Patent ID: 7158082

Claim:
A low-height multiband antenna disposed on a metallic base surface, the antenna comprising at least first and second substantially flat antenna elements for respectively operating on first and second frequency bands that are offset with respect to one another, the first and second flat antenna elements being aligned to be substantially parallel to one another, one of the first and second antenna elements being disposed closer to the base surface than the other of the first and second antenna elements, the first and second antenna elements having different sizes, the first flat antenna element being dimensioned for transmission in a first frequency band range, the second flat antenna element being dimensioned for transmission in a second frequency band range lower than said first frequency band range, at least one short circuit provided between said at least first and second flat antenna elements the first flat antenna element being short-circuited via the short circuit to the second flat antenna element, and the second flat antenna element being connected via a short circuit to the metallic base surface, the multiband antenna being formed as an integral metal part, the multiband antenna having, as an integral component, at least said first and second flat antenna elements and the short circuit provided between said at least first and second flat antenna elements, at least one of the first and second flat antenna elements having adjacent thereto, plural antenna element surface antenna element vanes which are electrically connected to associated antenna element surfaces, the first flat antenna element being disposed between said plural antenna element vanes in a plan view of the antenna, the first and second flat antenna element being arranged to be substantially coplanar; and an integrally connected feed line a coupled to said first and second flat antenna elements.