Design and analysis of C/Ka/V multiband miniaturised antenna for next generation network applications
by Umar Farooq; Ghulam Mohammad Rather
International Journal of Computer Aided Engineering and Technology (IJCAET), Vol. 17, No. 2, 2022

Abstract: In next generation networks, hand-held devices will be operating at millimetre wave (MMW) band to support high data rate and low latency features. Also, in order to coexist with the current communication systems like Wi-Fi, WiMax and 4G, these devices need to operate at low frequency bands as well. This requires the multiband antenna systems that can operate at MMW band as well as L/S/C/X band. This paper presents a novel configuration for multiband miniaturised rectangular microstrip antenna (RMSA) for 5.5 GHz (C band), 33.5 GHz (Ka band) and 62.5 GHz (V band) operations. The proposed design utilises the antenna at lower frequency band as the ground plane for a 2 × 2 Ka band antenna array. The V band is excited by incorporating the symmetrical slots at optimum position in the elements of Ka band antenna array. The antenna performs quite well with negligible interference between the three operating bands and achieves a return loss of -15.63 dB, -19.35 dB and -21.05 dB respectively. The antenna achieves a bandwidth (|S11| < -10 dB) of 6.54%, 4.78% and 3.40% at 5.5 GHz, 33.5 GHz and 62.5 GHz respectively and provides a reasonable gain of 5.23 dB at 5.5 GHz, 6.02 dB at 33.5 GHz and 5.18 dB at 62.5 GHz.

Online publication date: Wed, 24-Aug-2022

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