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264 | Majeed

(a) (b)

(c) (d)

Fig. 13. The simulated 3-dimensional far field radiation patterns for suggested antenna for the cases with two and without
notches at (a) Without of notch 5.42 GHz, (b) With two notches 5.42 GHz, (c) Without of notch 7.8 GHz, (b) With two notches
7.8 GHz

TABLE II.
PERFORMANCE COMPARISON FOR DIFFERENT DESIGNS OF UWB APPLICATIONS AND THE SUGGESTED ANTENNA

Reference Dimension (mm) FrequencyBand(GHz) Bandwidth(%) NotchNumber Gain (dBi)
[1] 26 × 32 × 1.6 3.2-10.4 106 One NA
[11] 26 × 40 × 0.8 3.1-10.6 109 Three NA
[9] 31 × 31 × 1.5 3.1-10.6 109 NA
[7] 3.1-17.2 139 One or Two
[14] 15.2 × 31.4 × 1.6 3.1-10.6 109 One About 2.5
[15] 24 × 24 × 1.6 3.1-10.6 One NA
[16] 45 × 35 × 0.6 3.2-10.4 166.19 Three NA
[17] 40 × 40 × 0.6 109 Two 5.35
3.17-11.61 125 Two NA
[This work] 37.8 × 27.1 × 1.6 3.16– to over 15 131
24.5 × 24.5 × 1.4 One and Two 2.89 and 4.97

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