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Uma medição com analisador de rede vetorial (VNA) em dispositivo de fixação conecta o dispositivo em teste (DUT) por meio de um dispositivo de fixação, em vez de diretamente às portas de teste do analisador. A configuração de medição consiste em um analisador de rede vetorial, cabos de teste calibrados, interfaces do dispositivo de fixação e uma conexão repetível do DUT. O procedimento começa com a calibração em planos de referência de medição acessíveis, seguida pela caracterização do dispositivo de teste e pela aplicação de técnicas apropriadas de correção de erros ou de desembedimento. Em seguida, os engenheiros medem os parâmetros de dispersão (parâmetros S) do DUT em toda a faixa de frequência necessária para avaliar a perda de inserção, a perda de retorno e outras características relevantes de RF, levando em conta os efeitos elétricos introduzidos pelo dispositivo de teste.
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