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|Title:||Low-RCS and beam-steerable dipole array using absorptive frequency-selective reflection structures||Authors:||Huang, Hao
Omar, Ahmed Abdelmottaleb
|Keywords:||Engineering::Electrical and electronic engineering||Issue Date:||2020||Source:||Huang, H., Omar, A. A. & Shen, Z. (2020). Low-RCS and beam-steerable dipole array using absorptive frequency-selective reflection structures. IEEE Transactions On Antennas and Propagation, 68(3), 2457-2462. https://dx.doi.org/10.1109/TAP.2019.2943322||Journal:||IEEE Transactions on Antennas and Propagation||Abstract:||This communication presents an approach to design a beam-steerable dipole array with low radar cross section (RCS). A 2-D periodical array of dipole antennas is colocated with absorptive frequency-selective reflection (AFSR) structures to effectively reduce the out-of-band RCS and maintain high gain at the in-band frequencies. The AFSR structures consist of 3-D bandstop frequency-selective structure (FSS) and pyramidal-shaped absorbers to provide a reflection band for the dipole array with enhanced front-to-back ratio. Compared with the reference array, the radiation performance of the proposed array is maintained with an aperture efficiency of 70% and a measured peak gain of 21.5 dBi. The beam-steering angle is up to ±45°. Meanwhile, more than 10 dB two-sided out-of-band RCS reduction is achieved with a bandwidth of 96.5% and 30% for copolarization and 142% for cross polarization, and the in-band RCS is unchanged.||URI:||https://hdl.handle.net/10356/154632||ISSN:||0018-926X||DOI:||10.1109/TAP.2019.2943322||Rights:||© 2019 IEEE. All rights reserved.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||EEE Journal Articles|
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