Patent Number: 7,786,938

Title: Antenna, component and methods

Abstract: An antenna component (and antenna) with a dielectric substrate and a plurality of radiating antenna elements on the surface of the substrate. In one embodiment, the plurality comprises two (2) elements, each of them covering one of the opposite heads and part of the upper surface of the device. The upper surface between the elements comprises a slot. The lower edge of one of the antenna elements is galvanically coupled to the antenna feed conductor on a circuit board, and at another point to the ground plane, while the lower edge of the opposite antenna element, or the parasitic element, is galvanically coupled only to the ground plane. The parasitic element obtains its feed through the electromagnetic coupling over the slot, and both elements resonate at the operating frequency. Omni-directionality is also achieved. Losses associated with the substrate are low due to the simple field image in the substrate.

Inventors: Sorvala; Juha (Oulu, FI), Annamaa; Petteri (Oulunsalo, FI), Koskiniemi; Kimmo (Oulu, FI)

Assignee: Pulse Finland OY

International Classification: H01Q 1/38 (20060101)

Expiration Date: 8/31/12018