Abstract
The signal quality of antennas and waveguides in the transmission of electromagnetic waves are very much dependent on the surface finish of these devices. Effects of pulse parameters on the surface properties of silver coatings of the copper substrates have been analysed in terms of surface roughness and S-parameter (scattering parameter). The duty cycle, frequency and average current density were used as three pulse parameters. Three levels were selected for each parameter in the experimental design. The surface finish was found to be directly proportional to duty cycle and average current density but inversely proportional to frequency. The S11 scattering parameter observations were made relative to a gold-plated reference coupon. It was analysed that the smoother surface had more reflection power in terms of S11 parameter thus decreasing the loss of radiation.
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