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Low-cost dielectric substrate for designing low profile multiband monopole microstrip antenna.

Ahsan MR, Islam MT, Habib Ullah M, Arshad H, Mansor MF - ScientificWorldJournal (2014)

Bottom Line: This paper proposes a small sized, low-cost multiband monopole antenna which can cover the WiMAX bands and C-band.The proposed antenna of 20 × 20 mm(2) radiating patch is printed on cost effective 1.6 mm thick fiberglass polymer resin dielectric material substrate and fed by 4 mm long microstrip line.The experimental results show that the prototype of the antenna has achieved operating bandwidths (voltage stand wave ratio (VSWR) less than 2) 360 MHz (2.53-2.89 GHz) and 440 MHz (3.47-3.91 GHz) for WiMAX and 1550 MHz (6.28-7.83 GHz) for C-band.

View Article: PubMed Central - PubMed

Affiliation: Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia.

ABSTRACT
This paper proposes a small sized, low-cost multiband monopole antenna which can cover the WiMAX bands and C-band. The proposed antenna of 20 × 20 mm(2) radiating patch is printed on cost effective 1.6 mm thick fiberglass polymer resin dielectric material substrate and fed by 4 mm long microstrip line. The finite element method based, full wave electromagnetic simulator HFSS is efficiently utilized for designing and analyzing the proposed antenna and the antenna parameters are measured in a standard far-field anechoic chamber. The experimental results show that the prototype of the antenna has achieved operating bandwidths (voltage stand wave ratio (VSWR) less than 2) 360 MHz (2.53-2.89 GHz) and 440 MHz (3.47-3.91 GHz) for WiMAX and 1550 MHz (6.28-7.83 GHz) for C-band. The simulated and measured results for VSWR, radiation patterns, and gain are well matched. Nearly omnidirectional radiation patterns are achieved and the peak gains are of 3.62 dBi, 3.67 dBi, and 5.7 dBi at 2.66 GHz, 3.65 GHz, and 6.58 GHz, respectively.

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Measured gain of the proposed antenna.
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fig9: Measured gain of the proposed antenna.

Mentions: The right hand side of (5), (6), and (3) can be calculated if the value of R and the ratio of received power/transmitted power are known. Thus, three unknown equations are produced with three unknown variables as follows:(8)G1 dB+G2 dB=X,G1 dB+G3 dB=Y,G2 dB+G3 dB=Z.The solution of (8) is easy and simple to calculate gain of three antennas(9)G3 dB(AUT)=Y−X+Z2.Figure 9 shows the measured and simulated gains against the corresponding operating frequency bands. For the lower operating bands at 2.53–2.89 GHz the average gain is 2.43 dBi whereas for the band 3.47–3.91 GHz the gain is observed to be 2.67 dBi. The average gain for upper band at 6.28–7.83 GHz is achieved, 4.57 dBi, which in turn increases directivity of the designed antenna.


Low-cost dielectric substrate for designing low profile multiband monopole microstrip antenna.

Ahsan MR, Islam MT, Habib Ullah M, Arshad H, Mansor MF - ScientificWorldJournal (2014)

Measured gain of the proposed antenna.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4127211&req=5

fig9: Measured gain of the proposed antenna.
Mentions: The right hand side of (5), (6), and (3) can be calculated if the value of R and the ratio of received power/transmitted power are known. Thus, three unknown equations are produced with three unknown variables as follows:(8)G1 dB+G2 dB=X,G1 dB+G3 dB=Y,G2 dB+G3 dB=Z.The solution of (8) is easy and simple to calculate gain of three antennas(9)G3 dB(AUT)=Y−X+Z2.Figure 9 shows the measured and simulated gains against the corresponding operating frequency bands. For the lower operating bands at 2.53–2.89 GHz the average gain is 2.43 dBi whereas for the band 3.47–3.91 GHz the gain is observed to be 2.67 dBi. The average gain for upper band at 6.28–7.83 GHz is achieved, 4.57 dBi, which in turn increases directivity of the designed antenna.

Bottom Line: This paper proposes a small sized, low-cost multiband monopole antenna which can cover the WiMAX bands and C-band.The proposed antenna of 20 × 20 mm(2) radiating patch is printed on cost effective 1.6 mm thick fiberglass polymer resin dielectric material substrate and fed by 4 mm long microstrip line.The experimental results show that the prototype of the antenna has achieved operating bandwidths (voltage stand wave ratio (VSWR) less than 2) 360 MHz (2.53-2.89 GHz) and 440 MHz (3.47-3.91 GHz) for WiMAX and 1550 MHz (6.28-7.83 GHz) for C-band.

View Article: PubMed Central - PubMed

Affiliation: Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia.

ABSTRACT
This paper proposes a small sized, low-cost multiband monopole antenna which can cover the WiMAX bands and C-band. The proposed antenna of 20 × 20 mm(2) radiating patch is printed on cost effective 1.6 mm thick fiberglass polymer resin dielectric material substrate and fed by 4 mm long microstrip line. The finite element method based, full wave electromagnetic simulator HFSS is efficiently utilized for designing and analyzing the proposed antenna and the antenna parameters are measured in a standard far-field anechoic chamber. The experimental results show that the prototype of the antenna has achieved operating bandwidths (voltage stand wave ratio (VSWR) less than 2) 360 MHz (2.53-2.89 GHz) and 440 MHz (3.47-3.91 GHz) for WiMAX and 1550 MHz (6.28-7.83 GHz) for C-band. The simulated and measured results for VSWR, radiation patterns, and gain are well matched. Nearly omnidirectional radiation patterns are achieved and the peak gains are of 3.62 dBi, 3.67 dBi, and 5.7 dBi at 2.66 GHz, 3.65 GHz, and 6.58 GHz, respectively.

Show MeSH