One of our innovative method for creating miniaturize waveguide filters based on locally resonant metamaterials (LRMs) was published in the prestigious journal of Physical Review Applied in August 2021. The ultrasmall metamaterial filters (metafilters) are utilizing a subwavelength (sub-λ) guiding mechanism in evanescent hollow waveguides, loaded with small resonant elements. Also, we suggested a subwavelength technique, which we refer to as a metaport, to match the small filters to standard interfaces.
