Optimal design method realizing the maximal limit of injection-locking and its applications.

2017 Fiscal Year Final Research Report

• Project/Area Number: 26286086
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Computational science
• Research Institution: The University of Electro-Communications
• Principal Investigator: Tanaka Hisaaki 電気通信大学, 大学院情報理工学研究科, 准教授 (20334584)
• Co-Investigator(Kenkyū-buntansha): 徳田 功 立命館大学, 理工学部, 教授 (00261389) ; 関屋 大雄 千葉大学, 大学院工学研究院, 教授 (20334203) ; 福田 弘和 大阪府立大学, 工学(系)研究科(研究院), 准教授 (90405358)
• Co-Investigator(Renkei-kenkyūsha): KARASAWA Yoshio 電気通信大学, 大学院情報理工学研究科, 教授 (40313407) ; HONJO Kazuhiko 電気通信大学, 大学院情報理工学研究科, 教授 (90334573) ; MIZUGAKI Yoshinao 電気通信大学, 大学院情報理工学研究科, 教授 (30280887)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 非線形最適化 / 注入同期 / マイクロエレクトロニクス

Outline of Final Research Achievements

Injection-locking of nonlinear oscillators to an external periodic forcing is a fundamental phenomenon which adjusts their frequencies to that of an external forcing. Such injection-locking enables to stabilize the frequency of the oscillator, and it has a long history and produces a large variety of applications. In our research, we develop a method for maximizing the frequency range of an external forcing sustaining the injection-locked mode (i.e., locking range or synchronization band), based on our newly developed optimization theory. As a case study of optimizing synchronizability, we design the input waveforms that maximize locking ranges in an injection-locked Class-E oscillator, by using our optimization theory. Further, we verify the optimality of these inputs through systematic numerical calculations and experiments.

Free Research Field

計算科学