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ABSTRACT The lattice loop formed by adjacent coupling of tunnel diode LC oscillators has been shown to generate topological defects due to broken mirror symmetry, which rotate in the opposite direction to the rotating pulse. Leveraging the injection locking of the rotational dynamics of these topological defects can lead to a subharmonic injection locking scheme with a large division ratio. This paper aims to enhance the design by elucidating the relationship between loop size, the number of topological defects, and the division ratio. Furthermore, we perform bifurcation analysis of the injection locking system, demonstrating that when the external signal strength reaches a certain threshold, defect pinning by the external signal occurs, leading to an extension of the lock range. The dynamics of topological defects are well suited to the so‐called progressive multiphase injection locking. In this paper, we clarify the degree of lock range extension achieved by introducing this technique. [ABSTRACT FROM AUTHOR]

This study proposes a scheme for high‐order subharmonic injection locking in a tunnel diode oscillator lattice loop. The loop supports a rotary pulse resulting from mutual synchronization between the component oscillators. A topological defect in the form of a dislocation is observed to rotate within the loop in a direction opposite to that of the background rotary pulse. The defect is mutually synchronized with the rotary pulse. In addition, the defect velocity is considerably slower than that of the pulse. Upon injection locking of the rotary behavior of the defect using an external oscillator, the rotary pulse can also be locked via the same oscillator. This facilitates a high‐order subharmonic injection locking of the oscillating pulse through the intermediation of a topological defect. Herein, the operation principle is described, followed by its experimental validation. [ABSTRACT FROM AUTHOR]