Injection‐locked rotary travelling pulse in closed tunnel‐diode line for multiphase oscillation. Issue 4 (1st February 2019)

• Record Type: Journal Article
• Authors: Higashi, M.; Sawai, S.; Narahara, K.
• Is Part Of: Electronics letters. Volume 55:Issue 4(2019)
• Page Start: 178
• Page End: 180
• Publication Date: 2019-02-01
• Subjects: injection locked oscillators -- synchronisation -- tunnel diodes; tunnel‐diode transmission lines -- multiphase oscillation -- phase‐reduction theory -- closed tunnel‐diode line -- injection‐locked rotary travelling pulse; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2018.7963
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : 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.