Abstract
This paper presents design and simulation of a low-cost 5G Millimeter-wave planar antenna with defected ground structure operating in the Ka-band portions of millimeter-wave. The antenna resonates at multiple frequencies of Ka-band especially at 27.80 GHz, 30.86 GHz and 33.74 GHz with a return loss of −21.41 dB, −24.03 dB and −22.27 dB, respectively, and has an impedance bandwidth of 53.5%. The presented antenna has been designed on a low cost FR4 substrate with a dielectric K value of 4.4 and a dissipation value of 0.004. The overall profile of the designed structure is 30 × 40 × 0.8 mm3. The antenna proposed is a compact structure with a peak gain achievement of 3.79 dBi and suits best for the employment with 5G mobile devices and gadgets. Other parameters such as radiation pattern, VSWR, polar plot and surface current density have also been discussed. The well performance of the presented antenna with reference to the return loss (S11), peak gain and associated radiation pattern makes it a sterling and compact design antenna for use in the 5G Millimeter-Wave mobile devices.
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