Novel design of multiplexed sensors using a dual FBGs scheme (original) (raw)

the notch band and UWB passband are 2.4 dB and 2.6 dB, respectively. For the notch band, MAR of the transmission skirt is 32.94 dB/GHz calculated from 5.34 GHz with À3 dB to 6.24 GHz with À14.6 dB. The inevitable insertion loss observed in operation frequency higher than 5 GHz can be improved by replacing the substrate with other materials having a smaller loss tangent than that of FR4. lists the performance comparison among the fabricated UWB-BPF and other filters in previous publications. It is shown that the proposed UWB-BPF adopting C-shaped DGS structure has the advantage of miniaturization.