[EN] The Empty Substrate IntegratedWaveguides (ESIW) maintain the advantages of the Substrate
Integrated waveguide (SIW) (i.e. low-volume, low profile, lightweight, easy manufacturing, and integration
in a planar circuit ...
[EN] In recent years, multiple technologies have been proposed with the aim of combining the characteristics of traditional planar and non-planar transmission lines. The first and most popular of these technologies is the ...