US Patent 9153856 Embedded antenna structures

An electronic device may be provided with antenna structures that are embedded in a dielectric such as plastic. The plastic may be molded over the antenna structures using molding equipment. Antenna structures may be embedded in molded plastic structures such as plastic electronic device housing structures. The plastic electronic device housing structures may form housing structures such as housing wall structures. The antenna structures may be embedded within the housing wall structures in the vicinity of an exterior surface of the housing wall structures. Embedded antenna structures may also be mounted under other dielectric structures such portions of a display cover layer.