Patent ID: 8810470

Claim:
A dual band antenna, in particular for satellite navigation applications, comprising a multilayer structure provided with an upper, first antenna element for receiving electromagnetic waves having a frequency in a first frequency band, a lower, second antenna element arranged below the first antenna element for receiving electromagnetic waves having a frequency in a second frequency band, two electrically conductive ground layers, a first one and a second one, arranged one above the other and both arranged below the lower, second antenna element, and a conducting-path layer having at least one first conductive path for electromagnetically coupling with the first antenna element and having at least one second conductive path for electromagnetically coupling with the second antenna element, the first ground layer facing the lower, second antenna element comprising an aperture, below which the at least one second conductive path extends, the at least one first conductive path being connected to the upper, first antenna element by means of an electrical conductor which extends through the first ground layer and the lower, second antenna element and is electrically insulated from the first ground layer and the lower second antenna element, a first line adjustment element coupled with the at least one first conductive path for suppressing the coupling, into the first conductive path, of electromagnetic waves having a frequency in the second frequency band which are received via the lower, second antenna element and coupled into the electrical conductor, a second line adjustment element coupled with the at least one second conductive path for suppressing the coupling, into the second conductive path, of electromagnetic waves in the first frequency band which are received via the upper, first antenna element, and a plurality of dielectric layers arranged between the antenna elements, the ground layers, and the conducting-path layer that are located one above the other.