Effect of high frequency substrate noise on LC-VCOs

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Title:	Effect of high frequency substrate noise on LC-VCOs
Author:	Molina Garcia, Marc Manel; Aragonès Cervera, Xavier; Mateo Peña, Diego; González Jiménez, José Luis
Other authors:	Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. HIPICS - Grup de Circuits i Sistemes Integrats d'Altes Prestacions
Abstract:	This paper presents an experimental analysis of the performance degradation of an LC-Voltage Controlled Oscillator (LC-VCO) produced by high frequency noise present in the substrate. The spurs observed are shown to be caused by a frequency pulling mechanism. Based on the theory of injection locked oscillators, a new analytical model to predict the behavior of the LC-VCO under the effect of high frequency substrate noise is presented. The analytical model, which is successfully compared with experimental measurements on a 7 GHz LCVCO, provides rapid intuition on the relation between spurs and circuit parameters.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència -Injection locked oscillators -Integrated circuit noise -Phase noise -Voltage-controlled oscillators
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Document type:	Article - Published version Conference Object
Published by:	IEEE Press. Institute of Electrical and Electronics Engineers
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