Design Analysis and Comparison of HE and E Shaped Microstrip Patch Antennas
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A regular increase in the demand of wireless systems has attracted momentous interest in suitable antenna designs that can be easily integrated with systems. Different innovative antenna structures have been proposed for single, dual or multiple bands. Several researchers are exploring different designs of microstrip patch antennas. In this regard, this paper presents the design analysis of the HE and E shaped microstrip patch antenna. The finite element method has been studied and is the basis of these designs.
The feeding point is inside the patch and the computational analysis showed some interesting results for radiation pattern, far field domain, scattered parameters (s-parameters) and bandwidth. For these designs, the characteristic impedance is 50 Ω and the operating frequency is in-between 1.4 to 1.7 GHz.
The microstrip patch antennas are enclosed in the spherical domain of 20 mm thickness containing air or vacuum inside it. The polar plot indicated that the radiation pattern for HE shaped antenna is better than the E shaped antenna, and with the increase in frequency, the scattered parameters decreases upto resonant frequency and thereafter increases rapidly
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