WIRELESS PERSONAL COMMUNICATIONS, vol.111, no.3, pp.1899-1907, 2020 (SCI-Expanded)
A new technique for designing compact, notched filter is presented in this paper. The proposed approach is based on the design and optimization of micro strip patch band stop filter, which acts as the unit cell of a higher order filter. This unit cell is composed of half wavelength transmission line method. The proposed filter is designed for military band applications (4-8 GHz) by using low cost substrate material FR4. The proposed filter is designed and simulated through the HFSS software. The filter is fabricated and tested. Finally the measured result is compared with the simulation result.