Crosstalk evaluation between ultra high speed multi-layer compatible PCB dielectric waveguides and reduction using split ring resonators

In this paper, the crosstalk between closely spaced ultra-high speed dielectric waveguides is evaluated. The waveguides are operated at frequencies up to 100GHz, while being integrable in commercially available multi-layered printed circuit boards. The cores of the dielectric waveguides have Megtron6-like material properties while the cladding uses Teflon-like material properties. The crosstalk between the waveguides is evaluated for a variety of waveguide dimensions and spacings between waveguides. A novel technique using split ring resonators to reduce crosstalk between waveguides is introduced. The resonators are placed between the waveguides in order to absorb wave leakage which causes crosstalk, resulting in crosstalk reduction.