Patent ID: 6504109
Filing Date: 2003-01-07
Classification: H01P

Abstract:
Micro-strip circuit (1) comprising a dielectric substrate (2, 16) having a top layer of conductive strips (5) being provided over or on top of the dielectric substrate and a ground plate (8) being provided under the lossy substrate,the micro-strip circuit comprising an intermediate member (17, 18) being formed under at least some of the strips (5) forming the top layer circuit, the intermediate member having a width being less than the width of the top layer strip and extending along at least sections of the circuit formed by the top layer strips (5), the intermediate member (17, 18) being surrounded laterally by a dielectric medium or material, wherein the dielectric substrate is a lossy material and comprises at least two layers (2, 16), the intermediate member being formed of a conductive material and being arranged between the at least two layers of dielectric substrate, whereby dielectric substrate surrounds the intermediate member (17, 18) laterally.