Open AccessA non-uniform excitation Antenna array with defected ground structures for Dual-band 5G mm-wave Applications
Author(s) -
Dinesh Kumar,
S. Suganthi
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1045/1/012042
Subject(s) - hfss , chebyshev filter , bandwidth (computing) , antenna (radio) , excitation , radiation pattern , optics , antenna array , materials science , microstrip antenna , physics , telecommunications , electrical engineering , computer science , engineering
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 ( ε r = 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.