Paper Title
Design of Bandpass and Band-stop Filters using MTM Inspired Fractal Square Patches Metal and Complementary

Abstract
In, this paper, a study of meta-surface inspired filters comprising different arrangements of square metallic patches, and their complementary geometries for Terahertz are shown. Here First the metal patch and its complementary are considered and then gradually different alignments of units and their complementary structures studied are corresponding responses are discussed. Some arrangements of those geometries show dual-band-stop responses as well as some show band pass responses. Different parameters of the responses are studied such as cut-off frequencies, roll-off factor, band roll-off insertion loss, and maximum rejection level. The band pass hasa center frequency at 210 GHz, 3dB bandwidth is 207-213 GHz and maximum insertion loss is -9.5dB. The roll off factor the pass band is -2.16dB/GHZ. The stop band filter response shows center frequency is 105 GHz,3dBbandwidth is 86-121 GHz, the maximum rejection level is -17.5dB, and the roll-off factor is -0.76dB/GHz. Again, dual Stop Band filter response shows centre frequency is 155 GHz and 210 GHz, 3dB bandwidth is 152-157GHzZ, the maximum rejection level is -17.38 dB & -56.69dBand roll-off factor is -0.5dB/ GHz-1.5dBGHz. Keywords - Meta-Materials (MTM), Microwaves, Band-Stop Filters, Meta-Materials Filters, Dual-Band Stop Meta Materials, Hertz Region, Twin Band, Band Forest all Cleanout Filter.