Special Issue on Advances in Oscillator Analysis and Design; Guest Editors: A. S. Elwakil (Univ. of Sharjah, Emirates), T. Ueta (Tokushima Univ., Japan) and K. N. Salama (King Abdullah Univ. of Science and Technology, Saudi Arabia)No Access

MULTI-PHASE OSCILLATION IN RF CMOS LC OSCILLATORS COUPLED BY MUTUAL INDUCTORS

TOSHIHIRO KAWANARI

Graduate School of Engineering, University of Fukui, Bunkyo 3-9-1, Fukui, 910-8507, Japan

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and

SEIICHIRO MORO

Graduate School of Engineering, University of Fukui, Bunkyo 3-9-1, Fukui, 910-8507, Japan

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https://doi.org/10.1142/S0218126610006402Cited by:2 (Source: Crossref)

Abstract

When the oscillators are coupled, coupling methods are very important and influence some factors, for example, increasing or decreasing of noise and whether multi-phase synchronization phenomena can be observed or not due to the number of oscillators and so on. In this paper, multi-phase synchronization phenomena which are generated in RF CMOS LC oscillators with mutual inductor couplings and the stability of various oscillatory modes in the proposed model are investigated. In the proposed system, multi-phase synchronization phenomena can be observed regardless of the number of oscillators in RF region due to setting up the sign of the mutual inductance properly, and the each oscillatory mode is stable.

Keywords:

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