Experimental investigation of bifurcation behavior in nonlinear microwave circuits

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URI: http://hdl.handle.net/10902/13510
ISSN: 0018-9480
ISSN: 1557-9670
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Autoría
Melville, Robert C.; Suárez Rodríguez, AlmudenaAutoridad Unican
Fecha
2017-05
Derechos
© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Publicado en
IEEE Transactions on Microwave Theory and Techniques, 2017, 65(5), 1545-1559
Editorial
Institute of Electrical and Electronics Engineers Inc.
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Palabras clave
Bifurcation
Microwave
Nonlinear
Numerical continuation
Stability
Resumen/Abstract
We present an experimental technique to study bifurcations in periodically forced nonlinear microwave circuits, including even physically unstable (periodic) steady states. The designer specifies a key node in the circuit being studied (often associated with an active device) and the method synthesizes a voltage waveform to match the waveform at the selected node so that no current flows across the interface. This null condition is maintained while a parameter, such as bias voltage, is varied over a specified range. The addition of the external nulling source is able to stabilize a steady state that would be unstable in the original circuit. Various applications are presented.
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