A modified compact microstrip resonance cell (CMRC) low pass filter (LPF) with ultrawide and deep stopband using novel fractal patches is presented. The proposed filter has low insertion loss in the passband, good selectivity, ultrawide and deep stopband. The experimental results show a 3-dB cut-off frequency of 2.85 GHz and out-of-band rejection up to 67 GHz with 181.5% relative stopband bandwidth.
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