Fig. 1: Concept of wideband waveguide metatronics with proposed negative elements.
From: Negative capacitors and inductors enabling wideband waveguide metatronics
a Concept and element map including positive and negative lumped elements for wideband waveguide metatronics (\({\omega }_{0}\) is the cutoff frequency of the waveguide). b A comprehensive map of the lumped elements for waveguide metatronics.
