Research Article
Realization of Negative Group Delay Network Using Defected Microstrip Structure
Table 1
Performance comparison of proposed NGD networks with conventional.
| | (GHz) | (ns) | S21max (dB) | NGD BW (MHz) | NGD BW product | Return loss (dB) |
| [7]* | 1.00 | −2.30 | 1.680 | X | X | −10 | [9]* | 0.310 | −1.52 | 0.290 | 120 | 0.182 | −15 | [10]* | 0.454 | −1.52 | 0.300 | 103 | 0.156 | −15 | [3, 4, 11] | 2.140 | −9.00 | −62.40 | 30 | 0.270 | <−20 | [12] | 4.500 | −0.05 | −10.00 | 3000 | 0.150 | X | [2] | 3.505 | −3.80 | −37.16 | 80 | 0.304 | X | This work | 2.125 | −8.20 | −37.84 | 40 | 0.328 | < −19 |
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Active NGD network.
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