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This paper presents the radiation performance of a modified elliptical patch microstrip antenna (EPMA) simulated on glass epoxy FR4 substrate material. For modification in patch geometry, two parallel narrow slits in the EPMA geometry parallel to its minor axis are applied. In this way, patch is divided in three patches. The two outer patches are identical in shape and size. The central patch is excited...
The radiation properties of a circular patch antenna with u-slot designed on glass epoxy FR-4 substrate are obtained and compared with that of a normal circular patch antenna designed under identical conditions. The modified antenna not only resonates at two different frequencies allotted by IEEE 802.16 working group for lower band (2.495-2.695 GHz) operation for WiMax systems but also presents marked...
In the present paper, a pentagonal microstrip patch antenna is proposed to achieve compact size, broadband and dual frequency operation. It is observed that the proposed antenna is radiating at two different frequencies without much loss in its radiation performance showing broad band performance. Both these resonance frequencies lie in the median band (3.25 to 3.85 GHz) of WiMax systems, a new standard...
A modified rectangular patch antenna with an air gap in between the two substrate layers of patch antenna is analyzed using the IE3D simulation software to achieve compact size, lightweight and wide band operation. With variation in patch geometry and insertion of thin air gap, the bandwidth of traditional microstrip antenna which varies between 1 - 2 % is improved to more than 33.5%. Different radiation...
The simulation results of right triangular microstrip antenna (RTMA) with and without slits are reported in this paper. The structure has three layered structure in between conducting patch and the ground plane. It is found that antenna without slits but having an air gap of 1mm between the dielectric layers, resonates at a single frequency but with much improved bandwidth (32.8%). On applying two...
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