volume | PIER Journals

Abstract

A wideband coplanar waveguide (CPW) fed monopole antenna designed for Wi-Fi5 and Wi-Fi6 applications is proposed. The proposed antenna (main radiator) has a designed footprint of only 20 × 8.7 × 0.4 mm³, which is composed of an oval-shaped ring radiator with three concentric rings and a double-T structure loaded with a J-shaped slot. The main novelty of this work is that the measured wideband operation of 34.5% (5.15-7.29 GHz) is contributed by only a single resonance at 6.2 GHz, conforming to the bandwidth requirement of Wi-Fi5 (5.15-5.85 GHz) and Wi-Fi6 (5.925-7.125 GHz). Furthermore, the proposed antenna also exhibits good radiation characteristics, including a gain around 2.25 dBi, a radiation efficiency above 80%, a total efficiency above 70%, and omnidirectional radiation patterns with a low magnitude of cross polarization throughout the bands of interest.

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12. Kulkarni, J., N. Kulkarni, and A. Desai, "Development of H-shaped monopole antenna for IEEE 802.11a and HIPERLAN 2 applications in the laptop computer," Int. J. RF Microw. Comput. Aided Eng., Vol. 30, No. 7, 1-14, 2020.
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15. Kulkarni, J., "An ultra-thin, dual band, sub 6GHz, 5G and WLAN antenna for next generation laptop computers," Circuit World, Vol. 45, 363-370, 2020.
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16. Sim, C., H. Liu, and C. Huang, "Wideband MIMO antenna array design for future mobile devices operating in the 5G NR frequency bands n77/n78/n79 and LTE band 46," IEEE Antennas and Wireless Propagation Letters, Vol. 19, 74-78, 2020.
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17. Kulkarni, J., A. Desai, and C. Y. D. Sim, "Wideband four-port MIMO antenna array with high isolation for future wireless systems," Int. J. Electron. Comm. (AEU), 2020.

Dr. Jayshri Kulkarni

Prof. Chow-Yen-Desmond Sim