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A novel tunable band notch filter which consists of a coplanar waveguide and a corrugated metallic strip with horn shaped arms is presented for terahertz (THz) and microwave applications. The corrugated metallic strip with horn shaped arms offer more attenuation to EM wave than the corrugated metallic strip with conventional rectangular arms as the horn shape provides more area for the efficient trapping...
In this paper we present a novel multiple narrow slits based polarization insensitive metamaterial structure possessing electromagnetic absorption characteristics in C and X band frequencies. The proposed structure have been designed using CST Microwave studio, which shows the metal backed reflection loss of 17 dB and 19.36 dB at 7.30 and 10.80 GHz having percentage absorption of 98% and 98.85% respectively...
In this paper, the moisture content for cement based materials having different water to cement (w/c) ratios is measured using the microwave free space technique. The overall process is non-destructive and employs the time-domain measurement data. The measurement system consists of a vector network analyzer, a wide-band lens horn antenna, cement based material of having different water to cement (w/c)...
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