ORBIT ANGULAR MOTION AMOUNT MODE PSEUDO TRAVELING WAVE RESONATOR AND ORBIT ANGULAR MOTION AMOUNT ANTENNA DEVICE

摘要

To provide an OAM mode pseudo traveling wave resonator capable of switching the mode degree easily while fixing the operation frequency, and to provide an OAM antenna device using the same.SOLUTION: A pseudo traveling wave resonator is constituted by ring shape cascade connection of N multiple unit cells having a microwave transmission line part, a series branch circuit containing a capacitive element equivalently, and at least one parallel branch circuit branched from the transmission line part, respectively, and containing an inductive element equivalently, and operates a non-reciprocal transmission line device having forward and inverse propagation constants, different from each other, in a resonant condition. The transmission line part of each unit cell has spontaneous magnetization so as to have gyroscope anisotropy by being magnetized in a direction different from the microwave propagation direction, or magnetized by external magnetic field, and the parallel branch circuit is an inductive stub circuit connected to be inserted into a non-reciprocal transmission line device, and operates in the OAM mode with mode degree 1.SELECTED DRAWING: Figure 4A