Analysis of Frequency Notch Characteristics in Enhanced-Ultra-Wide-Band Compact Microstrip Patch Antenna
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A novel UWB microstrip antenna is proposed for C, X, and Ku bands wireless applications. An impedance bandwidth of 107.7% ranging from 4.5 to 15 GHz is achieved then it is improved to the value of 181.32% ranging from 1.2 to 24.5 GHz. Further, two SRR are embedded to achieve two notch bands at 3.7 and 4.2 GHz for avoiding the interference at these frequencies. Gain of proposed antenna is varying between 2 to 6 dBi within the range of operation. Analysis of SRR is presented and design procedure of antenna as well as notch band is proposed. Analysis is done by Ansoft HFSS which is based on finite element method and simulated results are verified with measured results of fabricated prototypes.
KeywordsBandwidth enhancement Microstrip antenna Metamaterials Notch band Ultra-wide band (UWB) antenna
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