A Wide-Band Rectangular-To-Circular Mode Transducer for Millimeter Waves (Correspondence)

Mode transducers are used in microwave transmission systems to transform a certain mode of one waveguide into a predetermined mode of another waveguide. Of particular importance is the transformation from the rectangular TE/sub 10/ mode to the circular TE/sub 01/ mode because the circular mode has a low transmission loss and is frequently used where long waveguide runs are necessary.