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A single-layer, single-feed, metallic cylindrical cavity backed concentric annular-ring microstrip patch antenna (ARMSA) with circular patch has been investigated using a High Frequency Structure Simulator (HFSS) software. Variations in return loss with frequency for different values of air-gap height, radius of circular patch and radiation pattern of proposed antenna have been analyzed. The patch...
The effect of cylindrical metallic enclosure on the resonant frequency of a suspended annular ring microstrip antenna (ARMSA) is investigated using HFSS simulation software and theoretically calculated using modal expansion cavity model and circuit theory concept. Theoretical result shows close agreement with simulated results. Variation in resonant frequency with air gap height and inner patch radius...
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