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Table 2 Comparison of investigated DB-BPF with existing filters

From: A compact conductor-backed CPW-based dual bandpass filter for satellite S-band and C-band

ReferencesInsertion loss |S21| (dB)Return loss |S11| (dB)Pass band (GHz)Size (mm)2
Qi Duan et al.− 0.8− 304.5195.61
Shanming et al.− 1− 351.2732.16
Zhenyu et al.− 4− 340.5485
Yien et al.− 4.5− 250.4900
This work− 1.2− 35.2(2–3.8) and (4.3–7.8)175.5