Bandwidth Enhancement of A 2×2 Triangular Microstrip Patch Antenna Using Triangular Lattice Ebgs in the Ground Plane
نویسندگان
چکیده
Triangular latt ice Electromagnetic Band-Gap (EBG) St ructure in the ground plane is used in the design of a Triangular Microstrip Patch Antenna (TMPA) Array to improve its bandwidth. The patch elements are equilateral t riangular in shape. The Equilateral Triangular Microstrip Patch Antenna (ETMPA) Array design has four patch elements in 2×2 form with ground plane having circular cutouts forming triangular lattice EBG. The ETMPA array with EBG provides better antenna gain and bandwidth. The ETMPA Array with EBG gives an impedance bandwidth of 16.76GHz and a percentage bandwidth of 110% while ETMPA Array gives an impedance bandwidth of 2.46GHz and a percentage bandwidth of 17.7%, thus an increment of approximately 500% in impedance bandwidth is observed. The achieved bandwidth of the ETMPA array with EBG extends from 2.7034GHz to 19.4649GHz. The array gain with EBG structure improved to 14.6dBi which is 9.7dBi for ETMPA array without EBG.
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