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This letters explains the approximation of the stretching factor made in our original paper and addresses the impact of the correction proposed in the comments on the accuracy of our result. The stretching factor derived in the comments adds a small correction term to the original stretching factor, which is calculated here.
In this work, we report the results of an active dispersive delay line (DDL) designed out of a distributed amplifier based transversal filter (DATF) with 12 gain cells, achieving the average gain of 2 dB and group delay variance of 3 ns from 3 to 5 GHz. Simulation based upon the measurements of a gain cell and transmission line fabricated with high speed PC Boards demonstrates that the DDL can be...
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