First circulation condition of E-plane circulator using single-prism resonator

The operation of E- or H-plane circulators rest on the use of either a single or a pair of re-entrant turnstile resonators. The purpose of this work is to give the mode chart of an E-plane arrangement using a single-prism resonator in WR75. The susceptance slope parameter of the device is separately summarized. The paper therefore provides a complete statement of the first circulation condition of this type of circulator.