In-Band RCS Reduction and Gain Enhancement for a Patch Antenna Array by Using a 1-D Periodic Metasurface Reflector

Zi Jian Han; Wei Song; Xin Qing Sheng

doi:10.1109/TAP.2019.2905989

In-Band RCS Reduction and Gain Enhancement for a Patch Antenna Array by Using a 1-D Periodic Metasurface Reflector

Zi Jian Han^*, Wei Song, Xin Qing Sheng

^*Corresponding author for this work

School of Integrated Circuits and Electronics

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

A low-profile metasurface (MS) with low scattering performance for both the x - and y -polarizations is designed based on far-field cancellation. Different from a conventional MS with a low radar cross section that uses chessboard structures, this design makes use of a 1-D MS. Without requiring periodicity in two dimensions, the proposed MS can thus be integrated more flexibly in many applications. Based on the proposed MS, a patch antenna array is proposed. Full-wave simulations and measurements show that, by incorporating the proposed MS, the scattering of the antenna array can be reduced by more than 5 dB over the antenna operating frequency band from 10.7 to 12 GHz (11.45%) under normal incidence. Furthermore, when the array radiates, parasitic radiation can be excited from the slots of the MS, which enhances the boresight gain of the array.

Original language	English
Article number	8668798
Pages (from-to)	4269-4274
Number of pages	6
Journal	IEEE Transactions on Antennas and Propagation
Volume	67
Issue number	6
DOIs	https://doi.org/10.1109/TAP.2019.2905989
Publication status	Published - Jun 2019

Keywords

Antenna array
gain enhancement
periodic metamaterials
radar cross section (RCS) reduction

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10.1109/TAP.2019.2905989

Cite this

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title = "In-Band RCS Reduction and Gain Enhancement for a Patch Antenna Array by Using a 1-D Periodic Metasurface Reflector",

abstract = "A low-profile metasurface (MS) with low scattering performance for both the x - and y -polarizations is designed based on far-field cancellation. Different from a conventional MS with a low radar cross section that uses chessboard structures, this design makes use of a 1-D MS. Without requiring periodicity in two dimensions, the proposed MS can thus be integrated more flexibly in many applications. Based on the proposed MS, a patch antenna array is proposed. Full-wave simulations and measurements show that, by incorporating the proposed MS, the scattering of the antenna array can be reduced by more than 5 dB over the antenna operating frequency band from 10.7 to 12 GHz (11.45\%) under normal incidence. Furthermore, when the array radiates, parasitic radiation can be excited from the slots of the MS, which enhances the boresight gain of the array.",

keywords = "Antenna array, gain enhancement, periodic metamaterials, radar cross section (RCS) reduction",

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AU - Han, Zi Jian

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AU - Sheng, Xin Qing

PY - 2019/6

Y1 - 2019/6

N2 - A low-profile metasurface (MS) with low scattering performance for both the x - and y -polarizations is designed based on far-field cancellation. Different from a conventional MS with a low radar cross section that uses chessboard structures, this design makes use of a 1-D MS. Without requiring periodicity in two dimensions, the proposed MS can thus be integrated more flexibly in many applications. Based on the proposed MS, a patch antenna array is proposed. Full-wave simulations and measurements show that, by incorporating the proposed MS, the scattering of the antenna array can be reduced by more than 5 dB over the antenna operating frequency band from 10.7 to 12 GHz (11.45%) under normal incidence. Furthermore, when the array radiates, parasitic radiation can be excited from the slots of the MS, which enhances the boresight gain of the array.

AB - A low-profile metasurface (MS) with low scattering performance for both the x - and y -polarizations is designed based on far-field cancellation. Different from a conventional MS with a low radar cross section that uses chessboard structures, this design makes use of a 1-D MS. Without requiring periodicity in two dimensions, the proposed MS can thus be integrated more flexibly in many applications. Based on the proposed MS, a patch antenna array is proposed. Full-wave simulations and measurements show that, by incorporating the proposed MS, the scattering of the antenna array can be reduced by more than 5 dB over the antenna operating frequency band from 10.7 to 12 GHz (11.45%) under normal incidence. Furthermore, when the array radiates, parasitic radiation can be excited from the slots of the MS, which enhances the boresight gain of the array.

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KW - gain enhancement

KW - periodic metamaterials

KW - radar cross section (RCS) reduction

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In-Band RCS Reduction and Gain Enhancement for a Patch Antenna Array by Using a 1-D Periodic Metasurface Reflector

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Keywords

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