Abstract: A radio frequency energy radar system having a transmitting antenna system for transmitting and directing CW radio frequency energy toward a target. A receiving antenna system, adjacent to the transmitting antenna system, receives portions of the transmitted CW radio frequency energy reflected by the target. The receiving antenna system including a plurality of antenna elements disposed along a path and arranged to provide an antenna pattern having a main lobe antenna pattern directed toward the target and adjacent side lobe antenna pattern. A septum is positioned between the transmitting antenna and the receiving antenna, for shielding unwanted portions of the transmitted CW radio frequency energy from passing directly from the transmitting antenna to the antenna elements of the receiving antenna The shielding means terminates along an edge positioned in a region forward of the antenna elements.

Abstract: Microwave apparatus fabricated in stripline is shown to be made up of (a) printed circuitry to form a directional coupler on both sides of a sheet of a dielectric material effectively suspended in space between a pair of ground planes, the printed circuitry being connected by shorting posts passing through the dielectric material; and (b) a matching section, formed from a dielectric material having a dielectric constant greater than unity, overlying portions of the printed circuitry.