The Theory and Experimental Behaviour of Right-Angled Junctions in Rectangular-Section Wave Guides

The paper opens with a general theoretical analysis of a wave-guide junction of n members in terms of an equivalent transmission line system. This is then applied to the particular case of a right-angled junction in a guide of rectangular section excited in the H01 mode. The behaviour is expressed in terms of six parameters, the values of which have been calculated over a range of wavelengths around 10 cm and determined experimentally at four points within this range. A description of the experimental technique employed is given, and an assessment made of the order of accuracy attained in the measurements.