An embedded antenna is disclosed. The embedded antenna comprises a coaxial cable and a grounding connecting part. The coaxial cable comprises a center conductor, an insulating layer and an outer sheath. The center conductor comprises a signal transmission part and a radiating part. The radiating part electrically connects the signal transmission part and provides a resonance frequency. The insulating layer covers the signal transmission part and the radiating part. The outer sheath covers the signal transmission part but not the radiating part. The grounding connecting part electrically connects the system grounding part and the outer sheath.