Abstract: A strip line circuit assembly consisting of a first and second strip line ch comprised of three dielectric layers having conductor strips on either side of the center layer and ground planes on the outsides of the outer layers which sandwich the center layer except for an open central portion which turns through a 180.degree. curved bend. The three layer first and second layer strip lines are separated by the single layer central portion and are sandwiched between three holding plates. The center holding plate has a curved end extension containing axially spaced channels which receive the conductors of the center dielectric layer on the inside of the end. One of the outer two holding plates is placed upon each of the outer dielectric layers in contact with the ground planes on the outer surfaces of each layer.

Abstract: A stripline coupler exhibiting higher coupling coefficients and improved ttering properties in the plus 10 Ghz range, utilizes a section of discrete areal dimension in each of two tapered striplines, such that said sections form a discontinuity in the taper, in conjunction with perforations of the bilateral ground planes coincident with each section. The dielectric separating each stripline from the ground plane is modified in the region of the perforations to reduce the dielectric constant in the region.

Abstract: A microwave direction finding antenna interface is disclosed which is cape of operating over multioctave bandwidth with an upper frequency limit exceeding forty gigahertz. The antenna, feed circuit/transformer and arithmetic network have non-interrupted TEM electrical paths of strip transmission lines (striplines). Further, a process of fabricating the antenna, feed circuit/transformer and arithmetic network in conjunction with the support means is described.

Abstract: A unidirection circularly polarized dual armed spiral antenna of a stripl printed circuit configuration is disclosed. The antenna is powered by a planar, edge connected, balun. The radial arms may be configured to spiral in any one of a multiplicity of different patterns and are not limited solely to Archimedean or logarithmic spirals.

Abstract: A wideband direction finding system consisting of a spiral antenna and an ray of towel bar antennas coupled together and driven from a single source and designed to operate over a wide band of frequencies as a circularly-polarized, two-channel mono-pulse system.

Abstract: A stripline printed circuit power divider is disclosed disposed on opposite ides of a central dielectric substrate in a three substrate layered stripline orientation. An electrically coupled, coplanar, dual lead of the power divider disposed on opposite sides of the central dielectric substrate is joined into a single lead on one side of the substrate by diverting each coplanar lead and passing one lead through a hole in the dielectric to be joined with the other lead on a single surface of the dielectric.