Norman window slot antenna with sectoral feed backed by linear phase reflector for ultra wideband applications
An ultra wideband (UWB) slot antenna is proposed, developed, and experimentally validated in this article. The Norman window‐shaped UWB slot antenna demonstrates stable radiation characteristics in both directions—zenith (θ = 0°) and nadir (θ = 180°) over the entire UWB frequency range (3.1–10.6 GHz...
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Published in | International journal of RF and microwave computer-aided engineering Vol. 32; no. 12 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Hoboken, USA
John Wiley & Sons, Inc
01.12.2022
Hindawi Limited |
Subjects | |
Online Access | Get full text |
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Summary: | An ultra wideband (UWB) slot antenna is proposed, developed, and experimentally validated in this article. The Norman window‐shaped UWB slot antenna demonstrates stable radiation characteristics in both directions—zenith (θ = 0°) and nadir (θ = 180°) over the entire UWB frequency range (3.1–10.6 GHz) as observed in both simulations and experiments. A linear phase reflecting UWB frequency selective surface (FSS) is proposed by printing two orthogonal layers of pair of double rectangular loops on the same side of dielectric substrate as a merged frequency selective surface (MFSS). The UWB MFSS is then loaded with the slot antenna and the impact of MFSS on the impedance and radiation characteristics in different configurations of antenna and MFSS together is studied. One configuration with optimum solution is developed for experimental validations followed by the analysis of its radiation characteristics. The proposed antenna demonstrates a directional radiation pattern due to suppression of back lobe radiation when integrated with the UWB MFSS. The proposed antenna demonstrates maximum gain of 7.86 dB with a gain enhancement of 3.6 dB in boresight (θ = 0°) direction when MFSS is applied as a reflector to opposite side of the antenna slot. |
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Bibliography: | Funding information Department of Science and Technology, India, Grant/Award Number: SR/FST/ETI‐346/2013 |
ISSN: | 1096-4290 1099-047X |
DOI: | 10.1002/mmce.23433 |