Experimental investigation of bifurcation behavior in nonlinear microwave circuits
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2017-05Derechos
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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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