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Experimental Observations of Distributed Nonlinearity in Printed Lines
The paper reports direct experimental observations shedding a new light on nonlinear response of printed transmission lines implemented on PTFE woven glass reinforced substrates. Distributed mechanism of nonlinearity in printed boards is demonstrated by near-field probing of passive intermodulation products generated by two CW carriers along the transmission line. Nonlinear transmission line phenomenology has been successfully applied to analysis and interpretation of the experimental data.
Key words: PTFE laminate, pcb nonlinearity, passive intermodulation (PIM)
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