Experimental investigation of bifurcation behavior in nonlinear microwave circuits

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 synthesi...

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Bibliographic Details
Authors: Melville, Robert C., Suárez Rodríguez, Almudena|||0000-0002-5266-5544
Format: article
Publication Date:2017
Country:España
Institution:Universidad de Cantabria (UC)
Repository:UCrea Repositorio Abierto de la Universidad de Cantabria
Language:English
OAI Identifier:oai:repositorio.unican.es:10902/13510
Online Access:http://hdl.handle.net/10902/13510
Access Level:Open access
Keyword:Bifurcation
Microwave
Nonlinear
Numerical continuation
Stability
Description
Summary: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.