Author:
Shashi Kumar D,Suganthi S
Abstract
Abstract
In this paper, the authors present a non-uniform excitation antenna array with defected ground structures for 28GHz and 40GHz mm-wave applications. The proposed antenna array is simulated using HFSS Ver. 18.2 to analyze the radiation and reflection characteristics. Authors used RT Duroid (εr
= 2.2) with a thickness of 0.782 mm to design the antenna array. To improve the gain and bandwidth, Defected Ground structures are used in the proposed design. Use of Dolph Chebyshev distribution of excitation amplitudes miniaturized the antenna array. The proposed design exhibited a fractional BW of 23.33% and 5.56% at 28GHz and 40 GHz respectively. A peak gain of 8.88 dB and 7.7 dB at 28 GHz and 40 GHz respectively is observed in the simulation results.
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