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Low-Profile, Electrically Small, Ultrawideband Antenna Enabled With an Inductive Grid Array Metasurface.

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Title: Low-Profile, Electrically Small, Ultrawideband Antenna Enabled With an Inductive Grid Array Metasurface.
Authors: Lin, Qingli1, Tang, Ming-Chun1 tmc_212@163.com, Chen, Xiaoming1, Yi, Da1, Li, Mei1, Ziolkowski, Richard W.2 richard.ziolkowski@uts.edu.au
Source: IEEE Transactions on Antennas & Propagation. Aug2022, Vol. 70 Issue 8, p7152-7157. 6p.
Subjects: Ultra-wideband antennas, Microgrids, Antenna arrays, Dipole antennas
Abstract: A low-profile, electrically small, ultrawideband (UWB) antenna enabled with a grid array metasurface is presented. The design incorporates a driven dipole, an electric near-field resonant parasitic (NFRP) element, and a grid array structure which operates as an inductive metasurface. The NFRP element is an Egyptian axe dipole (EAD) that is excited by the driven dipole. This combination itself is an electrically small NFRP dipole antenna. In contrast to previous versions, its operation in both its first and third resonant modes is established. The presence of the grid, which consists of identical interconnected rectangular loops, then provides a new dipole mode and facilitates the reduction of the frequency ratio of the NFRP dipole’s modes. The resulting overlap of these three resonant modes yields the UWB operation. The electrically small (ka = 0.92), low-profile ($0.003\lambda _{0}$) antenna exhibits uniform radiation patterns and stable and high radiation efficiency (RE) performance characteristics. The antenna was optimized, fabricated, and tested. The measured results, in good agreement with their simulated values, demonstrate that the antenna yields an ultrawide, 67.7%, −10 dB impedance bandwidth with stable realized gain (RG) values, ~1.6 dBi, and high RE values, RE >77%, over its entire operational bandwidth. [ABSTRACT FROM AUTHOR]
Copyright of IEEE Transactions on Antennas & Propagation is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 159041278
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  Label: Title
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  Data: Low-Profile, Electrically Small, Ultrawideband Antenna Enabled With an Inductive Grid Array Metasurface.
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  Data: <searchLink fieldCode="AR" term="%22Lin%2C+Qingli%22">Lin, Qingli</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Tang%2C+Ming-Chun%22">Tang, Ming-Chun</searchLink><relatesTo>1</relatesTo><i> tmc_212@163.com</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+Xiaoming%22">Chen, Xiaoming</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yi%2C+Da%22">Yi, Da</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Li%2C+Mei%22">Li, Mei</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ziolkowski%2C+Richard+W%2E%22">Ziolkowski, Richard W.</searchLink><relatesTo>2</relatesTo><i> richard.ziolkowski@uts.edu.au</i>
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  Data: <searchLink fieldCode="JN" term="%22IEEE+Transactions+on+Antennas+%26+Propagation%22">IEEE Transactions on Antennas & Propagation</searchLink>. Aug2022, Vol. 70 Issue 8, p7152-7157. 6p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Ultra-wideband+antennas%22">Ultra-wideband antennas</searchLink><br /><searchLink fieldCode="DE" term="%22Microgrids%22">Microgrids</searchLink><br /><searchLink fieldCode="DE" term="%22Antenna+arrays%22">Antenna arrays</searchLink><br /><searchLink fieldCode="DE" term="%22Dipole+antennas%22">Dipole antennas</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A low-profile, electrically small, ultrawideband (UWB) antenna enabled with a grid array metasurface is presented. The design incorporates a driven dipole, an electric near-field resonant parasitic (NFRP) element, and a grid array structure which operates as an inductive metasurface. The NFRP element is an Egyptian axe dipole (EAD) that is excited by the driven dipole. This combination itself is an electrically small NFRP dipole antenna. In contrast to previous versions, its operation in both its first and third resonant modes is established. The presence of the grid, which consists of identical interconnected rectangular loops, then provides a new dipole mode and facilitates the reduction of the frequency ratio of the NFRP dipole’s modes. The resulting overlap of these three resonant modes yields the UWB operation. The electrically small (ka = 0.92), low-profile ($0.003\lambda _{0}$) antenna exhibits uniform radiation patterns and stable and high radiation efficiency (RE) performance characteristics. The antenna was optimized, fabricated, and tested. The measured results, in good agreement with their simulated values, demonstrate that the antenna yields an ultrawide, 67.7%, −10 dB impedance bandwidth with stable realized gain (RG) values, ~1.6 dBi, and high RE values, RE >77%, over its entire operational bandwidth. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of IEEE Transactions on Antennas & Propagation is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1109/TAP.2022.3145459
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        Text: English
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        PageCount: 6
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      – SubjectFull: Microgrids
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      – SubjectFull: Antenna arrays
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      – TitleFull: Low-Profile, Electrically Small, Ultrawideband Antenna Enabled With an Inductive Grid Array Metasurface.
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            NameFull: Lin, Qingli
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            NameFull: Tang, Ming-Chun
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              Text: Aug2022
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