Patent ID: 8669905

Claim:
A communication device, comprising: a wireless interface for enabling wireless transmission and/or reception at a predefined wavelength λ c to be established, the wireless interface including an antenna having a stacked structure; and a housing having an electrically conductive part, said housing being a structural part of the communication device enclosing and/or supporting components constituting the communication device, including electronic components of the communication device, wherein the antenna includes a first quarter wavelength patch, and a ground plane comprising an electrically conductive material, the stacked structure includes a first layer including the ground plane including an electrically conductive material, a second layer including an electrically insulating material, a third layer including a second patch including an electrically conductive material, the second patch being electrically connected to the ground plane, said second patch being adapted to constitute a quarter-wavelength antenna at said predefined wavelength λc, a fourth layer including an electrically insulating material, and a fifth layer comprising the first patch including an electrically conductive material, the first quarter wavelength patch is at least partially constituted by said electrically conductive part of the housing, the stacked structure is configured to provide that the first patch of the fifth layer is electromagnetically coupled to the second patch of the third layer, the second patch is a driven antenna, and the first patch is parasitically coupled to the second patch.