Abstract: A beam forming network comprising multi-deck circuitry with a plurality of levels within each deck formed by asymmetric striplines having a multiplicity of inner conductor levels. Interlevel coupling is accomplished with 3 dB couplers which power split signals incident thereto between transmission line levels and 0 dB interlevel couplers which transfer signals from one level to another without significant attenuation.

Abstract: Stripline interlevel couplers capable of power splitting signals incident thereto at a given level of a multilevel stripline circuit between a plurality of levels and of coupling such incident signals between levels substantially unattenuated.

Abstract: A multilevel stripline transformer which transforms the center strips of a one level stripline system to a common ground plane between levels of a multilevel stripline system. The upper and lower ground planes of the one level system are each ribboned to form extensions of inner strips of the one level system, which are converted alternately to upper and lower level microstrips having the common ground plane as its ground plane. These upper and lower level microstrips are then transformed to be the center conductors of the upper and lower levels of the multilevel stripline system.