Demystifying Electromagnetic Compatibility in Modern Aircraft Systems
DOI:
https://doi.org/10.22399/ijcesen.5357Keywords:
Electromagnetic Compatibility, High-Intensity Radiated Fields, More Electric Aircraft, Distributed Electric Propulsion, Electromagnetic Interference MarginAbstract
Electromagnetic compatibility in modern aircraft systems is an integration-driven engineering discipline whose importance grows directly with the electrification of onboard architectures. As aviation transitions toward more-electric configurations, the density of switching power electronics rises sharply, multiplying broadband interference sources across airframes that simultaneously demand higher functional reliability from safety-critical avionics, navigation, and flight control systems. This article examines electromagnetic interference mechanisms, source characteristics, functional degradation effects, margin quantification, the gap between equipment-level and system-level qualification, common misconceptions, and design principles applicable across engineering disciplines. Evidence drawn from documented failure events, controlled susceptibility testing, cable resonance characterization, and hybrid power system validation shows that passing qualification tests does not, on its own, prevent installed-system EMC problems, and that adequate compatibility margins must be engineered proactively through integrated, multidisciplinary design decisions made from the earliest stages of aircraft development.
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