Analysis of noise and dynamical effects in zero-IF self-oscillating mixers
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URI: http://hdl.handle.net/10902/24171ISBN: 978-1-6654-0307-8
ISBN: 978-1-6654-3141-5
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Pontón Lobete, María Isabel; Sancho Lucio, Sergio Miguel; Herrera Guardado, Amparo; Suárez Rodríguez, AlmudenaFecha
2021Derechos
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IEEE/MTT-S International Microwave Symposium (IMS), Atlanta, Georgia, USA, 2021, 180-183
Editorial
Institute of Electrical and Electronics Engineers, Inc.
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Palabras clave
Injection-locking
Noise analysis
Envelope transient
Resumen/Abstract
Zero-IF self-oscillating mixers (SOMs), based on injection locking, enable a compact direct frequency conversion and substantially mitigate the phase noise problem of heterodyne SOMs. Despite these advantages, their operation is complex and susceptible to exhibit a variety of dynamical effects. Here the need for an optimum selection of the operation point in the static injection-locked curve is demonstrated, as well as the inability of the oscillator to follow the variations of the input signal from a certain modulation frequency. Then a noise analysis of the downconverted signal is presented, based on a conversion-matrix formalism applied to a semi-analytical formulation.
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