Update Networks.ipynb
Update Networks.ipynb

Made the datatype complex - so that it works with any S11... input
temmeand/scikit-rf,jhillairet/scikit-rf,scikit-rf/scikit-rf,scikit-rf/scikit-rf,temmeand/scikit-rf,jhillairet/scikit-rf,temmeand/scikit-rf,jhillairet/scikit-rf