Table 3.
Reflectance plot (S11), total bands, resonance frequency, VSWR, and bandwidth data representation for the proposed four antenna structures using a substrate of FR4.
| Design | No of Bands | Reflectance Response (S11) | Resonance Frequency (GHz) | VSWR | Bandwidth (GHz) | Starting Point (GHz) | Ending Point (GHz) |
|---|---|---|---|---|---|---|---|
| CPIO and SWT | 3.00 | −26.11 | 3.38 | 1.51 | 0.13 | 3.32 | 3.45 |
| −15.70 | 4.66 | 5.21 | 0.22 | 4.59 | 4.81 | ||
| −12.30 | 5.56 | 8.00 | 0.11 | 5.50 | 5.61 | ||
| CPIO and SWOT | 2.00 | −21.52 | 3.39 | 1.18 | 0.06 | 3.36 | 3.42 |
| −15.60 | 4.64 | 1.39 | 0.07 | 4.61 | 4.68 | ||
| DCPIO and SWT | 3.00 | −10.74 | 6.06 | 1.99 | 0.10 | 6.01 | 6.11 |
| −11.00 | 7.27 | 1.83 | 0.24 | 7.17 | 7.41 | ||
| −10.89 | 8.49 | 1.87 | 0.20 | 8.40 | 8.60 | ||
| DCPIO and SWOT | 1.00 | −10.10 | 8.64 | 2.21 | 0.02 | 8.63 | 8.65 |