A hearing aid includes an assembly, the assembly comprising: a microphone for reception of sound and conversion of the received sound into a corresponding first audio signal; a signal processor configured to provide a second audio signal compensating a hearing loss of a user of the hearing aid, wherein the second audio signal is based on the first audio signal; a wireless communication unit; and an antenna system comprising a first feeding structure and a radiating segment; wherein the first feeding structure is connected or coupled to the wireless communication unit; and wherein at least a part of the first feeding structure is galvanically disconnected from the radiating segment, and is capactively coupled to the radiating segment.