This book presents and discusses alternatives to ordinary transmission
lines for the design and implementation of advanced RF/microwave
components in planar technology.
This book is devoted to the analysis, study and applications of
artificial transmission lines mostly implemented by means of a host line
conveniently modified (e.g., with modulation of transverse dimensions,
with etched patterns in the metallic layers, etc.) or with reactive
loading, in order to achieve novel device functionalities, superior
performance, and/or reduced size.
The author begins with an introductory chapter dedicated to the
fundamentals of planar transmission lines. Chapter 2 is focused on
artificial transmission lines based on periodic structures (including
non-uniform transmission lines and reactively-loaded lines), and
provides a comprehensive analysis of the coupled mode theory. Chapters 3
and 4 are dedicated to artificial transmission lines inspired by
metamaterials, or based on metamaterial concepts. These chapters include
the main practical implementations of such lines and their circuit
models, and a wide overview of their RF/microwave applications
(including passive and active circuits and antennas). Chapter 5 focuses
on reconfigurable devices based on tunable artificial lines, and on
non-linear transmission lines. The chapter also introduces several
materials and components to achieve tuning, including diode varactors,
RF-MEMS, ferroelectrics, and liquid crystals. Finally, Chapter 6 covers
other advanced transmission lines and wave guiding structures, such as
electroinductive-/magnetoinductive-wave lines, common-mode suppressed
balanced lines, lattice-network artificial lines, and substrate
integrated waveguides.
Artificial Transmission Lines for RF and Microwave Applications
provides an in-depth analysis and discussion of artificial transmission
lines, including design guidelines that can be useful to researchers,
engineers and students.