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Coding Artificial Magnetic Conductor Ground and Their Application to High‐Gain, Wideband Radar Cross‐Section Reduction of a 2×2 Antenna Array
Author(s) -
Saleem Muhammad,
Saifullah Yasir
Publication year - 2021
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.202100088
Subject(s) - wideband , ground plane , optics , conductor , antenna (radio) , acoustics , bistatic radar , radar cross section , scattering , polarization (electrochemistry) , physics , materials science , radar , computer science , telecommunications , radar imaging , composite material , chemistry
A new technique is proposed for designing a low‐scattering 2 × 2 antenna array using strategic coding metasurface ground for wideband bistatic and monostatic backscattered energy level reduction. Two various artificial magnetic conductor (AMC) units cells are organized like a chessboard to obtain an effective 180° ± 37° reflection phase difference over a broadband frequency range. The low‐backscattering microstrip antenna array is achieved based on the destructive interference theory and diffusion property of AMC unit cells. Simulations show that the proposed antenna array has a considerable backscattering field level reduction of 4.7–18 GHz for both the x ‐ and y ‐polarization incident waves. It should also be noted that the maximum reduction of backscattered energy at a frequency of 7.2 GHz is −18 dB. The bistatic backscattering performance of the antenna is also given at different frequencies. Both a reference and a proposed prototype are fabricated, and the results are analyzed. Measurements of the fabricated prototype coincide well with simulations.