ANALYSIS TYPE / 05
transmission loss · FSS passband · structural integration
Overview
Designing radomes and frequency selective surfaces for antenna systems requiring aerodynamic enclosures, environmental protection, or frequency-selective filtering — optimising wall construction, FSS geometry, and structural integration to minimise antenna performance degradation.
Deliverables
Key Aspects
Computing electromagnetic transmission through radome wall constructions including monolithic, A-sandwich, and B-sandwich designs — evaluating insertion loss, beam deflection, and pattern distortion over scan angle and frequency.
Designing FSS geometries — patch, ring, cross, and Jerusalem cross elements — for required passband and stopband frequencies, with controlled bandwidth and out-of-band rejection tailored to the host antenna system.
Evaluating radome and FSS transmission characteristics for oblique incidence angles, both TE and TM polarisations, ensuring performance is maintained across the full operational field of regard.
Integrating RF performance requirements with structural load-bearing and environmental sealing requirements — balancing wall thickness, material selection, and FSS geometry for combined structural and electromagnetic compliance.
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