Bandwidth and Gain Enhancement Techniques of DRA Antenna
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This paper presents the investigation done on three DRA geometry to enhance gain and bandwidth. The three geometry consists of Single Rectangular DRA, two-segment Rectangular DRA, and DRA with superstrate structure. The three designs resonants at a frequency of 5.13 GHz, 5.21 GHz and 5.80 GHz, and 6.708 GHz respectively. All the designs are investigated in Ansoft HFSS. The reflection coefficient and radiation pattern of all the designs are presented. The superstrate design provides a maximum bandwidth of 1.08 GHz and gain of 8.80 dB.
KeywordsDRA Gain Radiation pattern Bandwidth
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