NDLI: Circular configuration of perforated dielectrics for ultra-broadband, wide-angle, and polarisation-insensitive monostatic/bistatic RCS reduction

Content Provider	IET Digital Library
Author	Rajabalipanah, Hamid Hemmati, Hossein Abdolali, Ali Amirhosseini, Mohammad Khalaj
Abstract	Here, a new strategy of ultra-broadband monostatic and bistatic radar cross-section reduction (RCSR) was theoretically investigated. A circular configuration of perforated dielectrics, as the coating layer, was designed to have full control on the bistatic RCS signatures of flat metallic objects. Using the proposed phase cancellation method, a customised level of bistatic RCSR (BRR) as well as operating frequency bandwidth were interpretively achieved. The presented study offered a robust and straightforward RCSR technique which does not rely on conventional blind optimisations. The coating layer was capable of reducing the monostatic and BRR of >10 dB in a broad frequency range from 8.3 to 23.1 GHz (BW = 94%). The results were significantly improved compared to those of preceding researches. Besides, unlike the preceding researches, the performance of the designed coating layer was analytically justified under TE and TM polarisations of oblique incidences. A good agreement was observed between numerical simulations and theoretical predictions, confirming the polarisation-independent feature of the designed stealth coating layer for incident angles up to 60 ∘ . These superior performances and the flexibility of design guarantee the applicability of the proposed RCSR approach for various stealth applications.
Starting Page	1821
Ending Page	1827
Page Count	7
ISSN	17518725
Volume Number	12
e-ISSN	17518733
Issue Number	Issue 11, Sep (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/12/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2018.0072
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2018-04-24
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Bistatic Radar Cross-section Reduction Bistatic RCS Signatures Bistatic RCSR Technique Circular Configuration Coatings Dielectric Property Electromagnetic Wave Polarisation Flat Metallic Objects Frequency 8.3 GHz to 23.1 GHz Incident Angles Numerical Analysis Numerical Method Numerical Simulation Oblique Incidences Operating Frequency Bandwidth Perforated Dielectrics Phase Cancellation Method Polarisation-independent Feature Polarisation-insensitive Monostatic-bistatic RCS Reduction Radar Cross Section Radar Theory Stealth Coating Layer TE Polarisation TM Polarisation Ultra-broadband-insensitive Monostatic-bistatic RCS Reduction Wide-angle-insensitive Monostatic-bistatic RCS Reduction
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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