Patch-type antenna for receiving GPS signals has substrate with first large conducting surface on underside of insulating layer with smaller surface on top

摘要

The substrate (1) has a large rectangular conducting surface (2) earthed via the outer conductors of coaxial cables (5) and attached to the underside of a carrier layer (3) made of dielectric material. The carrier layer is of the same surface area as the large conducting surface. A smaller rectangular layer of conductor material (4) is placed on the central portion of the dielectric layer and is in contact (6) with the central conductors of separate cables carrying GPS and GSM-1800-signals. The central conductors pass through holes in the insulating layer.