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Mutiphase oscillator using dissipatively coupled transmission lines with regularly spaced tunnel diodes
Author(s) -
Narahara Koichi
Publication year - 2017
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.2284
Subject(s) - line (geometry) , electric power transmission , diode , tunnel diode , transmission line , oscillation (cell signaling) , enhanced data rates for gsm evolution , synchronization (alternating current) , physics , signal edge , time domain , phase (matter) , topology (electrical circuits) , transmission (telecommunications) , control theory (sociology) , computer science , engineering , mathematics , telecommunications , optoelectronics , electrical engineering , chemistry , biochemistry , control (management) , quantum mechanics , artificial intelligence , analog signal , computer vision , geometry
Summary A generation scheme is proposed for multiphase oscillatory signals based on mutual synchronization of the oscillating pulse edges developed in point‐coupled transmission lines periodically loaded with tunnel diodes (TDs). When supplied with an appropriate voltage at the end of a TD line, a pulse edge is shown to exhibit a spatially extended limit‐cycle oscillation on the line. When two TD lines are dissipatively coupled, such edge oscillations are mutually synchronized such that two edges simultaneously pass the connecting cells. Based on this observation, the scheme employs multiple point‐coupled TD lines, wherein the first and last lines are linked at the same position. Its design criterion is obtained by applying the phase reduction method to the transmission equation of a TD line. In addition, several time‐domain calculations demonstrate the validity of the scheme. Copyright © 2016 John Wiley & Sons, Ltd.