![]() Printed microstrip patch antennas are competitive solutions for their inherent advantages of low-cost, low-profile, lightweight, less troublesome fabrication, and ease of integration to the system. Moreover, the recent improvement and versatile use of personal communications and portable devices necessitate the mandatory use of low-cost, lightweight, compact, and multifrequency antenna. The modern technological advancement and emerging trends in the area of wireless communications raise considerable research interest in antenna designs to integrate easily with system by ensuring the low physical profile with multifunctionality in a single device. 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. The simulated and measured results for VSWR, radiation patterns, and gain are well matched. 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 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 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. Note that the fields under the L-edges are of opposite polarity (due to the half-wave nature of the patch) and when the field lines curve out and finally propagate out into the direction normal to the substrate they are now in the same direction (both facing left).This paper proposes a small sized, low-cost multiband monopole antenna which can cover the WiMAX bands and C-band. Radiation that occurs at the ends of the W-dimension is far less and is referred to as the cross-polarization.The image below is a side view which attempts to show a snapshot of the E-field under the patch. The radiating edges are at the ends of the L-dimension of the rectangle, which sets up the single polarization. The dimension L is universally taken to mean the long dimension, which causes resonance at its half-wavelength frequency. ![]() The figure below shows the geometry of the rectangular microstrip antenna, not including the ground plane and dielectric which would be underneath. ![]()
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