A comparison of different production methods

Using three different methods, a circuit board prototype of a microstrip bandpass filter is produced and the results are compared. In the first two methods, the circuit board is structured by mechanically removing the copper from the base material once by laser ablation (ProtoLaser U4) and second by milling (ProtoMat S103). The third method is the classical chemical method of etching the copper. It is also the comparison between the fast and simple in-house procedures laser ablation and milling compared to the classic printed circuit board production technique.