Injection-locked rotary travelling pulse in closed tunnel-diode line for multiphase oscillation

Injection-locking properties of a rotary travelling pulse developed in a system of tunnel-diode (TD) transmission lines are characterised for multiphase oscillation. The system includes a unique TD line loop coupled with evenly spaced straight TD lines. The oscillating voltage edges in straight line...

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Bibliographic Details
Published in:Electronics letters 2019-02, Vol.55 (4), p.178-180
Main Authors: Higashi, M, Sawai, S, Narahara, K
Format: Article
Language:English
Subjects:
Circuits and systems
closed tunnel‐diode line
injection locked oscillators
injection‐locked rotary travelling pulse
multiphase oscillation
phase‐reduction theory
synchronisation
tunnel diodes
tunnel‐diode transmission lines
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Summary:Injection-locking properties of a rotary travelling pulse developed in a system of tunnel-diode (TD) transmission lines are characterised for multiphase oscillation. The system includes a unique TD line loop coupled with evenly spaced straight TD lines. The oscillating voltage edges in straight lines are synchronised to organise the rotary pulse on the closed one. Based on the phase-reduction theory, the authors determine where to connect an external oscillator for sufficient locking frequency range. Inherently, the travelling pulse can rotate on the loop in either clockwise or anti-clockwise fashion. The rotation frequency slightly depends on the rotation direction by the finite fluctuation of device parameter values. By matching the frequency of the external oscillator with one of such frequencies, the rotation direction is specified as required. These injection-locking properties are validated experimentally.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2018.7963