Abstract

The development of technology related to telecommunications equipment experimented from many research in improving its performance. The use of dielectric materials is widely applied in various telecommunications devices such as antennas or filters. The dielectric filter has the ability to change the working response of the filter, but the dielectric has limitations due to the dielectric characteristic
itself both in terms of dimensions and the nature of the material. Therefore, in order to vary the properties of the dielectric itself an additional component in the form of metal is used in order to modify the dielectric itself into an artificial dielectric. In this research a filter will be made using artificial dielectric, Array-Slotted Miliwires by inserting a copper wire into the FR-4 dielectric material. Characteristics of artificial dielectric materials against filter work response are observed by varying the properties of the wires namely height, number, and distance between wires. The results of the design realized in the form of hardware is obtained with a value of S11 = -16.6 dB and S21 = -0.26 dB at a frequency of 3.5 GHz. The measurement results obtained by the filter work response at a frequency of 4.2 GHz with a value of S11 = -26.95 dB and S21 = -8.44 dB. Differences from simulation and measurement results are analyzed due to the use of adhesives causing a decrease in the permittivity value of the material. It also can be concluded that by reducing the numbers of wires will shift the frequency respond of the filter lower.

Keywords—Dielectric Material, Filter, Miliwires, Permittivity