Development of a radial combiner - a tribute to Nathan Marcuvitz

Summary form only given, as follows. Marcuvitz played a key coordinating role in his classic book, ‘Waveguide Handbook’, which had an enormous impact on developing the microwave field. In a masterful summary, Marcuvitz described how these waveguide discontinuities can be represented rigorously in network form, how they can be measured accurately, and how they can be analyzed theoretically. An example of such impact is touched upon by the story of developing one component - the radial combiner.