A solar module having a six layer stack structure, including the following layers: first plastic layer ; second plastic layer ; solar cell layer; third plastic layer ; fiber panel; and fourth plastic layer. A probe-packet sender node transmits probe packets with a sent inter-packet separation and a time-to-live towards an intermediate node. The VCO further includes an active transconductance network that is coupled to a two-terminal port of the first tank and is also coupled to a two-terminal port of the second tank. The fixed part is electrically contacted with the connection material.