Abstract: A beam lead rod assembly for incorporation into an electromagnetic wave coaxial transmission line structure. The rod assembly comprises a beam lead holder and a beam lead device. The holder includes a cylindrical body of a dielectric material and a conductive coating surrounding each end portion of the body for conductively connecting each side of the body to a different portion of the transmission line. The conductive regions are separated by a circumferential gap so that there is no conduction between the two conductive regions. The beam lead device is disposed across the gap with opposite beam leads being conductively connected to opposite conductive regions.

Abstract: A TEM mode strip line directional coupler utilizing an outer conductor having a dielectric slab filled cross section with photo-etched center conductors. The center conductors are arranged to form a coupling portion whose opposite ends define diverging conductors. At least one conductive element, photo-etched simultaneously with the center conductors, of generally arrow-shaped configuration having its end portion immediately adjacent and in between the diverging conductors facing the coupling portion to increase the directivity of the coupler.