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Fractal microstrip patch antennas for dual-band and triple-band wireless applications

Nontuthuko L. Nhlengethwa
Nontuthuko L. Nhlengethwa
 e 
Pradeep Kumar
Pradeep Kumar
   | 09 apr 2021
International Journal on Smart Sensing and Intelligent Systems's Cover Image
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Pubblicato online: 09 apr 2021
Pagine: 1 - 9
Ricevuto: 19 nov 2020
DOI: https://doi.org/10.21307/ijssis-2021-007
Parole chiave
© 2021 Pradeep Kumar et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1:

Iterations of the carpet geometry (Weisstein, 2020).
Iterations of the carpet geometry (Weisstein, 2020).

Figure 2:

Geometrical configuration (A) Top view of DBFMPA (iteration-1), (B) Top view of TBFMPA (iteration-2), (C) Ground plane with DGS, (D) Side view.
Geometrical configuration (A) Top view of DBFMPA (iteration-1), (B) Top view of TBFMPA (iteration-2), (C) Ground plane with DGS, (D) Side view.

Figure 3:

Fabricated antennas (A) Top view of DBFMPA, (B) Top view of TBFMPA, (C) Ground plane with slots, (D) Side view.
Fabricated antennas (A) Top view of DBFMPA, (B) Top view of TBFMPA, (C) Ground plane with slots, (D) Side view.

Figure 4:

Reflection coefficient against frequency of the DBFMPA.
Reflection coefficient against frequency of the DBFMPA.

Figure 5:

Radiation patterns of DBFMPA (A) Radiation patterns at 4.9 GHz, (B) 3-D gain pattern at 4.9 GHz, (C) Radiation patterns at 5.3 GHz, (D) 3-D gain pattern at 5.3 GHz.
Radiation patterns of DBFMPA (A) Radiation patterns at 4.9 GHz, (B) 3-D gain pattern at 4.9 GHz, (C) Radiation patterns at 5.3 GHz, (D) 3-D gain pattern at 5.3 GHz.

Figure 6:

Reflection coefficient of the TBFMPA.
Reflection coefficient of the TBFMPA.

Figure 7:

Radiation patterns of the TBFMPA, (A) Radiation patterns at 2.385 GHz, (B) 3-D gain pattern at 2.385 GHz, (C) Radiation patterns at 5.344 GHz, (D) 3-D gain pattern at 5.344 GHz, (E) Radiation patterns at 5.889 GHz, (F) 3-D gain pattern at 5.889 GHz.
Radiation patterns of the TBFMPA, (A) Radiation patterns at 2.385 GHz, (B) 3-D gain pattern at 2.385 GHz, (C) Radiation patterns at 5.344 GHz, (D) 3-D gain pattern at 5.344 GHz, (E) Radiation patterns at 5.889 GHz, (F) 3-D gain pattern at 5.889 GHz.

Dimensions of the DBFMPA and TBFMPA.

S. No.ParameterValue (in mm) (DBFMPA)Value (in mm) (TBFMPA)
1wg57.953.6
2lg57.952
3W28.9526.8
4L28.9526
5w19.658.93
6l19.658.67
7wf2.892.89
8lf14.77515.29
9DGS1w3.332.977
10DGS1l3.332.88
11DGS2w10.3510
12DGS2l12.8713.33
13w2–2.977
14l2–2.88
15fi–2.29
16hs1.51.5
17hg5.075.07

Directivity, gain, and bandwidth of the antenna without DGS and reflector plane.

Resonant frequency (GHz)Directivity (dBi)Gain (dB)Bandwidth (%)
5.0526.3850.8113.93
5.8447.5040.41592.66

Directivity, gain, and bandwidth of DBFMPA without DGS and reflector plane.

Resonant frequency (GHz)Directivity (dBi)Gain (dB)Bandwidth (%)
4.9056.2831.2813.27
5.5547.167−0.1693.34

Directivity, gain, and bandwidth of DBFMPA with DGS and reflector plane.

Resonant frequency (GHz)Directivity (dBi)Gain (dB)Bandwidth (%)
4.97.3432.673.52
5.37.9521.486.14

Directivity, gain, and bandwidth of the TBFMPA with DGS and reflector plane.

Resonant frequency (GHz)Directivity (dBi)Gain (dB)Bandwidth (%)
2.3856.8832.92.477
5.3447.6712.820.75
5.8898.5362.694.255
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