Review Article
Defected Ground Structure: Fundamentals, Analysis, and Applications in Modern Wireless Trends
Table 2
Applications, advantages, and disadvantages of different type of DGS.
| S. number | Shape | Reference | Advantage | Disadvantage | Applications |
| 1 | Dumbbell | [12] | Simple structure, easy to design and analyse | Single stop band | Band-stop filter | 2 | HPDGS | [29] | 38.5% size reduction | Larger size than VPDGS, dispersion problem | Matching network of amplifier | 3 | VPDGS | [29] | 44.4% size reduction | Dispersion problem | Matching network of amplifier | 4 | -slot | [14] | Improved -factor | Single stop band | Band-stop filter | 5 | -slot | [14] | Improved -factor | Single stop band | Band-stop filter | 6 | Cross DGS | [15] | Sharp rejection, ultra-wide stop band | ā | Low pass filter | 7 | Fractal DGS | [13] | Wide stop band | No sharp cut-off frequency | Band-stop filter | 8 | Spiral DGS | [30] | Multistop band | Complex analysis | Band-stop filter |
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