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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Detalhes bibliográficos
Autores: Melville, Robert C., Suárez Rodríguez, Almudena|||0000-0002-5266-5544
Tipo de documento: artigo
Data de publicação:2017
País:España
Recursos:Universidad de Cantabria (UC)
Repositório:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglês
OAI Identifier:oai:repositorio.unican.es:10902/13510
Acesso em linha:http://hdl.handle.net/10902/13510
Access Level:Acceso aberto
Palavra-chave:Bifurcation
Microwave
Nonlinear
Numerical continuation
Stability
Descrição
Resumo: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.