The Short-Slot Hybrid Junction

This paper describes a novel high-performance x-band hybrid junction. Its over-ill dimensions are 1¾"×½×2". It consists of a suitably loaded gap in the narrow common wall between two it ½"×1" waveguides. Over the frequency range 8,500- to 9,600-mc per second power equality within ±0.25 decibels, isolation in excess of 30 decibels and a standing-wave ratio less than 1.07 may be obtained. The theory of the device is explained, and the particular advantages of this hybrid junction for a number of applications are outlined.