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The concept for a wideband, embedded/conformal antenna subsystem is presented. A multilayer radome not only protects the antenna from hostile environments, but is also designed to sustain aircraft dynamic loading. The radiating element consists of a planar, dual-flared slot capable of high-performance, multioctave operation. Advanced materials are currently being developed to enhance the low profile and efficient, wideband performance of the radiating element. INTRODUCTIONFuture manned aircraft will require 4ir steradian coverage to insure overall situational awareness, such as communication, navigation, terrain avoidance, near-object detection and missile threats. To provide this coverage, a discrete number of wideband, multifunction, conformal, shared apertures will need to be located strategically across the aircraft surface and to be coordinated functionally.