Implementation of EBG Configuration for Asymmetric Microstrip Antenna to Improve Radiation Properties
Keywords:Compact, Electromagnetic Band Gap (EBG) Configuration, Gain, Half Microstrip Antenna,
AbstractThe purpose of this paper is to achieve compact microstrip antenna with improved performance using uniform electromagnetic band-gap (EBG) configuration for S-band at 2.45 GHz. The proposed configuration was easy to develop and based on metallic surfaces without implementation of vertical holes (vias) or vertical connections. Initially, simple microstrip antenna of a square shape was designed which operated at 2.42 GHz. The original microstrip antenna was bisected along the vertical axis and optimized with respect to dimensional parameters for 2.45 GHz. Performance characteristics were checked by bisecting original square-shaped microstrip antenna to reduce it to half of its original size. The reduction area of radiating patched up to 52.77% of its original size with the cost gain. After the placement of circular EBG configuration integrated along the two edges of antenna, it retained its best performance characteristics with a simple design. However, the design validation prototype was subjected to experimentation. Results of the presented antenna exhibited better performance compared to the conventional antenna.
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