement of metallic rods and split ring resonator. Studies on the effective medium property of MTMs have led to various applications in high-power microwave (HPM) sources. The chapter presents a MTM-based SWS design for high-power microwave generation. This design features broadside split rings that are loaded in a cylindrical waveguide and grounded using metallic support. A design goal would be to design a SWS that exhibits degenerate band edge characteristics for efficient HPM generation applications. The chapter shows how a volumetric axially symmetric mode operating near cutoff can be coupled to an evanescent surface mode on a two-dimensional periodic surface lattice. Traveling wave tube amplifiers are HPM sources that find application in radar and satellite communication systems, among others.

publication date

  • November 29, 2021

Digital Object Identifier (DOI)

start page

  • 87

end page

  • 126