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In 1939 Sidney Darlington proposed a procedure for the design of filters based on the explicit prescription of their losses in the form of a rational function of the variable ω. The procedure consisted of synthesizing an impedance (dipole) that is calculated from the prescribed loss function; and matching the transmission zeros, which inevitably occur when synthesizing the impedance, with the transmission zeros of the prescribed loss function.

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Darlington Synthesis Procedure

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  • 发表日期：

    2025年

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  • Carlos Fernández Marzalo

摘要

In 1939 Sidney Darlington proposed a procedure for the design of filters based on the explicit prescription of their losses in the form of a rational function of the variable ω. The procedure consisted of synthesizing an impedance (dipole) that is calculated from the prescribed loss function; and matching the transmission zeros, which inevitably occur when synthesizing the impedance, with the transmission zeros of the prescribed loss function.