Design and analysis of triple notch ultrawideband antenna using single slotted electromagnetic bandgap inspired structure

Anumoy Ghosh, Tapan Mandal and Santanu Das

Journal of Electromagnetic Waves and Applications, 2019, vol. 33, issue 11, 1391-1405

Abstract: A microstrip line fed pentagonal printed ultra wideband (UWB) monopole antenna with partial ground plane having triple notches is proposed. The realized antenna has an operating bandwidth (VSWR ≤ 2) ranging from 3.1 GHz and continuing beyond 12 GHz. A novel mushroom-shaped slotted electromagnetic bandgap (EBG) inspired structure is used near the feedline to introduce triple notches at CBRS (3.5–3.7) GHz, WLAN (5.15–5.725) GHz and X-band downlink satellite communication (7.25–7.75) GHz frequencies. The band notch characteristics are demonstrated with current distribution and impedance analysis. Further, the proposed structure has stable radiation patterns, gain and group delay in the UWB range except the notch frequencies. Finally, a prototype of the proposed antenna is fabricated and measured results are in good agreement with the simulated results.

Date: 2019
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DOI: 10.1080/09205071.2019.1609377

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