Development of a radial combiner-a tribute to Nathan Marcuvitz

Marcuvitz played a key coordinating role in his classic book The Waveguide Handbook, which had an enormous impact on developing the microwave field. The Waveguide Handbook is the most important and most widely used book in the history of the microwave field. The book contained the largest collection of theoretical expressions for waveguide discontinuities available anywhere and, in this respect, it is still unsurpassed. 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.