With the development of electromagnetic detection and stealth technology,multi-base radars are widely used in anti-stealth systems,which impose dual requirements for high transmissivity and broadband stealth on antenna radomes of military communication platforms.Frequency selective rasorbers(FSRs)with integrated absorption and transmission functions exhibit excellent performance in reducing the radar cross section(RCS)of multi-static radars,making them crucial for addressing radar stealth issues.This paper provides a comprehensive review on transmission-absorption(T-A)FSRs,absorption-transmission(A-T)FSRs,and absorption-transmission-absorption(A-T-A)FSRs conducted by domestic and international scholars in recent years.Additionally,it also discusses the application of FSRs in radar stealth design and the opportunities and challenges it faces in future development.
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