Design and Optimization of Multiband U Slots Microstrip Patch Antenna with DGS for Wireless Applications

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Provided by: The International Journal of Innovative Research in Computer and Communication Engineering
Topic: Mobility
Format: PDF
Four U-slot antennas are obtained by making four u slots in patch. Initially simple patch antenna is taken and four u slots are cut one by one to analyze effect. Initially single -shaped antenna is designed and results are obtained. This design is modified by cutting four U-slots to form u slot ring like structure. Further characteristics of antenna are modified by applying Defected Ground Structure (DGS) to antenna. By applying plus shape DGS, antenna resonated at 4.6GHz, 6.7GHz and 8.9GHz with return loss of -23.66, -30.80 and -12.80dB, gain of 1.37dBi, 3.37dBi and 1.78dBi and bandwidth of 300MHz, 1300MHz and 300MHz.
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