All the plots from the paper can be replicated using the two python scripts included in the data. Uncoupled and coupled folders contain the raw VNA results for the coupled and uncoupled systems. Extracted contains the extracted mode positions for the uncoupled system while Xdata contains the extracted modes for the coupled system. Finally the updn folder contains the same data as Xdata but at a lower resolution for faster computation.The article associated with this dataset is located in ORE at: http://hdl.handle.net/10871/33901This is the dataset used for the Baraclough et al. (2018) article "Investigation of the coupling between tunable split-ring resonators" published in Physical Review B: condensed matter and materials physics.We acknowledge financial support from the Engineering and Physical Sciences Research Council (EPSRC) of the United Kingdom, via the EPSRC Centre for Doctoral Training in Metamaterials (Grant No. EP/L015331/1). W.L.B. acknowledges the support of the European Research Council through project Photmat (ERC-2016-AdG-742222). I.R.H. acknowledges support from the EPSRC via the TEAM-A prosperity partnership (Grant No. EP/L015331/1)