Phase-noise reduction through an external high-Q network using a black-box oscillator model
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Identificadores
URI: http://hdl.handle.net/10902/21160ISBN: 978-2-87487-058-3
ISBN: 978-2-87487-059-0
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Pontón Lobete, María Isabel; Ramírez Terán, Franco Ariel; Herrera Guardado, Amparo; Suárez Rodríguez, AlmudenaFecha
2021Derechos
© 2020 EuMA (European Microwave Association)
Publicado en
50th European Microwave Conference (EuMC), Utrecht, The Netherlands, 2020, 949-952
Editorial
Institute of Electrical and Electronics Engineers, Inc.
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Palabras clave
Oscillator
Phase noise
Dielectric resonator
Resumen/Abstract
A method is presented to minimize the phase noise of an existing oscillator when connected to an external high-Q network. It relies on the experimental extraction of a reducedorder model of the original free-running oscillator, which involves a characterization of its pulling effects. With this model it is possible to predict the solution curves, stability properties and phase-noise of the augmented oscillator. It enables the optimization of the high-Q network to maximize the phase-noise reduction at a stable operation point in a single valued section of the solution curve. The method has been applied to (VCO) MiniCircuits ROS-3000-819+ (2-3GHz) obtaining a phase-noise reduction of about 10 dB with respect to the free-running values.
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