Research Article
Compact Microstrip Lowpass Filter with Low Insertion Loss for UWB Medical Applications
Table 2
Performance comparisons between published works and proposed filter.
| Ref | Relative stopband bandwidth | Rejection level (dB) | Up to |
| [3] | 0.92 | 20 | 6.8 GHz | [4] | 1.54 | 14 | 17 GHz | [5] | 1.52 | 10 | 12 GHz | [7] | 0.85 | 15 | 5 GHz | [8] | 1.45 | 20 | 20 GHz | [9] | 1.07 | 10 | 10 GHz | [11] | 0.58 | 15 | 10 GHz | [12] | 1.2 | 30 | 10 GHz | [13] | 1.36 | 10 | 16 GHz | [16] | 1.42 | 10 | 6 GHz | [17] | 1.14 | 15 | 11 GHz | [18] | 1.2 | 10 | 20 GHz | [19] | 1.2 | 10 | 8 GHz | [20] | 1.407 | 20 | 4.5 GHz | [21] | 1.3 | 20 | 19 GHz | [22] | 0.8 | 30 | 5 GHz | This work | 1.5 | 20 | 20 GHz |
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