Methods for planar integrated low pass filter performance improvements in high frequency

The improvement of the performances of a filter involves two major research directions: the first one refers to the attenuation increase (through the increase of the losses) at high frequency and the second one refers to the suppression of the parasitic effects from the constitutive devices. In this light, this paper presents the authors contributions in terms of improving the filter performances through the attenuation increase at high frequency considering also the parasitic effects minimization. Thus, in order to increase the attenuation at high frequency the use of nickel platting method on the copper conductors is proposed, method which will be tested on a low-pass filter constructed in planar electromagnetic technology.